1981 Pontiac Grand Lemans Exhaust Parts

Essential 1981 Pontiac Grand Lemans Exhaust Parts

ARP Auto Racing – For Use With Chevy Small Block, 3/8"-16, 1"L, Hex Head, Natural, Ss, Set Of 12 (Part No.400-1111)

For Use With Chevy Small Block, 3/8"-16, 1"L, Hex Head, Natural, Ss, Set Of 12

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$44.49
ARP manufactures a variety of premium grade bolt and stud kits to facilitate installation of exhaust headers including the popular stainless stud kit with 12 point nuts. The Stainless 300 material is not affected by corrosion or extreme heat, making it ideal for the application.

Product Features:
  • Material Is Not Affected By Corrosion Or Extreme Heat
  • The Compact 12-Point Nut Lets You Easily Slip A Socket Close To The Pipe
  • Substantially Stronger Than Grade 8 Hardware
  • Nominally Rated At 170,000 Psi Tensile Strength
  • 3/8″-16 Thread Size
  • 1″ Underhead Length
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Dorman – Help – Manifold Bolt and Spring Kit 3/8-16X1-3/4 In. (Part No.03137)

Manifold Bolt and Spring Kit 3/8-16X1-3/4 In.

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$12.29
Exhaust manifold fastener kits provide a time-saving solution for repairing the manifold. Each kit is designed for direct replacement of rusted or damaged exhaust bolts and springs.

Product Features:
  • New hardware helps fix exhaust leaks
  • Depending on the application, kits include hardware to securely attach the manifold to the exhaust system
  • Also available separately (where applicable)
  • Hardened steel construction for long-lasting durability
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Dorman – Direct Fit Exhaust Manifold: Without Heat Shield (Part No.674-197)

Direct Fit Exhaust Manifold: Without Heat Shield

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$144.99
This exhaust manifold was precision-engineered and durably manufactured to match the fit and function of the original manifold on specified vehicles. It includes all necessary gaskets and downpipe hardware for a complete repair.

Product Features:
  • Ideal replacement – this exhaust manifold was precision-engineered and durably manufactured to match the fit and function of the stock manifold on specified vehicles
  • Reliable construction – durable materials resist warping, cracking and leaking for long-lasting performance
  • Complete repair – includes all necessary gaskets and downpipe hardware
  • Trustworthy design – built by industry leader in aftermarket manifolds
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Hooker Headers – ExhstHdr (Part No.2301HKR)

ExhstHdr

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$642.99
ExhstHdr

Walker – Clamp U-Bolt Bolt Dia 0.375 Length Nut Type Hex Pipe Dia 2.25 (Part No.35336)

Clamp U-Bolt Bolt Dia 0.375 Length Nut Type Hex Pipe Dia 2.25

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$2.49
Complete your exhaust repair with an Exhaust Mate® U-bolt clamp. Designed to ensure a tight, leak-resistant connection, Exhaust Mate hardware is manufactured from durable and robust material for long service life.

Product Features:
  • CONNECTS EXHAUST PARTS — Provides secure, leak-resistant connection
  • AVAILABLE IN DIFFERENT SIZES — Offered in a variety of styles and sizes for a quality vehicle repair
  • PREMIUM MATERIALS – Made from quality material for durability and long life
  • BETTER TOGETHER — Use Walker® accessories when installing catalytic converters and mufflers for a complete exhaust system upgrade
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Walker – Clamp U-Bolt Bolt Dia 0.375 Length Nut Type Hex Pipe Dia 2 (Part No.35335)

Clamp U-Bolt Bolt Dia 0.375 Length Nut Type Hex Pipe Dia 2

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$1.99
Complete your exhaust repair with an Exhaust Mate® U-bolt clamp. Designed to ensure a tight, leak-resistant connection, Exhaust Mate hardware is manufactured from durable and robust material for long service life.

Product Features:
  • CONNECTS EXHAUST PARTS — Provides secure, leak-resistant connection
  • AVAILABLE IN DIFFERENT SIZES — Offered in a variety of styles and sizes for a quality vehicle repair
  • PREMIUM MATERIALS – Made from quality material for durability and long life
  • BETTER TOGETHER — Use Walker® accessories when installing catalytic converters and mufflers for a complete exhaust system upgrade
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Walker – Tail Pipe Aluminized 25.509" (Part No.43770)

Tail Pipe Aluminized 25.509"

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$38.49
Made from aluminized steel for durability, Walker® premium pipe is manufactured with precision benders and fixture checked to ensure a precise fit for quick and easy installation.

