ZZP 2.5 inch Stainless Cobalt/Ion Downpipe

Exhaust - ZZP 2.5 Inch Stainless Cobalt/Ion Downpipe
Exhaust - ZZP 2.5 Inch Stainless Cobalt/Ion Downpipe

ZZP 2.5 inch Stainless Cobalt/Ion Downpipe

207 reviews
Transmission
Regular price $289.99
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  • In stock, ready to ship
  • Inventory on the way

This fits on all Cobalt/Ion/G5/HHR/Pursuit models with the 2.0L supercharged, 2.2, & 2.4L naturally aspirated cars. Will not fit '08+ turbocharged models.

Featuring:

  • Stainless Flex
  • Stainless Flanges
  • Stainless spun metal cat
  • Stainless piping
  • O2 bung and bung plug for wideband O2 sensor

The stock pipe narrows down to a 2" hole before flowing into the cat. This is very restrictive causing KR and a loss of HP. Our 2.5" stainless bolt in downpipe remove all of the stock downpipe restrictions. No more 2" inlet, no more O2 bung dimple. By doing so gains of over 15HP can be had along with a substantial drop in KR. Most users can drop a pulley size after adding our downpipe. Plus our 2.5" bolt in mates to the stock or 2.5" cat back exhaust system without any welding.
Transmission: This determines if you need a downpipe for an automatic or manual transmission.

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 customerservice@zzperformance.com if you have any questions.

We are currently offering $100 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 Henry@zzperformance.com. We will provide prepaid shipping labels for domestic (U.S.) shipments.

Customer Reviews
4.9 Based on 207 Reviews
5 ★
91% 
189
4 ★
7% 
14
3 ★
2% 
4
2 ★
0% 
0
1 ★
0% 
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JA
01/19/2023
Jon A.
Spain

Amazing! I install the manifold and cat and the car runs much much better. Also I install the sway bars and the car handles 100 time better. Good quality and service!

AG
12/23/2022
August G.
United States United States

Out f'ing Standing

Great product, perfect sound. Exactly what I wanted. The installation was easy as can be. ZZP you guys know your stuff. Thank you....very fast shipping, arrived early. I'm am 100% satisfied.!

TC
11/06/2022
Tyler C.
United States United States

Amazing

I got the downpipe, shorty header, and cat back 2.5 inch exhaust and I love it, so much better sounding, looks better, and has a noticeable difference in power. I will say tho a lot of reviews says didn’t come with gaskets but mine did, they were actually folded up inside the shipping paper so if I didn’t find it by accident I would have thrown them away along with the paper and thought there wasn’t gaskets as well, so I would open all the paper and check, the header gasket came bent because of it but luckily it wasn’t bent where it was important so it didn’t hurt it. But all in all it’s a great set up and I love it just make sure to check all the paper

DN
10/23/2022
Denise N.
United States United States

Great Service

The site is straightforward and shipping was fast. My part was easy to install on my car and sounds amazing. Will be buying something else soon!!!

J
10/09/2022
Jay
United States United States

Awesome

Very high quality downpipe, bolted strait to the stock resonator and stock manifold. Sounds much deeper than before (running with muffler delete). Couldn’t be happier. Between this and the ZZP intake I got a few years back I am a very happy customer. Well worth the money.

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