its hard to say. The guy that fitted my cams had them miles out and it only made
[email protected] and
[email protected], both before and after. However dastek still mapped my unichip before i fitted it with teh crap cam timing. When i went back a few months later they said it was running lean and needed a remap. So it should have made a differnce with the remap.
Once i adjusted teh cam timing myself it made
[email protected] and got 147lbft of torque without a remap. Now i dont know of any cars with similar mods except the header and got as much torque. SO im going to have to say that it did make a differnce. Admittedly i used a differnt type of header altogether, but most people seem to have come to the same conclusion with various different headers.
You will notice the extra midrange torque from it