Product Features:
  • RESISTS CORROSION — Durable aluminized steel construction for corrosion resistance and performance
  • EASY TO INSTALL — Manufactured with precision bends and OE-style routings, hangers and connectors for easy installation (where applicable)
  • OE-STYLE PERFORMANCE — Direct-fit design is fixture checked to ensure a precise fit that performs like original equipment
  • BETTER TOGETHER — Use premium Walker accessories when installing Walker catalytic converters and mufflers for a complete exhaust system upgrade
  • AVAILABLE IN DIFFERENT SIZES — Offered in a variety of lengths and diameters and features the appropriate Inlet Diameter (I.D.) – Outlet Diameter (O.D.) connection; see product specifications for more information
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Walker – Exhaust 31865 Exhaust Flange. (Part No.31865)

Exhaust 31865 Exhaust Flange.

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$14.29
Walker®, with our worldwide OE partnerships and manufacturing facilities, possesses the technical excellence needed to meet today’s emissions control needs, while developing solutions for tomorrow’s challenges. Walker® is a ‘one-stop’ convenience, offerin

Product Features:
  • Offered in a variety of styles and sizes for your installation needs
  • High quality material helps to ensure a leak-free connection
  • New Walker® accessories help to ensure effective exhaust repairs
  • Designed to work seamlessly with Walker aftermarket replacement parts
  • Walker® supplies all of the accessories you need to do the complete exhaust job
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Walker – Exhaust 31882 Exhaust Flange. (Part No.31882)

Exhaust 31882 Exhaust Flange.

from

$16.49
Walker®, with our worldwide OE partnerships and manufacturing facilities, possesses the technical excellence needed to meet today’s emissions control needs, while developing solutions for tomorrow’s challenges. Walker® is a ‘one-stop’ convenience, offerin

Product Features:
  • Offered in a variety of styles and sizes for your installation needs
  • High quality material helps to ensure a leak-free connection
  • New Walker® accessories help to ensure effective exhaust repairs
  • Designed to work seamlessly with Walker aftermarket replacement parts
  • Walker® supplies all of the accessories you need to do the complete exhaust job
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Walker – SoundFX Muffler, Direct Replacement, No Fabrication Needed (Part No.18409)

SoundFX Muffler, Direct Replacement, No Fabrication Needed

from

$83.99
Featuring 100% aluminized steel for longer service life compared to low-carbon steel, Walker SoundFX® direct-fit mufflers deliver quality appearance and favorable acoustics while mechanical interior joints and spun-locked heads provide durability.

Product Features:
  • RESISTS CORROSION — Aluminized steel construction and internal drainage system helps reduce corrosion
  • BUILT TO LAST — Internal partitions and mechanically joined tubes allow expansion and contraction during temperature changes to minimize distortion while spun-locked heads and OE-style spot welds provide stability and longer service life
  • EASY TO INSTALL — Direct-fit bolt-on replacement solution with OE-style hangers, brackets and pipe routings for easy installation that doesn’t require specialized fabrication and/or welding
  • FACTORY SOUND — Louvered tubes help reduce radiated noise for factory-style sound quality compared to straight perforated tubes
  • GET MORE MILES FROM YOUR MUFFLER — Designed and tested to extend muffler life
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Walker – Sound Solution Muffler (Part No.18759)

Sound Solution Muffler

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$62.99
Sound Solution mufflers are engineered with 100% aluminized steel for longer service life compared to low carbon steel. These mufflers have mechanical interior joints for durability, And spun-locked heads for resistance to rupture from backfires. Sound Solution mufflers are available in a universal fitment style, with both quality appearance And favorable acoustics.
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Walker – SoundFX Muffler, Direct Replacement, No Fabrication Needed (Part No.18280)

SoundFX Muffler, Direct Replacement, No Fabrication Needed

from

$76.99
Featuring 100% aluminized steel for longer service life compared to low-carbon steel, Walker SoundFX® direct-fit mufflers deliver quality appearance and favorable acoustics while mechanical interior joints and spun-locked heads provide durability.

