127 Reviews

ZZP 2.5 inch Stainless Cobalt/Ion Downpipe

SKU: ZZ-E25DP-A-X-BP

$149.99 Sale price

Transmission
Catalytic Converter Option
Regular price $149.99

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.

Includes:

    • Stainless flex
    • Stainless flanges
    • Stainless Spun metal cat (if selected)
    • Stainless piping

Our downpipes are made from stainless steel. No worries about rusting or paint flaking off. It costs a little more but we feel it's worth it. All welding is done to the strictest of standards and bears a professional finish. Weld quality is higher than any other downpipe manufacture. We promise our welds to be 100% leak free. Even the flanges are stainless, which isn't something most companies can say. When shopping around, ask if the downpipe is 100% stainless, ask for a close up picture of their weld. You'll know right away, what true quality is and what it isn't.

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, and the choice to come with or without a catalytic converter. 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.

How to order your downpipe:

Transmission: This determines if you need a downpipe for an automatic or manual transmission.
Catalytic Converter Option: This determines if your downpipe will come with a catalytic converter or not. We have a high metal 400 cell cat that should not set any CEL lights. There is the Off-road option which does not come with a cat, but it is NOT legal for street use. The Off-road option comes with an o2 bung for your rear o2 sensor.

Cat Coupon

ZZPerformance will give out a $50 coupon code for returning your stock downpipe to ZZP for catalytic converter recycling. You don't even have to pay for return shipping! Simply email a picture of your cat to Henry@ZZPerformance.com and if it is OEM we will email you a UPS prepaid return label. Then put your old downpipe (or just the cat) in the package that the new one came in and drop it off at any UPS shipper (excluding the catback box due to being oversized). Then we'll email you a coupon code good for $50 off of your next ZZP purchase! Returned units can be cut up but the OEM converter must be intact. Already bought our downpipe? We'll still offer the $50 coupon code but you'll have to pay for the return shipping.

Note: We can only issue prepaid shipping labels to people in the lower 48 states, this excludes Canada, Hawaii, and Alaska.

To take advantage send to:

ZZPerformance
Attn: Cat Credit (Order #)
2450 28th ST SW
Wyoming MI 49519

For everyone: Include your original order # and email address to send the coupon code. Write down your return tracking number for your records!

You are viewing a product listed on the following platform:

Ecotec

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.

Includes:

    • Stainless flex
    • Stainless flanges
    • Stainless Spun metal cat (if selected)
    • Stainless piping

Our downpipes are made from stainless steel. No worries about rusting or paint flaking off. It costs a little more but we feel it's worth it. All welding is done to the strictest of standards and bears a professional finish. Weld quality is higher than any other downpipe manufacture. We promise our welds to be 100% leak free. Even the flanges are stainless, which isn't something most companies can say. When shopping around, ask if the downpipe is 100% stainless, ask for a close up picture of their weld. You'll know right away, what true quality is and what it isn't.

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, and the choice to come with or without a catalytic converter. 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.

How to order your downpipe:

Transmission: This determines if you need a downpipe for an automatic or manual transmission.
Catalytic Converter Option: This determines if your downpipe will come with a catalytic converter or not. We have a high metal 400 cell cat that should not set any CEL lights. There is the Off-road option which does not come with a cat, but it is NOT legal for street use. The Off-road option comes with an o2 bung for your rear o2 sensor.

Cat Coupon

ZZPerformance will give out a $50 coupon code for returning your stock downpipe to ZZP for catalytic converter recycling. You don't even have to pay for return shipping! Simply email a picture of your cat to Henry@ZZPerformance.com and if it is OEM we will email you a UPS prepaid return label. Then put your old downpipe (or just the cat) in the package that the new one came in and drop it off at any UPS shipper (excluding the catback box due to being oversized). Then we'll email you a coupon code good for $50 off of your next ZZP purchase! Returned units can be cut up but the OEM converter must be intact. Already bought our downpipe? We'll still offer the $50 coupon code but you'll have to pay for the return shipping.

Note: We can only issue prepaid shipping labels to people in the lower 48 states, this excludes Canada, Hawaii, and Alaska.

To take advantage send to:

ZZPerformance
Attn: Cat Credit (Order #)
2450 28th ST SW
Wyoming MI 49519

For everyone: Include your original order # and email address to send the coupon code. Write down your return tracking number for your records!

Customer Reviews

4.9 Based on 127 Reviews
5 ★
90% 
114
4 ★
9% 
11
3 ★
1% 
2
2 ★
0% 
0
1 ★
0% 
0
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AC
11/07/2019
Anthony C.
United States

Love it!

The sound is great and I’m happy!

AO
11/04/2019
Alex O.
United States United States

2.5 cat less downpipe for my Redline

Quality is second to non. I had originally bought a 3 inch but it was to opened up for my application so her I am with the 2.5 so far I love it. I'll be adding g a new muffler in a couple weeks. Enjoying it for now..

CD
11/03/2019
chad d.
United States United States

Product was great, Fit perfectly

Product was great, Fit perfectly

J
10/18/2019
Jaime
United States United States

Nice Downpipe excellent sound

Got this downpipe a couple of weeks ago, well was an easy install. The sound is nice a little louder and has given my 06 HHR a good pep on the start. Im definitely going to be ordering the S/C kit in the near future. Thanks Tyler for the information you sent me.

AE
10/17/2019
ali e.
United States United States

Great sound down pipe to my catback system!

I recently installed the Downpipe along with cat-back 2.5 inch muffler system on my Cobalt to replace the broken Downpiple and rusted muffler. I absolutely love this system as it has changed both the sound and performance of my Cobalt LT. I would definitely recommend this for anyone replacing their Downpipe to enhance their muffler system. The only recommendation I would have is to include the gasket from the header to the manifold would have been great if it was included.

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