iv been thinkin about getting a xtc 2.5in downpipe w/ the high flow cat on it. my question is does anyone have this on there car and if so will it throw a code. i am assuming that it will but not a 100% sure i wouldent be surprised if it dident. just want to no cuz when i get it i have to plan to a tune also so i can pass inspection.

 

I, have it. And yes it will throw a code. Other then that good downpipe for the money.

 

x2 i have it...makes a droning noise...if that makes sense.. i had a fairly quiet exhaust setup and this thing made it a bit louder.. mine threw about 6 codes, i just finished clearing them with hp tuners tho.

edit. mine's catless

 

I've got it and I love It. It threw a code for me after 3000 miles but I unplugged the battery when I had to take it in for service work and it went away. Since then I just had my trifecta tune take care of the code for future purposes. Great downpipe and great quality. I've got the 2.5 with high flow vibrant cat

 

thanks for the feedback everyone

 

I haven't done this myself and may try when I go to a larger downpipe: Others have posted that using 2 sparkplug anti-fouler plugs, drilling them out with a 1/2" drill bit, putting them together, installing it in the O2 bung, and installing the O2 Sensor in those alleviates the CEL.

https://www.cobaltss.net/forums/show...ght=antifouler

https://www.cobaltss.net/forums/show...ght=antifouler

 

thanks ill have to look into it.

 

i tried using 2..didnt work... just an fyi...need to try one next. if u use two there's not enough space and ur 02 will get jacked up

 

Did it not work because you couldn't get the O2 sensor to fit or did it not work because you kept getting the CEL?

Thanks....

 

02 fit super snug... i tried to remove it and screwed it up.. either way, with it on there correctly, the cel came on anyway. i ended up yanking the o2 and just finished clearing the codes with hp tuners yesterday

 

You're the first poster that said the antifoul plugs don't work. I'm going to create a post on this in the tuning forum...look for it and provide your input please.

thanks

 

ive seen others on here say it didnt work but sure no prob.

 

those antifoulers don work to well...find someone to tune your car and elimate that code..it will pop up...it took me about 1,000miles to come up

p0420..FTW!

 

1 code? i threw 6

 

6 codes for a downpipe..which ones came up?yeah i only had 1.i win! lol

 

umm cant remeber.. all of the heat codes on the second 02. i ripped mine out so that was probably an issue.

 

yeah prolly thru off more cuz of that..

 

i know ark sells the cel elminator ive heard it works, pretty much just like the spark plug ani fouler trick its an extension for the 02 sensor to take it out of the way of the flow of exhaust.

 

if u move it out too far u get that heat inefficiency code tho.

 

the ark cel eliminator wont fit to well.

 

Is it possible to make a "bump" in the floor pan with a body hammer to make additional clearance?

 

i mean you can do it..i wud just get the code disabled.

 

The only reason you should get a heater performance code is if youve got a bad sensor or wiring(or ecm of course)

 

Maybe you guys in the Northeast have people that can tune hiding behind every tree, but us people that are outside of your area do not have tuner knowledgable people anywhere

 

At least you can use HPTuners if you wanted to, try finding someone skilled with LS2Edit on the L61.

I may crack and just get a Trifecta tune, but if I can hold out til I get a good paycheck I'll be the LS2Edit guy

Fuel is down to $2.03 here. people need to start fixing your cars again, WTF, I need to eat(well mod my car....) too.