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Very nice...I'd love to hear them too!!! I am in Miami and seriously considering dp's but I am worried about the added noise on long trips, etc.. How much louder is it say cruising at 70 mph on the highway?
You are running otherwise stock exhaust? So you "felt" a increase in performance with the dp's as the only change? What map are you running on the JB4? Are you still on run flats?
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'09 135i - Step - Sport - M.Blue - JB3 - Eibach Drop -Alufelgen SF-71 for 1 Series
'08 535i - Step - Sport - JB3 - BMS Air Filter - HKS BOV/Pipe - Aquamist water/meth injection - EuroLights Yellow ION Foglight Bulbs -
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