It seems there is a lot of question about how much true HP increase one can expect from various mods (i.e. CAI, z-tube, popchargers, plenum, headers, high-flow cats, y-pipe, exhaust, ECU, pulleys, lighter clutch and flywheel, cams, etc). I know there are dyno's spread throughout the internet, on modification manufacturer websites (definitely not what I'm after, I want real life experiences), and even on this site, but it would be nice if we could get a good thread going comparing dynos from before and after the mod. I am curious for myself as I am doing mods, and for the edification and convenience of our other loyal readers. So lets have at it guys! Don't be afraid to post your experience just because you see someone else that already posted your mod, cause as we all know, g-d made each car special in its own little way :-) and of course combined with varying environmental factors, we could get a wide variety of results. Even if all you have are stock G dynos, go ahead and post them) (good to get a baseline reading first anyhow) So have at it guys!!

It ain't just a Nissan!

 

I've posted these 3 dyno days in the order that they were performed. Thanks to all who worked so hard in spending the time and money to collect, record and post the data!!!

Central FL Dyno Day

Golden Gate Dyno Day

So Cal Dyno Day