Hi Everyone. I have a Nissan 370 Z GT, and have just has K&N Cold air induction kit fitted. I was going to take it to MIJ to have a half race exhaust fitted, but I have been put off my some folks negative reports about them. Are there any other Companies that offer the same service who have a good track record. Just for your info, I am 74 yrs young, but the need for speed never leaves you. Jim.