I know someone has tried this.

I was wondering if only putting a high flow cat on my car will change the tone at all, or give it some performance gains? Which one would you recommend.

Anyone have any opinions?

 

Yeah you might of gained MAYBE 5hp if that.

You should have done catless. i think its around 8 to 12 hp the 5hp LOL

 

I think it's been proven there is virtually not much difference between a well built high-flow cat and catless...

But to each their own...

 

I haven't bought anything yet, just looking for feedback. Would a highflow change the tone at all if any?

 

Yes it would get quite louder in most cirumstances...

You can check out ZZP or Rebel Auto Worxs or Vibrant... they all have highflow cats. or downpipes really..

 

if i was you i would go catless..

 

i dont understand why people suggest this...

possible emmisions issues... raspier tone... louder... and maybe 2 hp difference at most not worth it

IMO high flow cat is the way to go

 

Yah, like I said, Not much difference.

Also, you would need to tune for catless... or you'll get some codes for sure.

 

I just like catless alot.. and my exhaust is deep as **** at idle and when im driving to about 4500 rpms and then it starts to get loud but not RASPY!