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Porsche GT3 991 tuning on dyno

Tuning Box

Plug-in tuning boxes you can fit yourself in minutes and take off again.

  • 2,647 parts listed
  • Tracked UK delivery, or collect from Maidstone
  • 4.8 from 2,200+ reviews

2,647 parts

Fitted in Maidstone

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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.

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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

Excellent service and the Speedbuster tuning box has transformed my Macan S beyond GTS level!
CK Porsche
Great customer service and advice. Just fitted their tuning box to my 2018 RS4 and results are fantastic. Worth every penny.
Robert Moss Audi RS4 B9 2.9 V6 Twin Turbo
Easy and efficient service - installed an adaptive ECU module to my Mercedes AMG. Would happily use them again.
Paul Seddon Mercedes

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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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Newsletter

Offers on parts and tuning, first

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