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Old 07-10-2012, 02:59 PM   #4510
Registered User
Join Date: Jul 2003
Location: Denver
Posts: 1,118
My Ride: '89 944 Turbo
Doubt it. The BW 3.5" exhaust seems to be one of the main keys to making 340, but it's not really street able. You should be able to hit 310-320 though.

No one is really doing custom tunes for the E46 M3, Epic is your best choice.
'89 Porsche 944 Turbo LS1 500+hp track beast
'06 Porsche Cayenne Turbo S 521hp daily driver
'06 KTM 640 Adventure
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