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October 2023 by 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!!!
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October 2023 by m.h
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.
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October 2023 by Ryan Heinitz
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 tuning
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September 2023 by 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 everythingServices: Exhaust
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April 2023 by 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!!
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April 2023 by 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!
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April 2023 by Kat Reilly
Just the kindest people. I was going through a hard time and they accommodated me financially and also assisted me with some additions that made my life so much easier. They are wonderful!
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March 2023 by Andy Triplett
Glenn and his team at RPM did an amazing job on my Camaro! Absolutely love it and highly recommend using them! Very happy!
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February 2023 by GeorgeFlippin
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.
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December 2022 by Jason
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
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November 2022 by Timothy Perkins
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 tuning
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September 2022 by Kyle Niedzielski
Was a very great experience drove all the way from the springs I went here after multiple recommendations to get my 2010 challenger RT cammed with long. tube headers and a torque converter I was very pleased with the sound and performance of my car after taking it here I got exactly what I was looking for shout out to the rpm crew for being very knowledgeable and real genuine good people
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September 2022 by Robert K
Great Tuner but takes months to get a tune installed. Cost over $2000 to tune for the altitude only. Removed decals from the shop who built the car and added their own.
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August 2022 by Steven Stott
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.
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July 2022 by Wes S.
Made an APPOINTMENT to have my Jeep towed in for low compression, two weeks go by and I don't hear anything so I give them a call and they tell me they haven't gotten to it yet (why did I make an appointment then?!) Ok whatever, I wait another two weeks and they finally call me to tell me they THINK there's some broken springs in the head but need to tear it down, I give them the ok on the tear down. I wait ANOTHER 3 weeks and then they call me to tell me that my car is ready! Wtf?! Ok so what was wrong with it? What kind of parts did you put in it? What if I wanted them ported and polished? Zero communication, they just decided to fix it. I didn't give the okay to fix anything! Just to tear down the heads! So I ask what was wrong, I was told there were broken springs and they replaced them with all forged parts, and the wait time on port and polish would be months and same with built thitek heads. Which is complete b******** bc I called around.... So I ask how much the bill is and the owner tells me $8k!! I tell them I didn't authorize any repairs and he says they can tear it back down but still going to be $4k. At this point I don't don't want them even touching my car anymore. I bite the bullet and pay $8k.. not even 2 weeks later I notice there is a substantial oil leak in my garage I take it to another shop and they tell me I have a rear main seal leak and missing/mismatched bolts on my oil pan!Thank god I was watching my oil pressure or these dipshits would've made me seize my built motor!! At this point I'm livid, so I call them to tell them they f***** up. The owner tells me that they didn't go anywhere near the rear main or oil pan. Well who the f*** did then?! It didn't have any leaks before I brought it to them and no other shop has touched my car since the motor was built. The block was painted so you can tell someone was in there because they put in the mismatched bolts in the oil pan. They of course denied, denied, denied...GO FIGURE RIGHT?! so now I get to pay another few thousand to have my rear main done bc of these crooks. Basically their customer service is a f****** joke just like their workmanship. Save yourself ALOT of money and a HUGE headache and just AVOID AVOID AVOID this place!! Wish I could give 0 stars!! Go to CAP performance in denver if you want someone that knows wtf they are doing and are honest and stand behind their work. Customer service is 10000 times better also...
