RPM - Rains Precision Motorsports - Littleton, Colorado

Don Coppage

I brought my 2020 Shelby GT500 Carbon Fiber Track Pac in to upgrade the super charger lid with a VPM performance lid, and also a resonator delete. They did a great job! Planning on coming back to do a pulley swap and custom tune. Stand by for my next review.

JClipz The Barber

My motor blew in my 2018 Jeep Grand Cherokee SRT and I was lucky enough to have RPM do my motor swap for me. They worked really well with my extended warranty company to get everything covered. Working with Devan at the front desk was awesome. He updated me with what was going on with my car so I never had to worry. I got to meet the owner, Glen, he was super nice. He took the time to come out and fill me in on what took place before I drove off with my new motor. I couldn’t help but to notice all the Mopar cars they had out front. If you ever need any warranty work done or mods on your car I highly recommend RPM! 10 out of 10 for me. Thanks guys!!

Jeremy Ridley

I spoke with Glenn, who seems super nice and professional. Glenn took me on a tour of their shop as we talked over my project. Their shop and team seemed knowledgable and capable of doing my project. But, things went downhill when getting a quote. Glenn let me know he would get me a quote after I took the tour, which he did a few days later, but the quote was questionable. Some examples are the quote had heads on there for almost $16,000, fuel injector size was not correct for the project, chiller system charged twice on the quote, the quote was missing things that we talked over (driveshaft, brakes, and custom air intake), along with obvious, what I call, excessive markups that Glenn said their shop doesn't do. I asked Glenn about this over a phone conversation which he said the quote was wrong and that he would fix it and get a new quote to me. Well, 5 weeks later and no follow up / quote from Glenn. I'm not trying to bash their shop as Glenn seems nice and their shop seems capable for my project, but the trust factor isn't there after getting a bogus quote and then no quote after questioning the bogus quote. One other concern for trust was Glenn was unwilling to provide specifics for the engine build, saying he doesn't divulge certain information on his builds. When someone is willing to drop $80k+ on a project, transparency is a must along with good communication. Really those aspects should be given to any customer regardless of what they are willing to spend. Do your own research, but this was my experience.

Matthew Duerksen

These guys have made my dream car a reality, and I have nothing but incredible things to say about Glenn, John, and the rest at RPM. They do incredible work in a timely manner and are great at communication. They’ve always been honest with me and have led me in the direction that I want to be with my car. I love this place and wouldn’t bother going anywhere else. Visit these guys with 100% confidence. Best shop in town and if you want it done, they’ll do it! From interior to exterior mods, engine performance, and everything in between, they’ll take care of you! Thanks for everything

Jason & Linnea McClintock

Glenn and his crew at RPM are flat out amazing! They did a tremendous job with my truck. They’ve been up front with my build and helped me to get going in the right direction. During the initial phase of my build I ended up changing some things and adding other items which Glenn and his team were able to incorporate smoothly.

Having my truck back this weekend after the initial build phase was eye opening, the truck was awesome already but the performance parts, tune and TIG welding they did were all too notch. Really really impressed and beyond happy with the results! These guys are awesome!!!

Asante Daniello

I recently had my car's brakes serviced at this shop and I couldn't be more satisfied with the results! From start to finish, the team was extremely professional, knowledgeable, and efficient. They took the time to thoroughly inspect my brakes and explained everything to me in detail before beginning the job. The quality of their work was top-notch, and my brakes now feel better than ever before. I was impressed with their attention to detail and commitment to ensuring my safety on the road. The entire experience was hassle-free and stress-free, and the pricing was fair and competitive. Overall, I highly recommend this shop to anyone in need of automotive services. Thank you for your excellent work and outstanding customer service!

Joe Neubauer

Found these guys on the web looking for a shop to install a weapon-r intake on my dad's Lexus rx350. These guys were phenomenal and prompt!! I'll definitely bring my truck down for some work done!!

robert cordova

Glenn and his team have been great to work since I first had them install a Pro Charger super charger to my 2017 Dodge Charger Daytona. From before constellation before work began to post delivery they’ve stood behind their work.