Product Features:
  • RESISTS CORROSION — Aluminized steel construction and internal drainage system helps reduce corrosion
  • BUILT TO LAST — Internal partitions and mechanically joined tubes allow expansion and contraction during temperature changes to minimize distortion while spun-locked heads and OE-style spot welds provide stability and longer service life
  • EASY TO INSTALL — Direct-fit bolt-on replacement solution with OE-style hangers, brackets and pipe routings for easy installation that doesn’t require specialized fabrication and/or welding
  • FACTORY SOUND — Louvered tubes help reduce radiated noise for factory-style sound quality compared to straight perforated tubes
  • GET MORE MILES FROM YOUR MUFFLER — Designed and tested to extend muffler life
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MagnaFlow – Standard Grade Federal / EPA Compliant Direct-Fit Catalytic Converter (Part No.93431)

Standard Grade Federal / EPA Compliant Direct-Fit Catalytic Converter

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$333.99
MagnaFlow Standard Grade Federal/EPA Compliant Direct-Fit Catalytic Converter 93431 helps keep the check engine light off. DIY installation is easy with the proper tools (no cutting or welding required). With features including mandrel-bent tubing to eliminate flow restrictions and stainless steel construction to resist corrosion, you can have confidence in the quality of this catalytic converter. Using state-of-the-art 3D scanning systems in the design process, the MagnaFlow metrology department ensures this new part to fit and function like the original equipment. This direct-fit catalytic converter is designed to fit the 1977-1980 Cadillac DeVille, 1977-1980 Chevrolet Impala, and additional vehicles. This replacement part is designed to meet or exceed Federal emissions requirements set forth by the EPA, complying with legal standards for pre-OBDII Federally registered vehicles.

Product Features:
  • Expertly crafted to replicate OEM-like flow dynamics, maintaining factory performance and fuel efficiency.
  • Simplifies installation with essential gaskets and hardware being included in the box.
  • Your trusted source for EPA-compliant catalytic converters, providing assurance of genuine compliance while delivering quality that will last.
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Walker – Catalytic Converter- EPA Standard, Direct Replacement, No Fabrication Needed (Part No.15032)

Catalytic Converter- EPA Standard, Direct Replacement, No Fabrication Needed

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$171.99
Designed to provide the required reduction in tailpipe emissions and meet EPA emissions requirements with assured compliance, Walker® Universal Catalytic Converters are available for pre-OBDII (1995 and older) vehicles.

Product Features:
  • EPA COMPLIANT — For use on pre-OBDII vehicles, 1995 and older. Not legal for sale or use in CA, CO and NY. Legal in ME on all pre-OBD vehicles only. Consult your state’s aftermarket converter regulations for details.
  • NO BREAK IN REQUIRED — Ready to operate with application-specific converter shell design and mat compression, no converter break in required after installation
  • DURABLE — Features stainless-steel body with aluminized pipe and heat shields for durability
  • FLEXIBLE SOLUTION — Customizable design features expandable bushings for easy fitment and may require specialized fabrication and/or welding for installation
  • OE-STYLE DESIGN — Features aluminized heat shields when originally equipped, to match OE design, protecting the undercarriage from heat created by the converter
  • BUY WITH CONFIDENCE — Backed by Walker’s 25,000-mile/40,000-kilometer emissions and 5-year 50,000-mile/80,000-kilometer structural integrity warranty. Visit Walkerexhaust.com for details.
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MagnaFlow – Standard Grade Federal / EPA Compliant Universal Catalytic Converter (Part No.94006)

Standard Grade Federal / EPA Compliant Universal Catalytic Converter

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$119.99
MagnaFlow Standard Grade Federal/EPA Compliant Universal Catalytic Converter 94006 helps keep the check engine light off. Get the right fit for a wide array of vehicles thanks to the adaptable Universal design (cutting and welding is required). With highly corrosion resistant, stainless steel construction, you can have confidence in the quality of this catalytic converter. This replacement part is designed to meet or exceed Federal emissions requirements set forth by the EPA, complying with legal standards for pre-OBDII Federally registered vehicles.

