John Sleath Race Cars Ltd

These guys are the mutt's. They went over and above to get a result that they were happy with. Now my only issue is preventing the van from going above 55 while I run it in.

Yesterday I went to get my car mapped at John Sleath Race cars. This is my second visit, the first time being some 5 years prior with a previous project. I was happy to discover that the level of service, knowlage and work ethic was excellent and the results surpassed my expectations.With a brand new project having covered 0 miles, a few teething problems arose due to the way I had installed the new parts. John was very knowledgeable and quick to come up with a solution.My car is a 2000 Golf 4 motion with an R32 turbo running Haltech management. John has so much knowledge and experience he can really turn his hands to any motor/software combination and deliver the best result.

Great guy. Tuned up the old BMW nice. Knows his stuff which is a must.

Just back from getting car remapped here, due to last mapper/garage(as reviewed).Great set of blokes,John interested in car(as in use,issues,got on with the job and very good at it).After being on the rollers was asked to take it on the road to see how it drives(back on rollers if not happy).Was also offered if any issues arise,I could bring it back at a later date.Well worth the trip.

Tuned a gt40 (ls1 engine) with throttle bodies on a corvette pcm with hp tuners pro no more lean stumbles or flat spots runs very well considering other tuners said I needed a standalone pcm..thanks john much appreciated

V8 engine experts. Great service， no nonsense advice. John has helped me complete and test a Chevy V8 with individual throttle bodies.

Top guy. Honest, down to earth, knows what he's doing. Lovely set up and nice family. Sorted a small issue with my car my car but luckily I managed to do most of it before. Well worth knowing and one if the guys in the V8 business to respect. If you're struggling with holley carbs or V8s in general...he's your guy.