Help on how to add hp to 525
Former Vendor
Joined: Dec 2007
Posts: 3,624
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From: Anaheim, CA
My Ride: F10 M5
Model Year: 2013
ESS Normal Aspiration optimized ECU software is a result of 100's of dyno runs and exact calibration of all parameters to allow maximum performance gains with improved driveability/fuel consumption and stock engine longevity. RPM limit is increased to 6700RPM , and top speed governor is removed.
Throttle response programming is greatly improved over stock.
Power is increased.
Throttle response programming is greatly improved over stock.
Power is increased.
Senior Members
Joined: Dec 2009
Posts: 1,518
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From: 626 & 909 (Rowland Heights, CA)
My Ride: check siggg
ESS Normal Aspiration optimized ECU software is a result of 100's of dyno runs and exact calibration of all parameters to allow maximum performance gains with improved driveability/fuel consumption and stock engine longevity. RPM limit is increased to 6700RPM , and top speed governor is removed.
Throttle response programming is greatly improved over stock.
Power is increased.
Throttle response programming is greatly improved over stock.
Power is increased.
Contributors
Joined: May 2009
Posts: 10,496
Likes: 2
From: SoCal
My Ride: 2008 550I LOADED, all options except HUD and NV
Depends on the year, they don't make one for the M54 engines, just the N62 (2006-07) cars. I checked, because $279 for a tune is pretty damn cheap and Berger has a good rep. Unfortunately, they don't make a tune for my car so ESS it is for me
Former Vendor
Joined: Dec 2007
Posts: 3,624
Likes: 0
From: Anaheim, CA
My Ride: F10 M5
Model Year: 2013
Contributors
Joined: Dec 2007
Posts: 5,972
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From: The State of Southern NJ!
I"m going to take a different approach ... instead of emptying your pockets looking for a few extra HP from your 525 ... sell it to someone whose needs are more modest and find yourself a clean pre-owned 530, 535 or 545/550. You might (not knowing the year or equipment on your 525) find yourself dropping back a year or two to pull that off but in my opinion if you're looking for the HP that might be the sure fire way to do it.
Senior Members
Joined: Aug 2010
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also, could you do it and still have warranty coverage, would the dealer know?
Senior Members
Joined: Dec 2008
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From: San Antonio
Hello, im new to the forums 
I would like to get some info on what i need to buy to turn my 525i (215 hp) into 530 (265 hp)? They share the same engine so i would imagine its not that difficult correct me if im wrong. Also how much would it cost and if anyone in here that did it? Thanks for all ur help u guys rock!
I would like to get some info on what i need to buy to turn my 525i (215 hp) into 530 (265 hp)? They share the same engine so i would imagine its not that difficult correct me if im wrong. Also how much would it cost and if anyone in here that did it? Thanks for all ur help u guys rock!You will fool almost everyone in the world except the guy passing you. Might even fool yourself if you are persistent.