So I have a 2010 cobalt ss turbo. I have an agency power catback and wanna buy a downpipe. I've been looking at the Megan racking downpipe and want it. But I'm scared of giving off a code. The real question is, if I put a catless downpipe on my car, will I need to get it tuned to my downpipe?

 

i have the 3" Megan on mine and I believe the car ended up throwing a code a few hours later.. It wasnt a concern though as i just tuned it out the next day

 

Thank you!! How do you do this? Did u put like a dummy sensor in the o2 bung? Or how did u do the tune?

 

I have HPTuners to use at my own disposal so its as simple as disabling the p0420 cat efficiency code.. but given you likely dont have that software I'm guessing your best bet would be to find a "defouler" to try and prevent it from throwing the code in the first place

 

Omg thank you so much!! Got any ideas where I could get that? Part source? Or a performance parts place?

And it won't hurt my car if I don't tune it to the downpipe and exhaust?

 

the thread in version of an angled bung costs $50 at ZZP
- Angled O2 bung #




and no it wont hurt the car if you are untuned

 

Preeeeem! But the Megan downpipe has a place to put the bung, it's angled already, will that work or no?

http://www.meganracing.com/product_d...d=277&catid=10

 

not sure..


why not just get a ZZP catless and the angled bung is put right in?

 

I can't acces their website for some reason, can you send me the link? And it will stop a code from popping up?

 

I have a Hahn and no code and without gsm1 or other tune just will get faster turbo spool

 

I have Turbo XS cat-less down pipe, never had a problem with it.

Here's the link to the ZZP - ZZPerformance - LNF Stainless Downpipe #ZZ-LNFDP

 

Thanks guys I think I'm gonna get the Hahn catted downpipe. Seems legit, had anyone ordered from modern performance?

 

I have the TurboXS also. Catless. Never gave me a code.

 

yes, there good, fast shipping. i have their downpipe.

 

Thanks! Really helped!!