A reputable shop stated that they were able to get about 6 more HP out of the stock oem engine with this set up. I asked if they had a dyno graph to back up their claims, but were unable to provide one. From speaking to a couple of reputable engine tuners the new engine design responds really well to mods..
Is that a realistic claim of HP increase with good race fuel ?
Have read on forums that some members were able to get a few extra ponies on the 17's when they 1st came out by adding an aftermarket exhaust & a remap with the oem cdi.
Speak softly and carry a big stick.