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I paid £1,700 for an extra 46 bhp on my BMW :wtf: Admittedly most of that cost was a new catback exhaust with valves so it can be a straight pipe :eusa-shhh:
What about Meth?
I have not experience tuning the RCZ as I got as far as a panel filter when I had mine :lol:
But, a few people on the BMW forums as running methenol and getting some really decent gains. There is a guy local to me that upgraded his turbo(s) and fitted a meth kit, and it went...