RPM - Rains Precision Motorsports

Reviews

Reviews are sorted by relevance, with the most helpful and insightful feedback listed first for easy reference.

  Don Coppage
4 months ago
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.

  Jeremy Ridley
2 weeks ago
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.

  Jason & Linnea McClintock
6 months ago
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!!!

  Matthew Duerksen
7 months ago
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 everythingServices: Exhaust, Auto battery replacement, Auto engine diagnostic, Auto engine tuning, Body & Trim, Wheel alignment

  JClipz The Barber
a year ago
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!!

  m.h
7 months ago
You can't doubt the quality of the work they have. Although by the time you get your car back you will wonder if it ever was worth doing business with them. They will never answer any calls or respond to emails. If they tell you that they need your car for two weeks, then be prepared to keep your car there for a month and a half. Also, if you plan on having Glenn work on your car, never take him for his word, be sure to have everything documented and any guarantees in written form because he will not keep it. (EDIT) Responding to the reply by the owner, this review was written after many people kept asking me about the garage and what I have written in this review is what I have told everyone. Additionally, the owner says he gave me a discount on the parts. The work done on my car cost $13000 for a 392 heads and cam package, that price does not seem like a discount.

  Keith Siggins
3 months ago
I had my 2015 Jeep Grand Cherokee 5.7 serviced by RPM, with Kooks catted headers and Borla exhaust swap alongside a PCM tune. The setup unlocked an additional 40hp and a much smoother dyno curve that can be felt on the road. They delivered on a few other misc requests, like the installation of a set of Morimoto headlights and a Chief Products roof rack. Really happy with the results, expect nothing but the best from RPM.

  Ryan Heinitz
6 months ago
All I have to say is"DAMM". Glenn and his guys have built such a well-balanced power package for me. The car is surpassing all of my expectations. His expertise and knowledge of cars should be listened to, plus the quality of the work is excellent. I look forward to the future of my current car and next project with RPM.Service: Auto engine tuningService: Auto engine tuning

  Aj Canada
3 weeks ago
My wife and I have been using RPM for years now and this is the shop to show you what you need base your standards on. the entire staff is not only knowledgeable with almost any questions you may have,but they treat you very well and respectfully more as a friend or family instead of just a pay check

  Asante Daniello
a year ago
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
4 years ago
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
3 years ago
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.

  Jason
a year ago
So, yeah, wow am I glad I found Glen and his team.I had modified my car over the years, and the final piece was an upgraded camshaft. For years, I had used a well-known email tuner for my custom tunes, and did so again this time. After 10 attempts, they just couldn t get it figured out, so I bit the bullet and took it to a Dynotune shop in my area. Unfortunately and after enormous expense they, too, couldn t get it right. At my wit s end, I started over and found Glen and RPM, and from the moment I met him I knew I was in the right place. Glen personally took the time to discuss with me where I was at, and I left the car with him to do his magic. Needless to say, he and his team really came through for me and the car runs better than ever FINALLY! Glen even personally called me on my way home (and on his day off) to make sure both me and my car were happy.RPM was communicative, knowledgeable and generous with their time the whole way, and now I know that it truly pays to ONLY work with the best. Man, I wish I found them first, and now that I have, they ll have a client for life.Trust me on this; do not waste your time (and money) trusting your ride to just anybody. These guys ARE the experts, and you will not be disappointed.Service: Auto engine diagnostic

