Serving riders since 2009
Built Loud.
Ridden Hard.
Performance and audio specialists for American V-Twins: Dyno tuning, sound systems, lighting and full custom builds.
What We Do
Dyno Tuning
In-house dyno. Real numbers, real power gains.
Performance Parts
Exhaust, intakes, cams, wheels and more from the brands you trust.
Audio & Lighting
Concert-level sound and head-turning LED lighting.
St. Michael, MN
WE DON'T GUESS.
WE DYNO.
Cams, heads, big bores and custom tunes for Milwaukee-Eight, Twin Cam, PowerPlus and Thunderstroke. Around 30 engine builds and 150 cam jobs a year, every one finished on the dyno.
Peak figures: Harley-Davidson published Screaming Eagle results, M8 107. Curve shapes illustrative. Ask to see real sheets from our dyno.
The stage sheet
What goes in the bike at each step, and what it usually costs out the door. Most riders climb one stage at a time. Everything ends on the dyno.
Breathe
High-flow air cleaner, exhaust and a custom dyno tune. Biggest feel-per-dollar on most V-twins.
104 ft-lb
Cams
A cam matched to your pipe and riding style. Torque cam for two-up, power cam to wring it out.
108 ft-lb
Big bore 114
Bigger cylinders and pistons for more displacement, paired with a cam and tune.
121 ft-lb
131 build
Full engine: ported heads, high-compression pistons, big bore and cam. Top of the tach.
138 ft-lb
*Harley-Davidson published Screaming Eagle figures on an M8 107. Your bike, exhaust and tune change the result. Costs are typical ranges; you get a written estimate for your exact bike.
What comes through the door
No metric bikes, no side-by-sides. Every tool, tech and hour in this shop goes into American V-twins.
01 · Engine
Performance
Cams, big-bore kits, high-compression pistons, ported heads, intakes and full exhaust.
S&S · Wood · Feuling · BAKER GrudgeBox
02 · Dyno / ECU
Dyno tuning
Custom maps for fuel and timing. We also fix the bad maps people download off the internet.
Power Vision · ThunderMax · Dynojet
03 · Audio
Audio
Fairing speakers, amps, bag lids and bar pods, wired clean and set up to be heard at 80.
Fairing · Bag lids · Bar pods · Amps
04 · Fabrication
Custom builds
Ground-up builds, frame work, shaped tanks and fenders, hand-bent pipes. Baggers to bobbers.
Frames · Sheet metal · Exhaust
05 · Diagnostics
Troubleshooting
Electrical gremlins, noises, codes, and bikes that just don't run right.
Electrical · Mechanical · Tuning
06 · Service
Service
Scheduled maintenance by people who build these engines, not just change their oil.
Harley-Davidson · Indian
Who We Are
An independent shop specializing in American V-Twin motorcycles: Harley-Davidson®, Indian Motorcycle and Victory. Our first-time customers keep coming back for performance upgrades and maintenance, time and time again.
Bring your motorcycle in for an inspection and see what our commitment to quality is all about. We may not be related, but you'll feel like family.
Meet the Team
Eric
Owner / Certified Technician
With 25 years in the motorcycle industry, Empire Cycle is a true reflection of my love for riding! There's just nothing like hitting the open road on my Harleys. I also love spending time outdoors riding with my family. Together, we have a blast hitting the trails and camping.
Nigel
Certified Technician
Many years under my belt specializing with ALL engine manufacturers. I'm the Indian Motorcycle Specialist here at Empire Cycle. In my free time I like to hunt and be with my family.
Schedule Service
Pick your bike and services. Available start times adjust to how long the work takes.
Before you book
Frequently Asked Questions
Still have a question? Call (763) 479-7700 or book your service.
Ride With Us
Fresh builds, shop news and events. Follow Empire Cycle on Instagram and Facebook.