erock

Claims to add 10-15hp to the 98-02 Accord 4cyl & V6 models....

http://cgi.ebay.com/ebaymotors/ws/eB...tem=1865521115

Isn't there someone on this board who has something similar?

acuraboy_RENAMED

yeah i've heard of hi-flow cats. put one on my truck a few years back and there was considerable increase in seat-of-the-pants umph.

Nashua_Night_Hawk

Illegal to repacle before 50 kmiles and if the Cat Conv is not broken.

acuraboy_RENAMED

damn...totally fogot about that...

and don't think that this is something u can do and then just chuck the old cat in the trash...if it's ur house trash those guys will rat u out.

JRock

I would think on n/a 4-6cyl cars it would lose torque.

F/I cars or big V8s can gain from hi-flow cats though.

CLS2001_97124

I agree with JRock. I spoke with a local mechanic, and he told me that most cars with displacements smaller than say like a 4 liter will actually loose low end torque when a high flow systems are installed. Therefore, I think maybe that's why the Comptech exhaust is only axle-back, and it works so well. IMO.

scalbert

BTW, we already have a fairly low restriction catalytic converter.

Also, if a converter is restrictive there can be definite gains by going to a free flowing unit on a 4 banger and even gain low end torque. But that is on a turbo application with the cat downstream of the turbine...