Product Features:
  • Expertly formulated catalyst blend maximizes efficiency, ensuring optimal emissions control to keep your check engine light off.
  • Compact, lightweight construction enables installation in confined areas, welding is required.
  • Your trusted source for EPA-compliant catalytic converters, providing assurance of genuine compliance while delivering quality that will last.
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Taylor Gaskets – Seal-4-Good Header Flange Gasket (Part No.66012)

Seal-4-Good Header Flange Gasket

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$51.99
Seal-4-Good Header Flange Gasket

Taylor Gaskets – Seal-4-Good Header Flange Gasket (Part No.66041)

Seal-4-Good Header Flange Gasket

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$48.99
Seal-4-Good Header Flange Gasket

Hooker Headers – Super Competition Header Gasket (Part No.10808HKR)

Super Competition Header Gasket

from

$23.29
Hooker’s precision-matched Super Competition header gaskets provide a sure fit and unmatched exhaust sealing. This OEM quality gasket is constructed of a thick ,.060 inch, high temperature, non-asbestos fiber laminate with a perforated steel core, which provides a superior grip and adhesion. This construction also contributes to exact fit compliance between the cylinder head and header flange, offering excellent sealing properties during extreme temperature and operating conditions.

Product Features:
  • Tear Resistant
  • Precisely Cut To Match Header
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ARP Auto Racing – ARP Header Bolt Kit (Part No.100-1402)

ARP Header Bolt Kit

from

$69.99
ARP manufactures a variety of premium grade bolt and stud kits to facilitate installation of exhaust headers including the popular stainless steel kit with 12-point nuts. The stainless material is not affected by corrosion or extreme heat, making it ideal for the application. What’s more, the compact 12-point nut lets you easily slip a socket close to the pipe. Each ARP accessory stud or bolt kit includes the specific number of parts for your appliaction, plus premium-quality washers and hex or 12-point nuts, as required. Studs are manufactured with a unique nut-starter nose that helps prevent cross-threading. Studs and bolts come either Black Oxide chrome moly or Stainless. Both are nominally rated at 180,000 psi tensile strength; substantially stronger than Grade 8 hardware. Specially drilled NASCAR models are available for those who wish to safety wire their bolts to prevent loosening.

Product Features:
  • 3/8″-16 Thread Size(s)
  • Steel
  • Black Oxide
  • Small Block Chevy
  • 12-Point Head
  • Set of 12
  • 1.670″ Overall Length
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Dorman – Double Ended Stud Kit – 3/8-16 x 1-1/4 in and 3/8-16 x 7/16 in (Part No.29200)

Double Ended Stud Kit - 3/8-16 x 1-1/4 in and 3/8-16 x 7/16 in

from

$9.99
This exhaust flange stud and nut are designed to match the fit and function of the original hardware on specified vehicles. Made of quality materials, this hardware is engineered for reliable performance.

Product Features:
  • Direct replacement – this exhaust flange stud and nut are designed to match the fit and function of the original hardware on specified vehicles
  • Ideal solution – this stud and nut are reliable replacements for original parts that are missing or have failed due to wear
  • Durable construction – these parts are made from quality materials to ensure reliable performance and long service life
  • Trustworthy quality – backed by team of product experts in the United States and more than a century of automotive experience
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Dorman – Double Ended Stud – 3/16-16 x 1-5/8in and 3/8-16 x 3-1/4in (Part No.29201)

Double Ended Stud - 3/16-16 x 1-5/8in and 3/8-16 x 3-1/4in

from

$9.99
This exhaust flange stud and nut are designed to match the fit and function of the original hardware on specified vehicles. Made of quality materials, this hardware is engineered for reliable performance.

Product Features:
  • Direct replacement – this exhaust flange stud and nut are designed to match the fit and function of the original hardware on specified vehicles
  • Ideal solution – this stud and nut are reliable replacements for original parts that are missing or have failed due to wear
  • Durable construction – these parts are made from quality materials to ensure reliable performance and long service life
  • Trustworthy quality – backed by team of product experts in the United States and more than a century of automotive experience
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Dorman – Help – Exhaust Stud Kit – 3/8-16 x 2-1/2 In. (Part No.03112)

Exhaust Stud Kit - 3/8-16 x 2-1/2 In.

from

$6.29
Our exhaust manifold flange kit includes all necessary studs and nuts for a complete repair.

