u/novaking_07

▲ 3 r/Hummer

H3 engine upgrades

Anyone done any other engine mods to your rig that have made it feel more powerful or just little bits of HP here and there? Such as upgrading throttle body, aftermarket MAF, aftermarket coils and spark plugs, exhaust? Ant positive experience? I am currently waiting on my PCM tune to return but wondering if I can squeeze in other ways to add some more power. It’s the I5. Not really sluggish but just wanting to boost it.

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u/novaking_07 — 5 days ago