Hi-Flow Cat

[jccjr1982]

Hello,

I recently bought that XTUNE 3" GSX Cat-back on eBay. The flanges on it between the cat are 2.5".

I have an old hi-flow cat I originally bought for my Eclipse RS but the flanges didn't line up correctly because the seller said it was for a 95-99 NT Eclipse but I guess it wasn't if it obviously didnt line up. (yeah I was pissed after jacking up my car and breakin' the cat bolts to find out it didn't fit)

Anyways, I was wondering is there an actual difference between DSM turbo and non-turbo cats besides the flange alignments? I'm hoping that this cat was actually meant for a turboed Eclipse and the flanges line up, but if not I'll just borrow my neighbors welder and re-align a flange on the cat so it would fit this XTUNE catback.

Yeah I know I should just get a cat eliminator downpipe but that would require me to buy a new 3" flange and weld it onto the XTUNE piping after the cat. I have this cat laying around so I thought I'd just utilize it in someway until I feel like doing a full 3" turboback upgrade.

What this really all sums up to is me asking: Is there any downfalls using a cat designed for a non turbo application on a turbo application?

 

[xveganxcowboyx]

It really depends on size and flow. If it fits and flows well, you're good to go. Worst case scenario is you're necking down, because it's too small.

If you're wondering whether there is a functional difference in cats on turbo and non-turbo cars, there isn't. Same piece of equipment. The ad probably just meant it was sized appropriately to fit a non-turbo 2G.