1966 Pontiac GTO Exhaust System Kits

Keep Your 1966 Pontiac GTO in Top Shape with Quality Exhaust System Kits

Whether you’re repairing or upgrading your Exhaust System Kit, using high-quality parts is key to keeping your 1966 Pontiac GTO looking sharp and performing at its best. At Advance Auto Parts we carry a wide selection of dependable options, including Exhaust System Kits. Whether you’re replacing a damaged part or enhancing your truck’s style and protection, you’ll find exactly what you need to get the job done right.

Competitive Prices and Extensive Inventory

The average price for a 1966 Pontiac GTO Exhaust System Kit at Advance Auto Parts is around $784.99, with a range that starts at $426.99 and goes up to $1,142.99. With 2 options in stock from 2 trusted brands, finding the right fit is easy. Popular picks like Exhaust System Kit and Street Series Crossmember-Back Performance Exhaust System start at just $426.99 and offer a great balance of form and function.

Explore Related Parts

While you’re upgrading or replacing your Exhaust System Kit, don’t forget to check out other key components like Exhaust Manifold and Headers and Exhaust Mufflers. At Advance Auto Parts, we’re here to help you keep your 1966 Pontiac GTO in peak condition, inside and out.

Essential 1966 Pontiac GTO Exhaust System Kits

JBA Performance – 40-3110 2.5" Stainless Steel Exhaust System 05-06 GTO Dual Exhaust (Part No.40-3110)

40-3110 2.5" Stainless Steel Exhaust System 05-06 GTO Dual Exhaust

from

$1004.99
When it comes to performance exhaust systems, most people are looking for three things: Power, sound,and quality. JBA Exhaust Systems deliver the best of all three, giving it both great looks and performance.One of the first performance upgrades typical

Product Features:
  • JBA Performance Exhaust 40-3110 2.5″ Stainless Steel Exhaust System 05-06 GTO Dual Exhaust
  • Large diameter stainless steel mandrel-bent tube
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MagnaFlow – Street Series Crossmember-Back Performance Exhaust System (Part No.15893)

Street Series Crossmember-Back Performance Exhaust System

from

$1142.99
The MagnaFlow Street Series Crossmember-Back Performance Exhaust System 15893 brings enhanced engine sound and dyno-proven performance to your muscle car with a healthy helping of our deep, resonant signature exhaust note at Moderate exterior and Mild interior sound levels. Thanks to its durable, corrosion resistant stainless steel design, this exhaust system will handle whatever tarmac you decide to leave your mark on. This performance exhaust kit features a crossmember-back layout designed to replace your exhaust system from the crossmember on back. With its fast-flowing, mandrel bent 2.5in. main piping and 2 Straight-Through mufflers ending in a Multiple Exit Options exit with 2.75in. Polished Weld-On Single Wall Turndown Cut Edge tips, your muscle car will be sounding as awesome as it looks. Extensive 3D scanning during development has resulted in a direct-fit design that you can easily install yourself. 15893 is produced using CNC precision robotic manufacturing techniques and is backed by MagnaFlow’s limited construction warranty.

Product Features:
  • Durable corrosion-resistant stainless steel construction
  • CNC precision robotic manufacturing techniques
  • Dyno-proven performance
See More

JBA Performance – 40-3109 2.5" Stainless Steel Exhaust System 04 GTO Dual Exhaust (Part No.40-3109)

40-3109 2.5" Stainless Steel Exhaust System 04 GTO Dual Exhaust

from

$988.99
When it comes to performance exhaust systems, most people are looking for three things: Power, sound,and quality. JBA Exhaust Systems deliver the best of all three, giving it both great looks and performance.One of the first performance upgrades typical

Product Features:
  • JBA Performance Exhaust 40-3109 2.5″ Stainless Steel Exhaust System 04 GTO Dual Exhaust
  • Large diameter stainless steel mandrel-bent tube
See More

MagnaFlow – Street Series Cat-Back Performance Exhaust System (Part No.15868)

