Dirty Boyz Motorcycles

06/17/2026

Graffeo pipe with no wideband 18mm 02 bungs and what's up with this finish on the rear head pipe? All that money 💰 for mediocre product.

06/14/2026

Some of the last weeks Dyno sessions.
Michigans One 🛑 Shop
www.m8headquarters.com

06/13/2026

163/165
135"
Cycle Rama CR515
A1 cycles crankshaft
Michigans One 🛑 Shop
www.m8headquarters.com

06/03/2026

159/152
Gen 1 12:1 131"
Plus 1 valve
Cycle-Rama, Inc CR557
Tuned on powervision.
Michigans One 🛑 Shop
www.m8headquarters.com

05/27/2026

05/26/2026

We are less than 3 weeks away from the Talons Out Honor Flight - Joe Langevin Memorial Ride and space is limited. Register today to ensure your spot!!

05/22/2026

Some of this weeks Dyno sessions. Our techs are working their butts off this week to get everyone out for the holiday weekend.
Riding season is here and we couldn't be happier!
Michigans One 🛑 Shop
269-680-6005
www.m8headquarters.com

05/21/2026

130/140
Star M28
Impact ECU
117"

05/18/2026

We hand pick every small detail of our in house builds.

Every build is assembled by our small team of professionals with the tools and know how to properly check all clearances upon assembly.

Allowing your engine its best chances of reliability and performance.

In house machine shop and Dyno to handle all of your Harley Davidson needs.
Michigan's One 🛑 Shop
269-680-6005.
www.m8headquarters.com

05/13/2026

Does your early Twin Cam Bagger have the Magnetti Marelli blues?

Thanks to the fellas at Zippers and HPI we can help you retain fuel injection with a deplhi conversion on a fully tunable wide band Thundermax ecm. Better mpg, more power, crisper response and stable idle control.

Michigans One 🛑 Shop!
www.M8headquarters.com