Mine went back tody after 12 months, I had heavy engine judder and excess smoking on start up. Having driven the car 100 miles today I can honestly say there was no difference. When I 1st installed there was a huge difference which led me to beleive there is a problem with my unit.
SO will see how good the customer service is now and report back, hopefully will get a replcement / reprogrammes unit back ASAP. WIll keep you informed.
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