Quote:
Originally Posted by Terry @ BMS
I've yet to hear of a 335i motor blowing up, and I'm pretty in the loop. The worst I've heard of is a wastegate failure, and just recently I heard of a turbo leaking oil (not one of my tuners!). Generally if you keep the boost levels mild and taper the boost down at high RPM, your motor will live a long happy life.
As I said earlier we've sold around 500 of the JB2s and not a single issue has come up that was related to the tuner. No check engine lights, no limps, no warranty denials, etc. But when you start to get in to our race tunes then you open yourself up for more trouble. So stay with the JB1 and JB2 for reliable trouble-free performance gains.
Intakes make a lot of sense, especially at higher HP levels.
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Terry,
I'm a UK 135i owner who's keen to find out more about the JB1/JB2 route. As far as you know, will your tune work on a UK/European 135i???
Mad Chemist.