[Kcrawler]

Downey Performance Cat back... or custom job at cheap shop?
I am leaning towards custom but what should i use for performance? 2.25 pipe with what high flow cat.. what exaust? (put a hole in my muffler so..)

 

[DRM]

go custom.. and anything over 2" won't give additional performance for Toy motors.

 

[Heavy Metal Toy]

whatever's cheapest

 

[soopatoy]

i just did a custom 2 1/4" exhaust with a magnaflow muffler

 

[mwoodruff]

2.25 is typical for Toyota's.

 

[toydawg85]

2.25'' and hi-flow worked well 4 me.

 

[Raptorman57]

I've got a Thorley tri-y header,2 1/4 tubing,high flow cat and 2 1/4 Flowmaster and I love it. Sounds great and tach's up a little quicker than stock. Like DRM said anything over 2" won't gain performance on a Toyota motor. I tried 2 1/2" and sound wise it was great but there was not enough backpressure. I feel 2 1/4" gives a little more back pressure and a little better sound. I've tried 2",2 1/4" and 2 1/2" and I think 2 1/4" works and sounds the best. With 2 1/4" I didn't notice any gain or loss,power wise, over the 2" but it's got a little deeper tone to it.