GMR Performance

GMR Performance GMR Performance |Newton IA|
Motorcycles, Parts, Service, DYNO Tuning
(6)

We offer basic service work ( oil filter, tires, brakes) as well repair work ( leaks electrical, mechanical) and custom add ons, ( chrome rims exhaust systems, braided cables, etc)

Impact Wiring Solutions is LIVE at Daytona Beach Harley-Davidson 🔥Day 3 of hands-on training is underway, with Steve lea...
04/15/2026

Impact Wiring Solutions is LIVE at Daytona Beach Harley-Davidson 🔥
Day 3 of hands-on training is underway, with Steve leading the class and dialing in the next wave of certified tuning professionals. This isn’t just a quick overview — this is in-depth, real-world training designed to ensure every technician knows the software inside and out and can confidently handle anything that comes their way.
What does this mean for riders and shops?
✔️ Truly certified technicians — not guesswork, not hype�✔️ Direct access to our tech support system when it matters most�✔️ Proven solutions backed by real experience�✔️ Certified locations listed directly on the Impact Wiring Solutions website
For dealerships and independent shops, this is an opportunity to stand out. Becoming an Impact Wiring Solutions Certified Tuning Facility means offering your customers a higher level of performance, reliability, and support — and separating yourself from the noise with real capability.
With this class, we’re bringing the total to THREE certified tuning facilities in the state of Florida — and we’re just getting started.
If you’re a dealership or independent shop looking to elevate your service department and be part of something built on results — not smoke and mirrors — now’s the time. Daytona Harley-Davidson

Daytona HD is an amazing shop .. and yet another certified Impact Wiring Solutions tuning facility coming to a close. My...
04/15/2026

Daytona HD is an amazing shop .. and yet another certified Impact Wiring Solutions tuning facility coming to a close. My next stop is South Fl West Coast Cycles. Stay tuned as always for more updates .

04/02/2026

121 pistons .

04/01/2026

A1 Cycles.net
Killer crank for this 135 that we are building . We opted to have Mike build us a custom balanced rotating assembly made from all American made parts. Are q

Kurt’s 135 kit with KW exhaust system louvered cores , 160 club .
03/24/2026

Kurt’s 135 kit with KW exhaust system louvered cores , 160 club .

Faribault Harley-Davidson. Faribault Harley-Davidson will soon be the next fully certified tuning center for Impact Wiri...
03/11/2026

Faribault Harley-Davidson.

Faribault Harley-Davidson will soon be the next fully certified tuning center for Impact Wiring Solutions in Minnesota.

If you’re serious about performance and want your Harley-Davidson dialed in the right way, this will be a premier destination for dyno tuning. With full Impact certification, riders will have a trusted location to unlock the real potential of their bikes.

When it’s time to strap your Harley to the dyno and get it tuned right, Faribault Harley-Davidson will be the place to do it in Minnesota. Performance, precision, and results — all in one shop. 🔥🏁

02/19/2026

Shop has been slammed trying to keep up .

02/12/2026

What an incredible experience testing with TAB Racing and Impact Wiring Solutions. From 121 down to 117, through all the exhaust testing and cam development, the performance gains and results have been huge. We couldn’t be more excited about what we’ve accomplished together — and this is only the beginning of what’s coming next. Stay tuned. TAB Performance Impact ECU Owners Group Impact Wiring Solutions

AMAZING results for a  bolt in cam
02/12/2026

AMAZING results for a bolt in cam

part 5
02/10/2026

part 5

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Address

3318 N 19th Avenue W
Newton, IA
50208

Opening Hours

Monday 8am - 5:30pm
Tuesday 8am - 5:30pm
Wednesday 8am - 5:30pm
Thursday 8am - 5:30pm
Friday 8am - 5:30pm
Saturday 9am - 2pm

Telephone

+18177412000

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