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hmm, these are nice. i heard a 400 with these and mufflers removed it sounded beast mode. i think these are about a 20hp gain. if i can move some money around and free up a $5 i will return. if not, GLWS
hmm, these are nice. i heard a 400 with these and mufflers removed it sounded beast mode. i think these are about a 20hp gain. if i can move some money around and free up a $5 i will return. if not, GLWS
there's a YouTube vid of a GS with headers x pipe and muffler delete and sounded amazing .
. Watching these...
