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0408tur Projmsp08 Z

Comparing the cast, two-piece S-pipe to the one-piece, ceramic-coated iON piece, it's easy to see why there'd be big gains in swapping downpipes.
Project MSP: Ion T-Back Exhaust

Comparing the cast, two-piece S-pipe to the one-piece, ceramic-coated iON piece, it's easy to see why there'd be big gains in swapping downpipes.  View Related Article