BMW Custom, In-House Tuning

Product Description


Custom Tuning Starts at $895


BMW In-House Tuning

Using our own custom tuning tools, developed in-house, we started tuning on our own shop cars to develop what has become one of the industries top tuners of BMW.  We want to add power but not sacrifice your cars reliability.  We don’t stop at power alone.  Power is only one of our goals.  We also focus on low and mid-range gains as well as smoothness and throttle response.  At BrenTuning we pride ourselves on being perfectionists in our craft.  We are constantly developing new software and trying to better what is already being praised as one of the best.


Where Do We Concentrate Our Focus?

-Horsepower and Torque gains
-Improved driveability and throttle response
-Option to add “over-run burble”
-OEM reliability you have come to expect from Lamborghini and BrenTuning
-Improved 1/4, 1/2 and one mile times and ET’s
-Specific track proven and tested mapping available


What BMW Models Do We Work With?

We work with MANY models.  If you don’t see your car on the list, call or email us so we can help you.

-All “M” Models
-2 Series
-3 Series
-4 Series
-5 Series
-6 Series
-7 Series


Example of Our Work

BrenTuning dyno tuned my naturally aspirated BMW e92 M3. The only physical modification to this car is the drop in air filter. Exhaust upgrades coming soon! The full Drivetrain tune includes DCT tune (one step below GTS spec), Euro MDM and ABS, and coding.


Baseline: 274whp/280wtq


AFE Induction System
Wagner Tuning DP/ exhaust
Custom Dyno Tune by Bren Tuning


M5 Owner: @valkyrie_m5 on Instragram


2008 BMW E90 335XI with No modifications.

Just E85 mix tuned by BrenTuning
268whp / 280wtq baseline
423whp / 480wtq final



2014+ M3 and M4



2011+ M5 and M6



2002 BMW M3, Stock vs Tuned



2014 BMW X5 / 550i, Stock vs Tuned



2012 X5 / 550i, Stock vs Tuned



2006 M5 V10, Stock vs Tuned



Please Note

-This product is only to be used once instructed by our sales staff. For appointment booking and scheduling please contact our sales team directly via email at We will need to go over the modifications to the vehicle, goals, plans and more before booking any appointments.


-HP and TQ gains provided are contingent on a multitude of variables including, but not limited to: overall health of vehicle, quality of fuel provided, and modifications.


There are no reviews yet.

Be the first to review “BMW Custom, In-House Tuning”

Your email address will not be published. Required fields are marked *

I'm not spambot *

Competition use only parts are clearly labeled as competition use only in the product listing page and may only be used according to the guidelines posted on our Emissions Notice to Customers in California page