the OTHER Supra Site

[supra_91]

Originally Posted by scruffboy

Hey,

I see in your profile you installed a header. Do NA's have a separate downpipe? I installed a Magnaflo Cat with 2 1/2" openings as I was contemplating an exhaust upgrade. Are you happy with the way yours turned out? Is it a really noticable difference? What did you replace the resonator with? I was thinking of using one of those "glass packs" and then the muffler, using 2 1/2 inch piping. Any input you have would be appreciated.

Thanks,

Scruffboy

i installed the header which comes with an extension pipe that connects to the cat. you can notice a difference and it made the exhaust note deeper. i have a full 2 1/2" exhaust with a test pipe, no resonator, and a muffler. although, you have to make some modifications the new O2 sensor mounting place because i'm having gas mileage problems but as soon as i fix it i'll let you know and tell you how it's working

how often do they check for emissions? i live in Illinois