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AWD/RWD LTG Downpipe

Exhaust - AWD/RWD LTG Downpipe
Exhaust - AWD/RWD LTG Downpipe
Exhaust - AWD/RWD LTG Downpipe
Exhaust - AWD/RWD LTG Downpipe

This is ZZP’s first exhaust part that we released for the Cadillac ATS and CTS 2.0 turbo.  This is the same part that is installed on Matt’s car which is the worlds fastest stock turbo ATS - we run what we sell. It is fully 304 stainless steel, so it will outlast the car and don’t forget the amazing TIG welding that ZZP is known for. Typical gains are from 10-20whp and quicker turbo spool. No tuning required, although it is recommended, and it bolts in place of the stock piece.  The stock downpipe is 13.5 lbs, while ZZP's catted pipe is 7.2 lbs.

We use a premium 400 cell cat which should not set off any check engine lights, however when changing any catalytic converter in new cars you run the risk of a P0420 code. 

We are currently offering $200 in store credit to purchase your stock catalytic converter back from you. If you're interested, take a photo of your stock downpipe and email it to We will provide prepaid shipping labels for domestic (U.S.) shipments. 

Revised 02/2020 with change of rear O2 placement to avoid any transmission line interference. Downpipe now includes 90* spacer for optimal sensor placement. 

Fits the following 2.0L LTG vehicles: AWD/RWD: ATS & CTS, & Camaro.
Does NOT fit Regal or Malibu, however we do offer the FWD version here: FWD LTG Downpipe/ O2 Housing

CLICK HERE for Digital Install Instructions


Our downpipes come with a high flow catalytic converter that is 48 state legal. Our catalytic converters will not pass California or New York state emissions. Please contact if you have any questions.

Exhaust - AWD/RWD LTG Downpipe
Exhaust - AWD/RWD LTG Downpipe
Exhaust - AWD/RWD LTG Downpipe
Exhaust - AWD/RWD LTG Downpipe
Customer Reviews
4.9 Based on 204 Reviews
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Joe A.
United States United States

Down pipe

Install easy works good Price good.

Peter R.
United States United States

ZZP ATS downpipe/with cat

Overall I'm happy. I can absolutely feel the power difference and it's made the car more enjoyable to drive. If you worried about sound its made my car a touch louder nothing serious, super tame. Two issues, the included bracket it's simply to long and I had to drill my own hole to make it fit no big deal tho if you have a drill it's an easy mod. My car also threw a CEL more than likely a P0420 came on shorty after the install haven't made and attempt to resolve it so we'll see how that goes

Lou B.
United States United States

Awesome. Down pipe

Beautiful. Part. Very nice. Packing. Organized. And all parts there. To install

Dakota G.
Canada Canada

Downpipe for Camaro 2.0 turbo

Easy install, there are a couple of videos on youtube to help. Only difficult part was unbolting the stock pipe from the manifold. The sound is very noticable with the new downpipe and I cant wait to get a new exhaust system to compliment the downpipe.

Joseph R.
United States United States


Been running it for three months no problems sounds great, looks good,And I am very happy with the craftsmanship of this product