More Power for the H2 [Archive] - Hummer H2 Forum: H2 forums

More Power for the H2

Jurgen
08-01-2005, 02:15 PM
Hello,

Does anyone have any experience with 'power up' products like Jet Performance, Hypertech Power Programmer....or others and these air intake systems it is really worth it?

Thanks,

EuroHummer
11-05-2009, 09:32 AM
For tuning your PCM, try Nelson Performance

http://www.nelsonperformance.com/tuning.htm

The Granatelli MAF sensor dyno tests says it increases HP by 11. Before you buy it, you have to decide if you are using a stock or aftermarket airbox because they have two types of programming.

The stock air intake should not be a restriction on a relatively stock motor. The aftermarket ones are noisier, but may or may not increase power. I am dyno testing my 408 stroker in my H2 soon, and will let you know if the stock intake and MAF is good enough. If it restricts air flow I will go to a higher flowing K&N. Some cost up to 600+, and don't even suck cold air.....but they do look nice!