top of page
Workshop
JM Performance (R) Logo - Remapping swindon, Oxfordshire, Bristol, Gloucester

Industry leading vehicle programming specialists

Power | Performance | Professional Service

Get a quote - Vehicle Statistics 

Enter your vehicle details below for more information:

Sports car white background.jpg
JM Performance workshop in Swindon specialising in vehicle tuning and ECU remapping process
JM Performance (R) Logo - Remapping swindon, Oxfordshire, Bristol, Gloucester

Popular Services

JM Performance – Your Trusted Partner for Automotive Excellence

At JM Performance, we specialise in performance tuning, ECU remapping, and vehicle upgrades designed to unlock the full potential of your car. Drivers across Wiltshire, Bristol, and Oxfordshire choose us for our commitment to safety, precision, and complete satisfaction. With years of hands-on experience and industry-leading knowledge, we’ve built a strong reputation as one of the region’s most trusted performance specialists.

We offer a wide range of performance solutions to help you get the most out of your vehicle. Our most popular services include:

Fully equipped tuning garage in Wiltshire providing performance upgrades for car

EGR & DPF  ADJUSTMENT

RECALIBRATION & DELETION

Need an alternative to EGR / DPF replacement? 

(For track use only.)

Live diagnostics during car remapping session in Swindon garage

SPEED LIMITERS

ADJUSTMENT & REMOVAL

VMAX is the maximum restriction of speed on a vehicle, this can be modified to suit. Especially useful for commercial vehicles.

ADBLUE COINTDOWN.jpg

ADBLUE

BESPOKE SOLUTIONS

 ADBLUE Countdown Removal, the ultimate solution for those seeking to eliminate AdBlue systems beyond economical repair.  (For track use only.)

JMWEB_edited.jpg

REMAPPING

VEHICLE PERFORMANCE

Improve your vehicle's power, economy/ MPG or towing torque with our tailored solutions. Expertly written for milage and modifications. 

Screenshot 2023-09-12 at 23.26.58.png

ECU CLONE

NEW & USED

Adapt new and used control modules to vehicles including damaged data retrieval from damaged ECU's. Clone the immobiliser data.

Supprted Cars.jpg

ONLINE CODING

BESPOKE SOLUTIONS

From retrofit cruise control to coding of new modules. We offer a variety of unique bespoke specialist solutions which are tailored to suit your needs.

Carbon Clean.jpg

CARBON CLEANING

SPECIAL CLEANING SERVICE

Carbon Cleaning solutions for accumulated soot deposits, preventative maintenance.

OEM DIAG TOOLS.jpg

DIAGNOSTICS

VEHICLE HEALTH CHECK

Using the latest diagnostic equipment such as AUTEL, TOPDON, SNAP-ON and OEM Dealer tools.

ENGINE.jpg

WORKSHOP

MECHANICAL WORKSHOP

Get in contact to find your nearest authorised JM Performance & Powerflow approved dealer.

Expert Mechanics

Wide Service Area

Flexible Payment Options

Competitive Prices

powerflow-exhausts_logo.jpg
TMG.webp

JM Performance is a trademark of JTS Auto LTD operating under UK regulations and insurance. Any modifications must be declared to insurance. We use genuine equipment with the latest updates and our technicians are qualified.

  • facebook
  • Instagram
bottom of page