Street Series Cat-Back Performance Exhaust System

from

$1327.99
The MagnaFlow 2004 Pontiac GTO Street Series Cat-Back Performance Exhaust System brings out the personality of your 5.7L 2004-2004 Pontiac GTO with our signature resonant, powerful engine tone and dyno-proven performance. Thanks to its fast-flowing, mandrel bent 2.5in. main piping and 2 Straight-Through mufflers ending in a Dual Straight Driver Side Rear exit with 3in. Polished Welded-On Double Wall Angle Cut Rolled Edge tips, this Pontiac GTO exhaust kit has the performance chops to match its sporty sound and appearance. Upgrade your ride to the next level with an exhaust that has the pipes to put other Pontiac GTO’s to shame. With this system your vehicle will be producing Moderate exterior and Mild interior sound levels while leaving other cars and trucks feeling envious at every stoplight. Exhaust kit 15868 features a cat-back layout that replaces your ride’s stock exhaust components from near the catalytic converter on back. Extensive 3D scanning during development has resulted in a direct-fit design that you can easily install yourself. 15868 is produced using CNC precision robotic manufacturing techniques and is backed by MagnaFlow’s limited finish warranty and limited construction warranty.

Product Features:
  • Durable corrosion-resistant stainless steel construction
  • CNC precision robotic manufacturing techniques
  • Dyno-proven performance
See More

MagnaFlow – Street Series Cat-Back Performance Exhaust System (Part No.15892)

Street Series Cat-Back Performance Exhaust System

from

$1327.99
The MagnaFlow 2005-2006 Pontiac GTO Street Series Cat-Back Performance Exhaust System brings out the personality of your 6.0L 2005-2006 Pontiac GTO with our signature resonant, powerful engine tone and dyno-proven performance. Thanks to its fast-flowing, mandrel bent 2.5in. main piping and 2 Straight-Through mufflers ending in a Dual Split Rear exit with 4in. Polished Welded-On Double Wall Angle Cut Folded Edge tips, this Pontiac GTO exhaust kit has the performance chops to match its sporty sound and appearance. Upgrade your ride to the next level with an exhaust that has the pipes to put other Pontiac GTO’s to shame. With this system your vehicle will be producing Moderate exterior and Mild interior sound levels while leaving other cars and trucks feeling envious at every stoplight. Exhaust kit 15892 features a cat-back layout that replaces your ride’s stock exhaust components from near the catalytic converter on back. Extensive 3D scanning during development has resulted in a direct-fit design that you can easily install yourself. 15892 is produced using CNC precision robotic manufacturing techniques and is backed by MagnaFlow’s limited finish warranty and limited construction warranty.

Product Features:
  • Durable corrosion-resistant stainless steel construction
  • CNC precision robotic manufacturing techniques
  • Dyno-proven performance
See More

Thrush – Exhaust System Kit (Part No.89023)

Exhaust System Kit

from

$426.99
Product Features:
  • FOR CLASSIC VEHICLES: Designed for 1964-72 Buick Skylark; 1964-72 Chevrolet Chevelle, Malibu, Monte Carlo; 1964-72 Oldsmobile Cutlass, F85, Cutlass Supreme; 1964-72 Pontiac GTO, LeMans, Tempest; see product information for engine spec
  • ENGINEERED TO LAST: Features 2.5-in. aluminized smooth bend pipes
  • COMPLETE SOLUTION: Designed to bolt to full-length headers, the kit includes H-pipe balance tube and all hangers, brackets and other hardware necessary for installation
  • CLASSIC SOUND: Features Thrush Turbo mufflers with tri-flow design with reversible flow chambers for that classic Thrush sound
  • STRONG AND DURABLE: Muffler has a 100% aluminized-coated shell and spun lock heads for long life
  • EASY TO INSTALL: Bolt-on installation for an easy upgrade; no fabrication or welding required
  • BUY WITH CONFIDENCE: Comes with Thrush’s limited warranty
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Most Popular Exhaust System Kits for 1966 Pontiac GTOs

Enhance your 1966 Pontiac GTO with one of the 2 Exhaust System Kits we have in stock, starting at just $426.99.

