Dyno Tuning in Grand Rapids, MI
Rapid Racing is the closest dedicated performance tuning shop to Grand Rapids — a short drive away in Jenison, MI. Custom dyno tuning, ECU remapping, and full performance builds, all done in-house on a Dynojet 424xLC2.
The Grand Rapids performance tuning shop
Grand Rapids drivers have been driving past generic auto shops for performance work for a long time — most general repair shops don't have a chassis dyno, don't carry HP Tuners or EcuTek licenses, and won't touch a tune. Rapid Racing exists to fix that. We're a dedicated performance shop just 15 minutes from downtown Grand Rapids in Jenison, MI, and dyno tuning is what we do every day.
Our shop runs a Dynojet 424xLC2 — a load-bearing AWD chassis dyno that lets us tune at every load point your car will actually see on the street and track, not just full-throttle pulls. Every tune is custom, validated with real-time AFR / knock / EGT data, and documented with before/after dyno graphs.
Whether you're driving from East Hills, Heritage Hill, Eastown, Cascade, Forest Hills, the Northeast side, or anywhere across the GR metro — we're straight down 196 or M-6 from you. Most customers find we're closer than they expect.
Areas We Serve
Approximate drive time to our shop at 6645 Marcan Ave Suite B in Jenison.
Grand Rapids
~15 min
Grandville
~8 min
Hudsonville
~10 min
Wyoming
~15 min
Kentwood
~20 min
Walker
~15 min
Holland
~25 min
Zeeland
~20 min
Caledonia
~25 min
Rockford
~30 min
Allendale
~15 min
Coopersville
~25 min
What We Tune in Grand Rapids
BMW
N54, N55, B58, S55, S58, S63 — MHD, bootmod3, and EcuTek calibrations including methanol and flex fuel.
Ford
Coyote 5.0, EcoBoost 2.3/2.7/3.5, Powerstroke diesel — HP Tuners, nGauge, and SCT-platform calibrations.
GM
LS / LT V8s, LTG/LSY turbo I4s, LBZ/LMM/LML/L5P Duramax — HP Tuners reflashing.
Subaru
WRX/STI EJ and FA platforms — EcuTek, Cobb Accessport, RomRaider on older OBDII platforms.
Honda / Acura
K20/K24, L15B7, K20C — Hondata FlashPro, KTuner, and rev-D ECUs.
Nissan / Mitsubishi
VQ/VR/VR30, RB, SR — EcuTek, Cobb, and Haltech standalone systems.
Don't see your platform? We tune across most modern OBDII vehicles. Reach out and ask.
How to Find Us From Grand Rapids
From downtown Grand Rapids, take I-196 west toward Holland, then M-6 west. Exit at Wilson Ave and head south — we're located at 6645 Marcan Ave Suite B, Jenison, MI 49428. Most West Michigan customers arrive in under 20 minutes.
We're easy to find with plenty of parking for trailered vehicles. If you're hauling something low or non-running, give us a call ahead of time so we can make space at the bay door.
All Services
Ready to Tune?
Book your appointment online or give us a call. We'll talk through your build, your goals, and what to expect on dyno day.