« Reply #7 on: August 26, 2003, 10:19:08 pm »
the turbine wheels hanging out in the exhaust stream provide all the backpressure our motors ever will need.
3" downpipe exiting behind the front wheel would probably be ideal for a built motor.
Flavian, they are pretty loud. Mine is a stock 1g O2 with a 3" mandrel bent all the way back. No cat, Borla muffler. It sets off car alarms, shakes windows, causes lots of heads to turn. And that is at idle/cruize
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