Thrush – Exhaust System Kit (Part No.89023)

Exhaust System Kit

from

$426.99
Product Features:
  • FOR CLASSIC VEHICLES: Designed for 1964-72 Buick Skylark; 1964-72 Chevrolet Chevelle, Malibu, Monte Carlo; 1964-72 Oldsmobile Cutlass, F85, Cutlass Supreme; 1964-72 Pontiac GTO, LeMans, Tempest; see product information for engine spec
  • ENGINEERED TO LAST: Features 2.5-in. aluminized smooth bend pipes
  • COMPLETE SOLUTION: Designed to bolt to full-length headers, the kit includes H-pipe balance tube and all hangers, brackets and other hardware necessary for installation
  • CLASSIC SOUND: Features Thrush Turbo mufflers with tri-flow design with reversible flow chambers for that classic Thrush sound
  • STRONG AND DURABLE: Muffler has a 100% aluminized-coated shell and spun lock heads for long life
  • EASY TO INSTALL: Bolt-on installation for an easy upgrade; no fabrication or welding required
  • BUY WITH CONFIDENCE: Comes with Thrush’s limited warranty
See More

MagnaFlow – Street Series Crossmember-Back Performance Exhaust System (Part No.15893)

Street Series Crossmember-Back Performance Exhaust System

from

$1142.99
The MagnaFlow Street Series Crossmember-Back Performance Exhaust System 15893 brings enhanced engine sound and dyno-proven performance to your muscle car with a healthy helping of our deep, resonant signature exhaust note at Moderate exterior and Mild interior sound levels. Thanks to its durable, corrosion resistant stainless steel design, this exhaust system will handle whatever tarmac you decide to leave your mark on. This performance exhaust kit features a crossmember-back layout designed to replace your exhaust system from the crossmember on back. With its fast-flowing, mandrel bent 2.5in. main piping and 2 Straight-Through mufflers ending in a Multiple Exit Options exit with 2.75in. Polished Weld-On Single Wall Turndown Cut Edge tips, your muscle car will be sounding as awesome as it looks. Extensive 3D scanning during development has resulted in a direct-fit design that you can easily install yourself. 15893 is produced using CNC precision robotic manufacturing techniques and is backed by MagnaFlow’s limited construction warranty.

Product Features:
  • Durable corrosion-resistant stainless steel construction
  • CNC precision robotic manufacturing techniques
  • Dyno-proven performance
See More

FAQs for 1966 Pontiac GTO Exhaust System Kits

What are the best-selling Exhaust System Kits for 1966 Pontiac GTOs?

Out of 2 Exhaust System Kits that fit 1966 Pontiac GTOs, the following parts are the top sellers:

What’s the price range for 1966 Pontiac GTO Exhaust System Kits?

The prices of Exhaust System Kits for the 1966 Pontiac GTO range from $426.99 up to $1,142.99 for the most premium parts.

What is the average price of an Exhaust System Kit for a 1966 Pontiac GTO?

The average price for Exhaust System Kits for the 1966 Pontiac GTO is $784.99. Keep in mind the variety of part types within our Exhaust System Kit category, where you are likely to find a wide range of prices across a variety of parts and components.

Does Advance Auto Parts sell Exhaust System Kits for other Pontiac GTO model years?

Yes, we carry Exhaust System Kits for 10 model years of Pontiac GTOs between 1964 and 2006. The following model years are the most popular for Exhaust System Kit purchases: 2006, 2005, 2004, 1972, 1971, 1970, 1969, 1968, and 1967.

What are the cheapest Exhaust System Kits for my 1966 Pontiac GTO?

The cheapest 1966 Pontiac GTO Exhaust System Kits we carry are:

Does Advance Auto Parts sell Exhaust System Kits for any other 1966 Pontiac models?

Yes. We stock Exhaust System Kits for 1 other popular 1966 Pontiac models. Some of the most popular are 1966 LeMans Exhaust System Kits and 1966 Tempest Exhaust System Kits.

What types of Exhaust System Kits do you sell for my 1966 Pontiac GTO?

We currently have just 1 Exhaust System Kit in stock for a 1966 Pontiac GTO, and as of 11/2/25, it is an Exhaust System Kit.

Can I get help with 1966 Pontiac GTO Exhaust System Kit orders?

Contact our customer support team by chat or phone, through the help desk page, where you can find instant answers about Pontiac Exhaust System Kits and more.

What is your return policy for Pontiac GTO Exhaust System Kits?

Advance Auto Parts keeps returns simple. For new Pontiac GTO Exhaust System Kits and accessories, your online orders can be returned, in their original condition, within 45 days. For requirements, see the returns page.