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4.8★★★★★2,200+ reviewsClosed · opens Monday 8am
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4.8★★★★★2,200+ reviewsClosed · opens Monday 8am
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Porsche GT3 991 tuning on dyno

Gearbox Tuning

Gearbox tuning modules for faster, firmer shifts.

  • 6,572 parts listed
  • Tracked UK delivery, or collect from Maidstone
  • 4.8 from 2,200+ reviews

6,572 parts

Auto Gearbox Tuner

Fits Mercedes G 2000 - 2017 63 AMG - 544HP

Original price was: £415.00.Current price is: £373.50.£311.25 ex VAT Add to basket

Auto Gearbox Tuner

Fits Mercedes G 2000 - 2017 63 AMG - 571HP

Original price was: £415.00.Current price is: £373.50.£311.25 ex VAT Add to basket

Auto Gearbox Tuner

Fits Mercedes G 2000 - 2017 65 AMG - 612HP

Original price was: £415.00.Current price is: £373.50.£311.25 ex VAT Add to basket

Auto Gearbox Tuner

Fits Mercedes G 2018 - 500 - 4.0 V8 Bi-Turbo - 422HP

Original price was: £825.00.Current price is: £742.50.£618.75 ex VAT Add to basket

Auto Gearbox Tuner

Fits Mercedes G 2018 - 63 AMG - 4.0 V8 Bi-Turbo - 585HP

Original price was: £825.00.Current price is: £742.50.£618.75 ex VAT Add to basket

Auto Gearbox Tuner

Fits Mercedes GL 2006 - 2012 320 CDI - 211HP

Original price was: £350.00.Current price is: £315.00.£262.50 ex VAT Add to basket

Auto Gearbox Tuner

Fits Mercedes GL 2006 - 2012 320 CDI - 224HP

Original price was: £350.00.Current price is: £315.00.£262.50 ex VAT Add to basket

Auto Gearbox Tuner

Fits Mercedes GL 2006 - 2012 350 CDI - 211HP

Original price was: £350.00.Current price is: £315.00.£262.50 ex VAT Add to basket

Auto Gearbox Tuner

Fits Mercedes GL 2006 - 2012 350 CDI - 224HP

Original price was: £350.00.Current price is: £315.00.£262.50 ex VAT Add to basket

Auto Gearbox Tuner

Fits Mercedes GL 2006 - 2012 350 CDI - 265HP

Original price was: £350.00.Current price is: £315.00.£262.50 ex VAT Add to basket

Auto Gearbox Tuner

Fits Mercedes GL 2006 - 2012 420 CDI - 306HP

Original price was: £350.00.Current price is: £315.00.£262.50 ex VAT Add to basket

Auto Gearbox Tuner

Fits Mercedes GL 2006 - 2012 450 CDI - 306HP

Original price was: £350.00.Current price is: £315.00.£262.50 ex VAT Add to basket

Auto Gearbox Tuner

Fits Mercedes GL 2006 - 2012 500 - 388HP

Original price was: £350.00.Current price is: £315.00.£262.50 ex VAT Add to basket

Auto Gearbox Tuner

Fits Mercedes GL 2012 - 2015 350 CDI BlueTec - 258HP

Original price was: £350.00.Current price is: £315.00.£262.50 ex VAT Add to basket

Auto Gearbox Tuner

Fits Mercedes GL 2012 - 2015 450 - 362HP

Original price was: £350.00.Current price is: £315.00.£262.50 ex VAT Add to basket

Auto Gearbox Tuner

Fits Mercedes GL 2012 - 2015 63 AMG - 557HP

Original price was: £415.00.Current price is: £373.50.£311.25 ex VAT Add to basket

Auto Gearbox Tuner

Fits Mercedes GLA H247 (2020 - ) 180 - 136HP

Original price was: £825.00.Current price is: £742.50.£618.75 ex VAT Add to basket

Auto Gearbox Tuner

Fits Mercedes GLA H247 (2020 - ) 200 - 163HP

Original price was: £825.00.Current price is: £742.50.£618.75 ex VAT Add to basket

Auto Gearbox Tuner

Fits Mercedes GLA H247 (2020 - ) 200d - 150HP

Original price was: £825.00.Current price is: £742.50.£618.75 ex VAT Add to basket

Auto Gearbox Tuner

Fits Mercedes GLA H247 (2020 - ) 220d - 190HP

Original price was: £825.00.Current price is: £742.50.£618.75 ex VAT Add to basket

Auto Gearbox Tuner

Fits Mercedes GLA H247 (2020 - ) 250 - 224HP

Original price was: £825.00.Current price is: £742.50.£618.75 ex VAT Add to basket
Fitted in Maidstone

Want it fitted?

Buy the part and we can fit it in our workshop. Ask for a fitted price on any product page and we'll quote the whole job, parts and labour.

Call 01622 321500 Meet the team →

John Ford beside a Porsche 911 GT3 on the JF Automotive rolling road A JF Automotive technician reading and writing an ECU file at the workshop in Maidstone, Kent
Reviews

What customers say

I got a stage 1 tune for a Golf R, engine and gearbox. This is our family car so it was about tightening up the response and adding low-end torque to improve driveability. I turned up, the job was done while I waited (less than an hour). They had free coffee and good wifi so…
Richard Henderson VW
My VW T6 had a hybrid turbo installed and a myriad of other engine improvements such as intercooler upgrade along with charge cooler upgrades etc, the guys at JFA were great, setting it up was more awkward due to it not being a standard engine, but they tuned it superbly, 263bhp with the gearbox tweaked…
Ian VW
The gearbox is so much more responsive since having the Stage 3 tune! Gearchanges are a lot faster, the car accelerates much quicker. By far my favourite bit is the full manual, with the paddle conversion its just so much better to drive!
Ollie BMW 335D Diesel

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The JF Automotive team
Meet the team

The team behind every job

Technicians, calibrators and the front desk, all in Maidstone. No call centre and no subcontracting - the person who books you in is the person you can ask about the job.

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