Rains Precision Motorsports

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

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.

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!!

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

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.

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.