Software engineering and ECU Tuning at its best because only the best will do when it comes to calibrations.



Software engineering and ECU Tuning at its best because only the best will do when it comes to calibrations.




APR’s sole mission is to engineer only the highest quality tuning solutions for Volkswagen, Audi and Porsche vehicles ensuring the enthusiast the ultimate driving experience while consistently providing the enthusiast the ultimate in customer care and support. This mission runs parallel to Excelerate Performance’s values. Thus, we are proud to be a performance partner with APR and distribute their product for the entire Northeast US. They have put forth the effort to research, engineer, design and manufacture the best products on the market and we are confident that they can deliver the best results for our customers.


We have very carefully selected our software partners and affiliates in order to create various custom and production software for your vehicle. Every vehicle's calibration is designed around your upgrade path and modification list. Once we have this information we get to work and begin a thorough process of deciding what is best for your goals. Based on our personal and professional experience with these software engineering companies, we then decide on a calibration company. This will ensure we have the right teammates to help you achieve maximum potential, safely.


Dinan’s industry leading warranty program, quality products and solid engineering have helped to make Dinan an almost household word among BMW driving enthusiasts. For over three decades, only one name has remained at the top of the BMW performance parts industry. Own a vehicle that is still under warranty but want to yield some more power? Dinan has you covered by matching the factory BMW warranty on all of its products.

Active Autowerke has built a lasting reputation as a leader in custom BMW tuning and accessories. Their expertise in BMW performance is unmatched by most and their product offerings run the gamut. Looking to maximize the potential of your BMW? Active Autowerke is here to assist us in taking your build to the next level.

Have you added a supercharger to your Mercedes? Maybe you installed downpipes on your BMW, OE Tuning offers many solutions for the European Tuning Market. OE Tuning has built a lasting reputation as a leader in custom Mercedes tuning and has slowly improved their reputation in many other European marques such as BMW, Porsche and more. Their expertise takes a step further as a trusted supplier to top tier OEM and Aftermarket manufacturers such as Magnuson.

In late 2016, Excelerate Performance became Connecticut’s distributor for Malone Tuning Ltd. Malone tuning specializes custom performance calibrations for modern VW, Audi, BMW, Mercedes Diesel and Gas power vehicles and much more. We really needed a solid calibrator to cover the diesel tuning side of the market, and Malone has filled that void for our clients very well.

With a slogan like “Worlds Fastest Audi’s”, you know JHM mean business. Providing ECU and TCU software for various Volkswagens and Audi’s, JHM specializes in Tuning Audi’s 4.2L B6/B7 S4 and 4.2L Direct Injection B7 RS4 and B8 S5 engines as well as 2.0T FSI/TSI powered Audi’s. JHM also provides all in one solutions that range from supercharger and turbo kits engineered, developed and built in house. Supercharger kit applications for 4.2L Audi applications and turbo kits for the B7 2.0T FSI applications are not all JHM does either. They have produce their own clutch/Flywheel kits, fuel systems, and much more.

United Motorsport has been creating custom calibrations since the late 1990’s and specializes in Audi and Volkswagen ECU, TCU, and Haldex performance software upgrades. UM specializes in distinctive platforms like 12v, 24v, 3.2 R32 VR6 and VR6 Turbo applications, MK4/B5 1.8T from stock turbo to big turbo applications, 2.0T FSI through present day MQB Gen 3 TSI engines, 5 Cylinder (90’s Quattro cars, MK5 07k + TTRS 07k) and much more. A great option for those who like to assemble their own hardware without being tied to specific software

Kleemann and Mercedes are two names that go hand in hand. Kleemann has been developing forced induction upgrades, drivetrain hardware such as differentials, and ECU Tuning Calibrations for Mercedes & AMG for decades. Kleemann can provide additional power via K-Box plug and play tuning boxes and/or full ECU flashes (depending on application) for the most popular M113, M272, M275, M278, M175, M157, CDI/BlueTec, even 4 cylinder applications. Whether they are Naturally Aspirated, Supercharged or Bi-Turbo, Kleemann likely has a solution for you.

KTuner is an ECU research and development solution for late model Honda and Acura J, K, L, and R series applications. KTuner allows the ability to properly tune ignition, fuel, cam angle, boost cut, expanded boost tables, anti lag, 2 step, knock tuning and additional supporting parameters required to meet emissions standards for most Hondas and Acuras from 2002 and up. Paired with essential data logging parameters at high speeds, KTuner can be utilized to test and develop multiple vehicle platforms in the development of emissions legal aftermarket performance products. KTuner also offers a KTunerFlash V2 hardware unit that stores multiple tunes, offers data logging, and Bluetooth and USB connectivity.

Utilizing OEM Honda ECUs, Hondata is infamous in the industry for expanding the capabilities of stock ECUs and adding features for options such as forced induction. Covering most Hondas from 1992 up, Hondata has built a lasting impression on the Honda community by offering many solutions such as harness adapters, K Pro, Flashpro, Injector Drivers, and more. Plan on building your Honda? Hondata may be right for you.


This page will be updated in the future to update information and add services specific to BMW. If you would like to see something added or have ideas, we would like to hear from you.


What Are People Saying About Us?

Tristan says:

"Words can’t express how satisfied I am with the service provided. Customer service is top notch. Direct, accurate and most importantly honest. I also have to mention that their waiting area is well organized and clean. Excelerate performance was recommended by a good friend and I myself would also recommend this place. The almost two hours drive it took me to get there is well worth it. If you need a trustworthy place. Look no further."

What Are People Saying About Us?

William says:

"Simply the best shop in the Northeast for all your VW/Audi needs. I have nothing but good things to say, keep up the great customer service, you have made me a customer for life."

What Are People Saying About Us?

Andre says:

Excelerate is awesome for all kinds of work on German cars. I had work done on my Audi and will definitely be back for more. Their mechanics go the extra mile and seem more qualified than most dealership services. I highly recommend them!

What Are People Saying About Us?

Austin says:

Spoke to the service manager about a problem I’m having with my 2010 Volkswagen Passat. The gentleman I spoke to was extremely knowledgable and helpful with my problem. I’ve spoken to many repair shops about it and nobody describe it as well as these guys. I know have a better idea of where to go from here just from speaking with him for about 5 minutes. Great customer service. Sad I’m across the country or I would 100% bring my vw here!

12 Sycamore Way
Unit 1 & 2
Branford, CT 06405

Call Us:  203-483-6100
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