Quote:
Originally Posted by fliprayzin240sx
You're only supposed to close it when you have to...ie coasting up to a cop. Wasnt meant to muffle exhaust sound, just slow the flow out...less exhaust coming out, less noise. Do not drive it with it close...it wont even build up RPM since itll choke the engine out.
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i don't drive around with it closed.
I close 3/4 way on local, below 2K RPM.
once i hit the freeway, cruising 2900 RPM, i open it up more.
will this be ok?