RPI Full GT Exhaust Review/Dyno
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03-10-2009, 07:52 PM
Drives: '14 F13 M6, '12 Ram Cummins
Join Date: Aug 2007
Originally Posted by
Are these gains after or before tuning?
Awesome gains and it sounds like an awesome package both quality and price wise!
Absolutely no tune and this was all done on a Dyno Dynamics, not an inertia dyno.
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