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even gutted, the precats are still restrictive because of the design of the openings and the sharp bends they take. downpipes have smoother bends and have a constant diameter all the way throughout to allow more flow. : I need to know if Downpipes are the same performance as gutted PRe-cats on a TT?
Bernie The heart of the Phoenix...

bhsiao@newssun.med.miami.edu |