Thread: Custom exhaust
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Old 08-21-2007, 02:38 PM
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svxcess svxcess is offline
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Quote:
Originally Posted by 94SubieSVX
Yeah I liked the way you did yours that's why I thought I would use it, minus the AR25 resonator like in the original post but with the flowmaster muffler instead of stock. Do you think that would be a good setup? I don't want it to be quieter than stock. I want it to sound like Guyver was saying his sounds.

The flowmaster would be a louder system. I still think you need some sort of resonator (expansion chamber) behind the cat to prevent annoying resonance around 2500-3000rpm.


Also, the 2" pipes leading up to the resonators have to have the O2 sensor thing welded into it too right?

Yes they do. When I had new headpipes fabricated, they welded o2 sensor bungs in the stock locations. The sensors read the exhaust BEFORE they get to the resonators/pre-cats.
I have the OBD II system which has the third O2 sensor. rather than have it installed in the rear of the cat, I had it installed in the pipe ditectly behind it. A cleaner reading and esaier to replace if necessary.

Also know that the increased area of 2" headpipes will rob you of a little low-end torque and back pressure, but give you better top end, due to a less restrictive exhaust velocity
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