I've had an induction kit and a clutch from Checkpoint, both fitted. I have always been happy with there service. Kenny is the guy I have always dealt with. They can provide an awful lot more than just alarms and ICE. If you ask, they can usually get. I got my windows done at Tinthaus, and again was very happy with them. When one started to peel after a year, they refitted for free (came and collected my car from my work, and brought it back when complete (that's good service)). For other stuff, I prefer to head up to Glenburgie, just outside Forres. They have an awesome new workshop, well woth a visit. Not used Wallace Performance, but always here good things about them. Hope this helps.