Hey everyone, Just a quick hello and introduction. Im Leigh from Queensland, Recently bought myself a s15 spec-r about 9 months ago. So far the car has lived up to all my expectations, no dramas as of yet. A few small things i am probably worrying about that i shouldnt be. The car has a power fc and ive noticed it saying a unusually high knock from time to time but the car has never felt like it has knocked or felt like it has skipped a beat. maybe im getting some belt slippage or something? Has anyone else had these issues?