Hey guys and gals, I noticed a while ago someone was asking about andrew racing exausts, and as he is a newcomer to the market not to much was known about him or his product. Well myself and a friend of mine picked up a pair of pipes of him (I ride a 03' 636 and my friend rides a 03' zx9) And I am pleased to say the look and sound are sweet! But more importantly the dyno numbers were very good as well. I picked up 3 horsepower and a foot pound of torque while my friends nine picked up 6hp and not quite a fp of torque! not bad I would say. I have the dyno charts to back it up however the file type appears to be to large so I cant just attach the docs to this post.
Hope that answers some of your questions.