WAS IN WALSALL TODAY FOR WORK AND NOTICED THIS MASIVE WORKSHOP CALLED MIJ PERFORMANCE HAD A LOOK INSIDE AND AFTER SPEAKING TO THE GUIDE SAID THEY HAD JUST STARTED UP AND COULD DO CUSTOM EXHAUST FOR ANY MAKE OF CAR AND ALSO CUSTOM ENGINE TUNES / MODS.
WILL WAIT UNTIL THEY HAVE GOT CATALOGUE OUT WILL BE WORTH WAIT FOR THOUGH i THINK.

HERES THEIR WEBSITE FOR A LOOK.
WWW.MIJPERFORMANCE.COM