Product Features:
  • Direct replacement for a proper fit every time
  • Durable steel construction
  • New hardware helps fix exhaust leaks
  • Also available in the Exhaust Manifold Hardware Kit
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Walker – Bracket Bolt On Length 1.625 (Part No.35181)

Bracket Bolt On Length 1.625

from

$7.29
Walker, with our worldwide OE partnerships and manufacturing facilities, possesses the technical excellence needed to meet today’s emissions control needs, while developing solutions for tomorrow’s challenges. Walker is a ‘one-stop’ convenience, offerin

Product Features:
  • Offered in a variety of styles and sizes for your installation needs
  • New Walker accessories help to ensure effective exhaust repairs
  • Constructed from durable and robust material for long life
  • Designed to work seamlessly with OE and Walker aftermarket replacement parts
  • Walker supplies all of the accessories you need to do the complete exhaust job
See More

Flowtech – Terminator; Exhaust Tips (Part No.59905FLT)

Terminator; Exhaust Tips

from

$85.99


Product Features:
  • Show Quality Chrome Platinum
  • Durable Black Finish
  • Can Be Welded Or Clamped
  • Complete The System
  • Glass-Packed Resonators
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1981 Pontiac Grand Lemans Exhaust Parts

You count on your 1981 Pontiac Grand Lemans to run right. That means taking care of it with regular maintenance, necessary repairs, and the right parts. Advance Auto Parts can help with all of that thanks to our extensive inventory of trusted Exhaust Parts. With 29 Exhaust Parts ranging in price from $1.99 to $642.99, you’re sure to find everything you need for your 1981 Pontiac Grand Lemans.

Brands matter. If you want to shop a specific Exhaust Parts brand, we stock 8 different brands like Walker, Dorman, and Flowtech. 1981 Pontiac Grand Lemans Exhaust Parts start as low as $1.99!

One of the best ways to find top quality OEM or aftermarket Exhaust Parts is by asking professionals. Short of that, you can shop with confidence thanks to our 152 extensive product reviews on 1981 Pontiac Grand Lemans Exhaust Parts. Some of the top-rated Exhaust Parts products we carry are Exhaust 35574 Catalytic Converter Air Tube with 5.0 stars and Standard Grade Federal / EPA Compliant Direct-Fit Catalytic Converter with 4.0 stars.

Did we mention you can order your Exhaust Parts from our online catalog and have them shipped right to your garage? Or, if you feel like seeing the parts first-hand, search for your nearest Advance Auto Parts location above and pick up in-store when you’re ready. Browse our full Exhaust Parts inventory for your 1981 Pontiac Grand Lemans below to get started!

Top-Rated Exhaust Parts Brands For Your 1981 Pontiac Grand Lemans

Trusted Exhaust Parts OEM and aftermarket product brands are what Advance Auto Parts specializes in. The brands we work with are sure to keep that 1981 Pontiac Grand Lemans running right for years to come. In our inventory you’ll find brands like Walker, Dorman, Flowtech, and even more.

Popular Dorman Exhaust Parts

You’ll find popular Dorman brand products across Exhaust Hangers. All are waiting to get your 1981 Pontiac Grand Lemans back on the road. Some of the top-rated Dorman products in these categories are:
Double Ended Stud - 3/16-16 x 1-5/8in and 3/8-16 x 3-1/4in
from $9.99
(1)
Double Ended Stud – 3/16-16 x 1-5/8in and 3/8-16 x 3-1/4in
Exhaust Hangers and Hardware

FAQs for 1981 Pontiac Grand Lemans Exhaust Parts

What are the most purchased Exhaust Parts for the 1981 Pontiac Grand Lemans?

Out of 29 Exhaust Parts for the 1981 Pontiac Grand Lemans, the most popular in our inventory are:
Exhaust Stud Kit - 3/8-16 x 2-1/2 In.
from $6.29
This product is not rated
Exhaust Stud Kit – 3/8-16 x 2-1/2 In.
Exhaust Hangers and Hardware
SoundFX Muffler, Universal/ Fabrication Needed
from $85.99
This product is not rated
SoundFX Muffler, Universal/ Fabrication Needed
Mufflers
Terminator; Exhaust Tips
from $85.99
(5)
Terminator; Exhaust Tips
Exhaust Chrome and Stainless Tips

What are the top-rated 1981 Pontiac Grand Lemans Exhaust Parts?

Top-rated Exhaust Parts for your 1981 Pontiac Grand Lemans based on customer reviews/ratings are:
Exhaust 35574 Catalytic Converter Air Tube
from $87.99
(1)
Exhaust 35574 Catalytic Converter Air Tube
“the rubber still looks good after a week of driving.”
Standard Grade Federal / EPA Compliant Direct-Fit Catalytic Converter
from $166.99
(1)
Standard Grade Federal / EPA Compliant Direct-Fit Catalytic Converter
“The mounting of this product was very easy, however the exhaust pipe mounting point was about .75″ too long. I had to shorten the pipe by removing an”