Cat-Back Exhaust for 2020 GMC Sierra 1500 AT4

Shop 80 cat-back exhaust systems that fit the 2020 GMC Sierra 1500 AT4 from aFe, CORSA Performance, Gibson and Flowmaster. Every part shows its real ship date and California status, orders over $100 ship free in the lower 48, and you can hear real sound clips before you buy.

Cat-Back Exhaust for 2020 GMC Sierra 1500 AT4
80 parts that fit, every brand, real ship dates.
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80 products

2020 GMC Sierra 1500 AT4 cat-back exhaust systems: questions and answers

What cat-back exhaust systems fit the 2020 GMC Sierra 1500 AT4?

80 cat-back exhaust systems here are listed by their manufacturers for the 2020 GMC Sierra 1500 AT4, from 7 brands including aFe, CORSA Performance, Gibson, Flowmaster, priced from $144 to $2,210.

Which ones can ship to California?

All 80 can ship to a California address (no CARB restriction).

Which ones ship fastest?

24 are in stock and ship in 1-2 business days. Every other part shows its ship date on its page before you order.

How loud are they?

By the manufacturers' own sound ratings: 9 aggressive, 10 moderate. Use the Sound filter at the top of the page. Parts without a rating are ones whose manufacturer does not rate the series.