2.5 inch down pipe ok?
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2.5 inch down pipe ok?
im runnin a turbonetics 60-1 with a .48 hot side, it came with a 2.5inch down pipe but my tuner says 3 inch is best. the exhaust port on the turbo is only 2.5 but my invidia Q300 duals are 3inch before the split.
should i go with the 3 inch or should i just use the 2.5inch down pipe and step up to 3inch somewhere before the catback to match up with it?
should i go with the 3 inch or should i just use the 2.5inch down pipe and step up to 3inch somewhere before the catback to match up with it?
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