DHM Ported Cylinder Head for the 2022+ Honda Grom / Monkey

Like almost everything done to the head except for I thought I was getting titanium springs and retainers, but apparently that’s extra. I tried to order them when they built it and the guy talk to you said it was all included. But when it arrived, it had zero titanium.🤷🏻‍♂️ yes I have to order more stuff to make it correct.

smooth inners..

i have yet to use it. but the porting job feels smooth on both intake and exaust ports. I'm paring it up with my Takegawa 145cc.

Wowww!

I have incrementally been doing upgrades to my 2023 Honda Grom, with this ported and polished head and the koso 34mm TB being most recent. DHM 149cc, DHM S1 Cam, DHM P/P head, Koso 34mm TB and DHM tune. Wowwww...this head and TB really woke this bike up. Revs so quickly and I'm more than pleased. David answered my questions quickly and customer service is A1. A+++