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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 S W222 (2014 - 2017) 500 - 455HP

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

Auto Gearbox Tuner

Fits Mercedes S W222 (2014 - 2017) 500e - 449HP

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

Auto Gearbox Tuner

Fits Mercedes S W222 (2014 - 2017) 600 Maybach - 530HP

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

Auto Gearbox Tuner

Fits Mercedes S W222 (2014 - 2017) 63 AMG - 585HP

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

Auto Gearbox Tuner

Fits Mercedes S W222 (2014 - 2017) 63 AMG S - 612HP

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

Auto Gearbox Tuner

Fits Mercedes S W222 (2014 - 2017) 65 AMG - 630HP

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

Auto Gearbox Tuner

Fits Mercedes S W222 (2017 - 2020) 350d - 286HP

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

Auto Gearbox Tuner

Fits Mercedes S W222 (2017 - 2020) 400d - 340HP

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

Auto Gearbox Tuner

Fits Mercedes S W222 (2017 - 2020) 450 - 367HP

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

Auto Gearbox Tuner

Fits Mercedes S W222 (2017 - 2020) 500 - 435HP

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

Auto Gearbox Tuner

Fits Mercedes S W222 (2017 - 2020) 560 - 469HP

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

Auto Gearbox Tuner

Fits Mercedes S W222 (2017 - 2020) 560e - 489HP

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

Auto Gearbox Tuner

Fits Mercedes S W222 (2017 - 2020) 63 AMG - 612HP

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

Auto Gearbox Tuner

Fits Mercedes S W222 (2017 - 2020) 65 AMG - 630HP

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

Auto Gearbox Tuner

Fits Mercedes S W222 (2017 - 2020) 650 - 630HP

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

Auto Gearbox Tuner

Fits Mercedes S W223 (2020 -) 350d - 286HP

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

Auto Gearbox Tuner

Fits Mercedes S W223 (2020 -) 400d - 330HP

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

Auto Gearbox Tuner

Fits Mercedes S W223 (2020 -) 450 MHEV - 367HP

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

Auto Gearbox Tuner

Fits Mercedes S W223 (2020 -) 500 MHEV - 435HP

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

Auto Gearbox Tuner

Fits Mercedes S W223 (2020 -) 580 (4.0T) - 503HP

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

Auto Gearbox Tuner

Fits Mercedes S W223 (2020 -) 580e - 507HP

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

Auto Gearbox Tuner

Fits Mercedes S W223 (2020 -) 63 AMG - 650HP

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

Auto Gearbox Tuner

Fits Mercedes S W223 (2020 -) 680 - 610HP

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

Auto Gearbox Tuner

Fits Mercedes S W223 (2020 -) 73 AMG - 800HP

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
Seat ateca in for dsg service great service and work as always
Carl groom SEAT

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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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Offers on parts and tuning, first

A short email now and then: new vehicle support, parts deals, open days. Nothing daily.