Your GMC Sierra 1500 will be happy to know that the search for the right Catalytic Converter products you’ve been looking for is over! Advance Auto Parts has 55 different Catalytic Converter for your vehicle, ready for shipping or in-store pick up. The best part is, our GMC Sierra 1500 Catalytic Converter products start from as little as $209.99.
When it comes to your GMC Sierra 1500, you want parts and products from only trusted brands. Here at Advance Auto Parts, we work with only top reliable Catalytic Converter product and part brands so you can shop with complete confidence. Some of our top Catalytic Converter product brands are Walker and MagnaFlow. We’re sure you will get the right product to keep that Sierra 1500 running for a long time.
We even have reviews of our OEM and aftermarket Catalytic Converter products to help you buy with confidence. Hear from other customers via the 5,201 reviews on parts for your GMC Sierra 1500.
Shop online, find the best price on the right product, and have it shipped right to your door. If you prefer to shop in person for the right Catalytic Converter products for your Sierra 1500, visit one of our local Advance Auto Parts locations and you’ll be back on the road in no time!
Use the fitment form at the top of the page to select your exact year and engine type for your GMC Sierra 1500.
Submitted 2013-10-10
By Kevin
From Minneapolis, MN
I am really pleased with the ease of installation of this product . I would recommend this product .
Bottom Line recommended
from $793.99
View ProductSubmitted 2019-12-26
By Fred
From Undisclosed
Installed this Catalytic Converter and passed state inspection right away. Tried a cheaper product from an online discount parts warehouse. After multiple attempts could not pass state inspection. Bit the bullet and paid for the Walker quality part.
Bottom Line NULL
Submitted 2018-06-15
By Daniel
From undisclosed
Perfect fit for 2007 Suburban 5.3.
Bottom Line NULL
Submitted 2017-11-14
By Michael
From undisclosed
I installed the converter on a 2008 avalanche the truck runs like it did when it was new
Bottom Line NULL
from $766.99
View ProductSubmitted 2013-11-26
By Penny pincher
From Vermont
Fit perfectly first time, includes gasket part number 31718, is CARB compliant, met standards for vehicle inspection and turned off all warning codes. Vehicle now sounds quieter and runs smoother, also increased gas mileage mostly due to the fact that it was running poorly with malfunctioning catalytic converter. Advance Auto web site was user friendly and ensured the right part as long as you correctly identify your vehicle. Saved about $400 on price for same part from dealer. Overall very positive experience. Now waiting for my extra $25 from Advance for my next purchase.
Bottom Line recommended
from $2508.99
View ProductSubmitted 2011-09-24
By Reverand2000
From Atlanta, Ga.
This catalytic convert was a exact fit for my vehicle and no problem to install. Cost was about a couple hundred less than local purchase items and many hundreds lower than dealer.
Bottom Line recommended
from $759.99
View ProductSubmitted 2014-10-15
By sunrisor
From Parkesburg, Pa
Top quality fit and finish, O2 senors holes in the correct locations. 2-peice design made installation straight forward. Everything you would expect from Magnaflow....except...hardware is not included. Fortunately I was able to remove all the nuts and reuse them. Considering what this costs, the least they could do is include new hardware. I would recommend this product, but get new hardware also. Would've put 5 stars if it included hardware.
Bottom Line recommended
Submitted 2014-01-17
By Master
From Jewel, Ia
Went on well, Must support Transmission drop one side of cross mount to remove and install, don't forget pb blaster for the bolts. deep well sockets 15 mm and 21mm.
Bottom Line recommended
Submitted 2013-11-18
By Scott
From Dallas, Tx.
I'm noticing a little more exhaust noise but that's ok, it's breathing a lot better and it appears to have more power.
Bottom Line recommended
from $837.99
View ProductSubmitted 2019-12-12
By Muhmmad
From Undisclosed
Yes
Bottom Line NULL
Submitted 2018-12-30
By Michael
From Undisclosed
Good product but very little room for error when cutting off old catalytic converter and matching up to new.
Bottom Line NULL
Submitted 2018-10-14
By Matthew
From Undisclosed
Great product
Bottom Line NULL
from $209.99
View ProductSubmitted 2018-02-22
By Dennis
From undisclosed
Perfect fit.
Bottom Line NULL
Submitted 2017-11-28
By Robert
From undisclosed
OEM fit. Passes emissions in Georgia. We will see how long it lasts.
Bottom Line NULL
Submitted 2013-03-13
By Longpond John
From Rochester NY
like the others have said not exact fit from what I took off but only because the lh gasket is not an grooved oring style. get a 31718 gasket and pop that on there and all is good. Fit like a champ, restored power, no misfires, no p0420 hope it lasts
Bottom Line NULL
from $854.99
View ProductSubmitted 2020-01-22
By Ken
From Pa
Exact fit means you take one off and put one on, not using extension Pipe and expansion adaptors. This is not exact fit!
Bottom Line not recommended
Submitted 2018-03-21
By Wayne
From undisclosed
excellant
Bottom Line NULL
Submitted 2016-03-23
By FireChicken
From Matthews, NC
The spec is incorrect. The Inlet is 3 inches, and the outlet is 2 1/2 inches. If you choose the 2 1/2 inlet there will be a flow restriction. If this is of any concern, use the 3 inch inlet, outlet converter, and an adapter on the outlet to bring it back to 2 1/2 inch pipe. Good product!
Bottom Line recommended
from $444.99
View ProductSubmitted 2018-09-09
By BillTheWelder
From Virginia Beach VA
This is a good aftermarket cat that you will have to modify to fit your vehicle. This a universal cat that is determined to be an exact fit based on the engine you have in your vehicle and it's displacement. Exhaust flow rates will be different from a 4 to a 10 cylinder which means that all parts of an exhaust system have to be sized to meet a minimum flow rate to allow the exhaust gases to pass through without causing restrictions and hurting power and gas mileage.
Bottom Line recommended
Submitted 2015-04-18
By upset
From Manassas Va.
This is NOT an exact fit. It is 2.5 inches shorter than what is on the truck!
Bottom Line not recommended
from $263.99
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