Forums Forums General Discussion Buy and Sell BMW Booster Plug Reply To: BMW Booster Plug

#20476

Pedro46
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I would think even better, I have the stock exhaust/air filter and it definitely made an improvement … probably more in the smoothness of roll on/roll off. I sent the ECU over to the UK to Hill M/C’s for a remap and it DEFINITELY has a lot more power now (but the remap was $600), still has the standard exhaust but with K&N filter … exhaust is next on the list! 🙂
They say it runs about 6% richer with the Booster Plug