Hello All, Can anyone advise of any good performance parts/mods for the 3.7? Or if a company makes a supercharger or turbo for the 3.7? Thanks!

 

If you have the funds, forgetabout the mods and replace the power plant.

Gen 5

 

How $? And tranny and..?

 

IMO, I would sell your current H3 and buy an ALPHA.

 

I agree. especially after buying an Alpha, and owning a highly modified I5

 

NO way would I ever buy the I5 ...
Makes no sense!
Buy the Alpha or dont even buy a Hummer.

 

Along the lines of this dreamer thread (super/turbo charge I5)....... How about installing two in tandem LLR 3.7L I5s?? 10 cylinders!






If you can't live with a modded I5 = Intake, PCM tune, Efan, PP TB, cat back exhaust, and even a header............ That is why GM made the LH8 Alpha.

 

PCM tune, Air Doc........

 

That's too much work, just install the 572.

 

I love the look of my H3, but must agree with this guy. I have an I-5 and I hate the powertrain so much... wish I'd done more homework before buying what was intended to be my daily driver so I could keep my sports car in the garage in inclement weather.

I like the H3 enough to invest in aesthetic mods, but having to drive the I-5 every day is borderline intolerable. At this point, though, it's a sunk cost... unless anybody wants to trade me their Alpha.