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Old 08-05-2012, 08:59 PM
Vax Vax is offline
Officially Welcomed to the 'Fest
Location: Oregon
Join Date: Oct 2009
Posts: 175
Mein Auto: 2008 535i
Originally Posted by View Post
Glad to hear that you're happy with the COBB AP as it definitely gives the car the extra power and kick it deserves!
I've seen charts on performance gains for just adding the Cobb AP alone. I have not seen data on how much more power and torque can be gained from adding intake and or exhaust in addition. Anyone done this stepwise?

I guess same for JB4? Anyone added the JB4 first and then further tuned? Is it diminishing returns or not?
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