I had the non-sequential done to my car and I hated it so much I had it put back how it was. It totally destroyed the quality of the car and made it so you had the rev the crap out of it before it would develop any real power. I would strongly advise driving a non-sequential before doing the conversion, and I mean drive it yourself, especially at the lower rpm. I went for a drive in one before mine was done but I couldn't tell how little bottom end it had from the passenger seat.