mine has been done nearly a yr ago & i can say its fun & the car revs alot quicker so does feel like you have added some horses. Go & get it done. As kells said his name is martin on clubgti. He always has 16v flywheels already done. 1thing though, you will stall the car alot more, im still stalling it & its been a yr now. But get it done because its fun lol