Help on how to add hp to 525
10-26-2010, 01:48 PM
#12
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My Ride: 2006 titanium silver metallic
Like new 41k
Cold Weather Package
Do a search for BMS Powerbox it transformed my 525xi for $300. Exhaust, filter and RPI scoops will help also.
10-26-2010, 01:56 PM
#13
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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.
10-26-2010, 02:14 PM
#14
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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.
10-26-2010, 02:23 PM
#15
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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
10-26-2010, 02:37 PM
#16
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My Ride: F10 M5
Model Year: 2013
10-26-2010, 04:31 PM
#17
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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.
10-26-2010, 05:54 PM
#19
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also, could you do it and still have warranty coverage, would the dealer know?
10-26-2010, 06:56 PM
#20
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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.