LNF Stainless Downpipe
- 100% stainless steel construction
Interlock flex section
Precision cut flanges
Angled o2 bung for rear o2 sensor (when selected)
This is an easy bolt in upgraded 3" downpipe for your '08+ Cobalt/HHR SS TC.
Our downpipes are made from stainless steel and fabricated using the strictest welding standards. The professional finish prevents any exhaust leaks, and the 3” diameter decreases backpressure from the engine, allowing you to squeeze every ounce of horse power out of your engine. The inclusion of stainless-steel flanges shows our commitment to high quality products that will last the lifetime of your car. Pair with the 3 inch LNF Catback Exhaust system for decreased backpressure and maximum performance.
Pair with the 3 inch LNF Catback Exhaust system for decreased backpressure and maximum performance.
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:
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!
Will it throw a CEL since it would be a higher flowing cat?
Do I need to get the angle O2 adapter for clearance or will the O2 clear with out it?
Can an angled O2 bung be added?
Lastly, what quantifiable improvements over the stock dual cat downpipe can I expect with the aforementioned cat selection?