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Old 01-20-2011, 01:05 AM   #5
907mge
20psi boost
 
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Join Date: Dec 2009
Location: Harrisburg
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I can think of a few things:

Manual trans.

Best ratio rear diff you can get to keep the rpms down at highway speeds.

Lowering the car will help reduce drag by moving the wheel up towards the car reducing exposed tire.

Actual Cold air intake, not one sucking hot engine air.

Less restrictive exhaust if you keep your foot off the pedal.

Tires with low rolling resistance and lighter wheels.
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