So for the second time in 5 years my cat is clogged and its blowing out the seal at the header. I want to get a better cat because I am sick of replacing it every couple years. I was looking at vibrant hi flow cat but it looks like it doesn't have a flange. Can someone recommend a decent hi flow cat for an 067 cobalt ss supercharged that I could just bolt up because I do not own a welder. Thanks!

 

zzp's catted downpipe. cheap, sound, and high flow cat

 

Thanks...is that completely bolt up? Would I have to get a O2 spacer? Ill start looking online for it.

 

i have it. easiest install ever ha. it comes with new gaskets, its a bolt up yes, and it comes with an o2 bung and i even has the option to get have an extra one if you have a wideband gauge or something.
the site if you dont know is ZZPERFORMANCE.COM

 

Ya..I checked it out...Chose the option with hi flow cat and gaskets...looks like its gonna come out to about 213 bucks. Not too bad. Thanks for the help!

 

no problem bud. =] youll love it. just make sure you ordered the right size input and output. if you have a stock exhaust i think its 2.5 from the header all the way from the axle. ha id ask somebody that. im pretty sure thats it tho. i think your going to want a 2.5 inch input and output

 

I have the zzp high flow cat and man it sounds soooo good..