J J Performance
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J J Performance
A passion for cars modern & classic spans over 40 years starting with John (Owner) as an aircraft technician in the RAF working on the most advanced aircraft of the time; phantom jets and helicopters, in addition to building, preparing and maintaining cars for the RAF rally team.

His involvement with the sport of Rallying continued with building and supporting the Alfa 156 in the Alfa Romeo, Auto Italia championship & BTCC, building and running Alfa 147's for Tim Harvey, David Pinkney and Tom Ferrier.Among many his achievements is the building of the first ever 147 Super 1600 Rally Car for Steve Hill Motorsport, which we ran in the British Rally Championship.
Services
All combustion engines build up carbon deposits over a period of time; this affects the overall performance of the engine requiring it to work harder to produce less power burning fuel less efficiently & ultimately producing more greenhouse gasses. Our method of Engine De-carbonising uses Hydrogen & is chemical free; burning at a higher temperature the hydrogen cleans carbon deposits from point of combustion through to the catalytic converter.
Reviews (4)
Emily Louise Blake
Emily Louise Blake
Apr 15, 2020
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What a friendly helpful garage. They fitted me in immediately as needed my car fixed for working at the hospital, will definitely use them in the future!
Julien FitzGerald
Julien FitzGerald
Nov 23, 2019
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Wouldn't go anywhere else to get my car serviced and cared for. John and his team are always professional and highly skilled.
They can practically take a 20 year old car and make it run like new.
5*
Jakob James Sharman
Jakob James Sharman
Feb 22, 2018
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JJ did a Hydrogen engine clean on my van. I instantly noticed more power but more importantly my MPG rocketed up by around 15-20%. Excellent value for money and with the amount of fuel I’m saving it paid for itself in just a few weeks. I would definitely recommend this, great allround service by JJ.
Adrian Thompson
Adrian Thompson
Jul 09, 2016
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J J Performance have carried out work on 2 of my cars on a number of occasions.
Some of the work has been on an old Italian car, prone to being a bit difficult! I've always been very happy with the result and the bill! I would not hesitate to recommend them. A friendly, trustworthy and helpful garage which in my opinion is rare these days.