This is a good question. I am thinking of doing something different with the exhaust and would hate to chop up a nice aftermarket one. So a zx9r header would be a much better doner.
Anyone had both? Even if it hasn't been on a dyno, butt dyno would still give an idea of the difference between them.
Anyone had both? Even if it hasn't been on a dyno, butt dyno would still give an idea of the difference between them.