  Destiny Alfaro
2 years ago
I would go literally ANYWHERE else.**The short version, it took two months for very simple work, cost double the quoted amount, and left our vehicle with more issues than it had when we took it in. Communication is nonexistent and every shop we ve taken our Jeep to since this experience has told us stories about how terrible RPM is.**LONG VERSION: We took our 2005 Jeep Wrangler to RPM after running into issues with the new engine we installed. We were told that it would take 4 days and cost no more than $1200 for a computer tune and fuel injector replacements to fix the air fuel ratio.After two weeks with no word we began calling the shop to get some kind of update. Many of our calls were ignored and when Glenn finally did answer, he gave no information and vague excuses about being too busy to work on our car. During one call he stated You don t need to keep calling, I ll contact you when I have an update. Two months later we finally got our Jeep back. It cost double the quoted amount to install a new battery, new fuel injectors (a size that we already tried and told them about) and a tune they supposedly couldn t complete because of computer code issues. When we picked the vehicle up it was noticeably in worse condition than when we dropped it off. The engine sounded terrible, the timing was off, and the car died on our way home.Our car was covered in dust inside and out, filled with trash (water bottles, cans, fast food wrappers) and now had more problems than it did when we took it in. We began doing research on other shops we could take it to, and EVERY SINGLE ONE had heard from customers about how awful RPM was. We ended up taking it to Matt at Garage Works and finally found a shop we can trust that isn t just in it for the money! All in all, DO NOT TAKE YOUR CAR HERE unless you want to be lied to and robbed.

  Brian Radford
2 years ago
Have been bringing my Corvette to RPM for over 3 years now. Glenn and his crew absolutely know their stuff, hands down. The work is top notch and usually super quick. I will agree with some of the other reviews that communication is an issue, which his why I've docked 1 star. The last 3 visits I haven't receive a call until the car is finished, despite asking for a call with an estimate before work is started. Overall, super great work usually super fast.Services: Steering & suspension repair, General repairs & maintenance, Engine repair, Wheel alignment, Brakes, Oil change

  MileHigh R/T
5 years ago
What a phenomenal shop. Always clean and organized. Glenn is such an amazing person. My car has been seen by Glenn and his wonderful staff several times. Sometimes for upgrades and sometimes for repairs. I was there for a repair today and got the privilege to sit and see exactly everything that Glenn does for his customers. Top notch genuine person that is for sure. Zach and Glenn worked their butts off on my car and I couldn't be anymore pleased with the results. Talked briefly with James and talked Jordan's ear off great experience through and through. Gary even offered to give me his truck to go somewhere besides the waiting area. Everyone there are extremely knowledgeable and genuinely warm hearted and dedicated individuals. Won't take my car anywhere else even though I live on the south end for Colorado Springs. Definitely the go to shop for all your performance needs. Thank you RPM.

  Fast World Problems
2 years ago
I ve been taking my Jeep Trackhawk to RPM for 2 years, and I ve had nothing but exceptional service here. The build quality and tuning are second to none, but my favorite part about RPM is that it s a one stop shop from in house tuning performed by the owner to custom fabrication to tint and vinyl wrap. It s astounding what they re able to do right there in the shop with this team. I have been in the racing world, building, racing, and tuning cars and trucks for over 20 years, and this is by far the best shop I ve ever been to.Services: Exhaust, General repairs & maintenance, Electrical, Auto engine tuning, Engine repair

  Carol Peterson
5 years ago
The guys at this shop are AMAZING! I brought my car in for routine maintenance. Glenn and his team were able to get me in quickly. The pricing is reasonable. They didn't try to add unnecessary repairs to my bill. This is an honest group of hardworking guys. I would definitely recommend.

  Andy Triplett
a year ago
Glenn and his team at RPM did an amazing job on my Camaro! Absolutely love it and highly recommend using them! Very happy!

  Bernie Blom
5 years ago
I have known Glenn and his dad for many years as I have been in the automotive repair business all my life. RPM is the top performance, repair and maintenance shop in Denver! Glenn tuned my Procharged Challenger to perfection! Glenn has consistently produced the fastest cars in our car club (Colo Dodge Challenger Club) 1600+ members strong. I recommend him to anyone looking for the best performance or most trustworthy repair shop. I personally wouldn't go anyplace else.

