I've been searching and searching and when I think I've got it. .. I don't. I know there's many threads on camshafts but my question is... is there any respectable gains from swapping my 03 a2 camshafts to the 06-09 si z3 intake camshaft and the 06 -08 tsx exhaust camshaft? I've tried looking and looking.... I hope someone has tried this. I'm getting ready to do it. I just got my hands on bother cams for a good price. Just want to make sure the intake camshaft won't hurt me. I plan on going boost in the future. Motor is bone stock other Than the bolt ons I hand waiting to be installed once I get the cams.

 

The SI camshafts are at an ITR spec and the TSX cams are the biggest on the market OEM. So you will get gains but how much... not that significant depending on the price. Are you getting them cheap? Also don't forget you need to retune.

If you're stock there are plenty of other mods you could worry about first.