i need a high flow cat for my car 2005 2.5rs, what are some of the better brands and what are the best for the buck?

 

Stromung.

www.daddysscp.com
www.boxer4racing.com


There's also TWE: www.techworkseng.com

I have a Stromung in my car. Very nice, uses stock header/exhaust routing. So it bolts right up.
Power addition is probably not huge, but it certainly opens the car up. Adds a *lot* of exhaust noise, though.

=S2=

 

I like magnaflow, I just got a universal in the diameter I wanted, welded right in, no problems.

 

Do the Highflow's cause a CEL?

 

yes, but you can fix it with a mechanical fix

 

thanks guys preciate it

i think i'm going to go cat-less! then when emissions time comes around swap it out!

 

they don't necessarily throw a CEL.

 

(show my ignorance alittle more) whats the fix, i was thinking this, even talked to a local tuner shop, where the guy said i can prob get muffler shop to make me a catless peice for cheap if i explained to them it was a track pipe and i didn't want them to install it. But I was worried about the CEL.0

 

http://www.gruppe-s.com/Subaru/subex.htm


Bottom of page.


sean

 

so no matter what i get high flow cat or catless i'm still going to get a CEL unless i buy that piece?

 

Thanks sean

I think they are saying some high flows won't, but for $14 it seems like a great thing to have just in case.

 

You may or may not throw a CEL, you won't know until it's in.

I've talked to people who failed emissions in CA with cheaper cats, then passed fine with a magnaflow, so that's something to keep in mind.

 

yeah i'm not to worried about emisions cause i'm going to keep my stock cat and just swap it out when i have to go plus...i joined the army and if i get shipped overseas then i won't have to worrie about emisions, unless i go to iraq or afgan. (cause i won't be able to take my car there obviously)

 

i have a question? how restricting is the stock cat? btw i just got my borla headers in the mail today going to put them on tomorrow but is their welding jobs always been s**ty???

 

From what I've read i guess a highflow can net around 8-10 and a catless 10-12. Anyone have more hands on results?