  Steve Newton
5 years ago
Glenn's combination of skill, experience and intuition is exactly what I have been looking for in a mechanic. Additionally, his professional ethics are superb. I am confident he would never misrepresent a problem or overcharge any one in any way.I now insist that Glenn's shop perform all my maintenance. I truly would not trust my vehicles to anyone else, and I recommend him to anyone seeking a competent, trustworthy mechanic.All of his crew are all top notch professional people.Thank you RPM.

  Timothy Perkins
a year ago
Glen and the guys are great. They took my car in quickly and delivered it on time as promised. Glen even took the time to explain what costly expenses could be avoided without comprising performance or reliability. He installed a e 85 tune and the car runs better than ever.Services: Auto engine diagnostic, Auto engine tuningServices: Auto engine diagnostic, Auto engine tuning

  Brady Lehr
3 years ago
As a fellow business owner (High Country Performance 4x4) I'm impressed with Glen and RPM. We sublet work to them and refer customers for work we can't do or don't want to dive into. All the work they've done for us has been top notch and we've only had positive feedback from referrals. If I ever pull the trigger on a Jeep Track Hawk it will get the RPM treatment...

  GeorgeFlippin
a year ago
This shop is slower than molasses, takes money upfront, which is understandable for parts, but has been months and they are nowhere near getting ready to do the job that was asked of them. If you can't do the job, communicate it, refund the money given, and move on. Total lack of communication and commitment here.

  Josh Hayes
2 years ago
All the work they do is top notch, no doubt about that. But their communication could be better. For example one of my parts didn't fit and they didn't let me know it wasn't able to get installed. The only way I found out about it was I checked the box of parts in the back of my car and found it back there. Plus I always had to be the one to call them to find out what was going on with my car. All the work done on my car was extremely professional tho. If they fixed the communication problems the shop would be perfect

  Heather Witkowski
7 years ago
have been working with Glenn for about two years now. He is always kind, professional, explains everything in detail, addresses other concerns when necessary but will also go over what is important to fix and which issues can wait. I've stopped by the shop with minor concerns that he's fixed for free because it only took a minute to address. Other mechanics will charge for whatever they can. I've been stranded after an accident that totaled my car... guess who came to the rescue not shortly after with a tow truck to help me? Glenn's team. He's always went above and beyond with both customer service and mechanical skills. I would not trust anyone else with my vehicle. As a single woman that doesn't know a lot about cars it's scary, RPM diminishes that fear 100%. Oh and I even had a detailed car waiting for me after my last repair. If you want a place you can trust RPM is the place to go!

  Mo Lobo
2 years ago
Glen and the guys at RPM Rains Precision Motorsports we're very helpful in getting my C7 Corvette tuned after I rebuilt and added several performance upgrades to the engine. Their knowledge and experience was very helpful. I would recommend them to anybody needing high performance work.Service: Auto engine tuningService: Auto engine tuning

  Drew Prange
3 years ago
I have a 2018 Trackhawk that I wanted to boost the power on. I researched a lot of performance shops in town before I decided to go with Glenn and his team at Rains Precision Motorsports. I am happy I did! The power increase is incredible, while still keeping its daily driver dependability. Glenn even met me at the track to dial it in! It's been a year since I have had the work done and it still puts a smile on my face every time I step on the skinny pedal! I highly recommend these guys!

  M Baker
4 years ago
This auto performance and repair shop is absolutely top notch. If they awarded Michelin Stars for auto shops like they do for high end restaurants these guys would have bunches of them. Asked for more performance out of my newer Dodge Challenger and these guys far exceeded what I thought could be done. Best performance repair team I've ever worked with.

  Steven Stott
a year ago
After being turned away from service mgrs after service managers at several local dealerships...including the one I bought the vehicle from, who got 1-star btw. I was exasperated!It wasn't until the guys at, All Around Auto in Westminster took the time to understand my car's issue, then promptly pointed me to RPM. I couldn't have been happier with the experience or the referral.John provided sound advice, explained in detail (and then some) the situation with my 2018 Hyundai Elantra GT Sport. 100% will be returning to Rains Precision Motorsports.