Has anyone tried this yet ? + 50 ft lbs and 20 HP seems like big gains...

http://www.altaperformance.com/pages/show/158#S1JCW

 

Try looking in this forum:
https://www.northamericanmotoring.co...-cooper-s-191/

There are several large threads on it already.

I have it. It's freaking awesome. Super smooth and civilized around town but anytime you press the pedal down you awaken a beast under the hood that does a pretty good job of shoving you back into your seat and putting you into illegal speeds near instantly.

Seriously a very good product. I'd highly recommend it to anyone with an S or JCW.

 

Direct links to the major threads already in progress.

https://www.northamericanmotoring.co...cu-tuning.html

https://www.northamericanmotoring.co...rt-thread.html

https://www.northamericanmotoring.co...ne-review.html

https://www.northamericanmotoring.co...pressions.html

 

Makes me want to think about an R56 (in addition to my R53).

 

honestly, when i bought my 09 JCW i loved it. but as i drove it more and more i said to myself "jeez, i put a lot of money into this car, i wish BMW gave us a bit more." I started having second thoughts. After i put the stage 2 tune from Alta AccesPORT on my car, ALL of those second thoughts dissappeared. my car is simply a beast right now. I can only imagine my car at stage 3 with water/meth injection.

The face of my friends after proving them how fast my mini is after the tune is simply priceless. no more second thoughts for me, instead, all my friends have second thoughts about their cars