As a mechanic Josh is great but needs to work on his customer service. When issues happen that's when your customer service shows! read more

JRG Motorsports has never let me down. Josh and Adam make a solid team and I only trust them to work on my car. If you are in or around the Bay Area and want to beef up your lsx/ltx ride check out JRG Motorsports. They are simply The Best! read more

JRG Motorsports - Track day at Sacramento Raceway #JRGBuilt #JRGMotorsports - Auto Repair Near Me

I have a Corvette ZR1 and was in quite a bind. Dublin Chevrolet told me I needed a new supercharger and unfortunately at the time I did not know Josh the owner of JRG. When the dealer installed the new supercharger, something seemed not quite right. I started to smell gasoline and at the same time the car slowly became more difficult to start. I went on the Corvette forum and explained the problem. The dealer I bought it from Abel Chevrolet is phenomenal but it's very far from my house. I was looking for a local shop with the expertise as good if not better than the dealer but not as costly. As I'm writing this, it almost seems like a ridiculous ask. Maybe that's why I only received one response. Thankfully it turned out to be the only response I needed. A super cool guy named Manny told me JRG motorsports build his 900+ rear wheel horsepower ZR1. Manny gave me Josh's number and I called him immediately. The car was now undrivable as it wouldn't start. From reading through the forums I thought it sounded like a fuel pump. I asked Josh if he could install new fuel pump. Fuel pumps on this car are very expensive and difficult to get to. He said he would feel much more comfortable if you could look at the car before just ordering a new fuel pump. This is where it gets exceptional. Josh happens to live in the same town that I do and stopped by my house that night after he closed the shop. This is why I call him the Rainman of American muscle. He smelled the gas, looked at the supercharger, and said when the dealer installed your supercharger they didn't install the fuel rails in the proper order. This guy knew exactly what the dealer did wrong just off the top of his head. He figured out the starter was worse than a shot. It was creating an arc of electricity that was relatively close to the fuel leak. He bought the starter and I bought the fuel rails. They don't put a premium on parts. Josh installed them both the same day. When I picked up my car I met his partner who is also amazingly knowledgeable. These guys can create custom exhaust systems and tell you the size and quantity of each bolt from memory. If you're looking to do anything to a high performance Chevy, Cadillac, or even Dodge, I cannot recommend these guys enough. If you're willing to shed a tear, they might even be willing to work on a Ford. To the bad review on here about the tuner, I think that was too harsh on JRG. In my humble opinion, that's a minus one star at the most. It just sucks that when you're a smaller business, one bad review can really mess up your rating. That happened to another local shop when this lady complained about how they wouldn't just cut the wire to her alarm speaker. I guess she likes the malfunctioning alarm drawing power every single day. Tuners are very particular. It's a science and an art. They like tuning cars built by people who really know what they're doing. Matt the tuner likes and trusts the work JRG does. If I wanted to tune my car now it's about a 2 to 3 month wait and worth it. JRG is 5 star plus! read more

Make no mistake, Josh and his crew are excellent wrenches. They do a crap-load of CTS-V's, Vette's , classics and everything in between. They put out a lot of work, most of it just from word of mouth from various forums and other social media. Check them out on insta-gram #jrgbuilt. I had them install a Magnuson Heartbeat on a Grand Sport with full exhaust. Their rates are extremely fair, and the work was excellent. Never any issues, and the car was done on time and runs great. No issues, very satisfied...makes 537 at the wheels and drives like stock. Matt of GP Tuning, is who Josh often works with. Matt is a World class tuner, and even offers his own cam packages - many of which hold records and are used across the Nation. Both are well known for their great builds. Both of them know their stuff, and produce some smokin' cars. Matt just has an email and he's booked for several months out. If you want some true pro's to help you out both Josh at JRG and Matt are worth the drive. Check out #jrgbuilt. read more

Josh, the owner of JRG Motorsports, is a long time LSx engine specialist. As I recall, he has been an LSx guy for at least a dozen years. He did a heads/cam install for me a few months ago. Their work is scheduled and completed in a timely fashion. I have had no problems with the setup, and my car is running great. Josh's pricing is very fair, he has a great attitude and delivers excellent customer service. Recommended! My experience with the tuner affiliated with JRG Motorsports is the complete opposite of the other reviewer. The tuner, Matt, was easy to communicate with, friendly and does great quality tuning work. Matt spec'ed out all my engine mods, did all of the ordering and coordinating of parts delivery and was accessible throughout the process. He responded to all my e-mails within minutes and gave me his cell number in case I needed anything.The other review is so far from my experience with Matt, that I have a hard time believing it. As an example, while my car was at JRG Motorsports, there were 2 Caddy CTS-V's there that came in from hundreds of miles away to have upgrades done by Josh and previous tuning issues fixed by Matt. People routinely bring their cars to Matt for tuning, and JRG for engine work, from all over California and even other states. I brought my car in from Reno, Nevada for their high-quality work. read more

JRG Motorsports - Heads, Cam and Headers Package install at JRG. Tuned by Matt of GP Tuning. Runs Great! - Auto Repair Near Me

Well the mod bug bit me again and Josh pointed me in the right direction once again. I also had a small issue arise (non related) and Josh helped me out once again. Definitely recommend jrg motorsports for all your LS needs! (And more) read more

Another satisfied customer. Without people like josh and adam, the world wouldn't be the same. Josh went the extra mile for me because of my mistake and was patient with me from start to finish. That means alot. A true dude in the industry. Once again I appreciate everything you did for me Josh. read more

Josh/JRG just finished my truck and all I can say is that I can attest to every 5 star review JRG got. Josh knows his stuff and tells you exactly what you want/need depending on what your looking to get out of your vehicle and wont try to upsell or anything like that. JRG will be the only place ill be taking my vehicle as long as I own a GM. read more

Very busy but seems knowledgeable & reasonably priced which is more then I can say about most shops left in Cali.

Josh is a great dude he knows his stuff but the 2 stars if because of his wack as$ tuner Matt dealing with that dude is a pain in the rear. I had gotten referred to him by a friend of mine so I emailed the dude To set something up and man I tell you he is one complicated dude to deal with he did tune my car and it just wasn't tuned to my liking..anyways to make the story short never went back to this place for my tune and I ended up going with a OG in the tuning game out of the area and he left my car running like a champ..plus he was just a much better person to deal with. They can keep getting their friends to leave reviews and make it seem all nice and dandy but for tuning this place is not where it's at. read more

Josh is amazing. If you need any work done to your vehicle he's the man. Give him a call. He's super friendly and straight forward. He's an expert at what he does and you will not be disappointed. I would give him 10 stars if i could. read more

One of, if not the best GM Mechanics I've ever met. Josh is the type of guy that will not BS you and will work with you specially if you have a busy schedule. He is the type of person that will never up-sell you on anything and will definitely guide you with your build. You tell him what you want done and he will tell you how to get it done properly. Again I highly recommend this guy. Thanks again for working on the orange vette. read more

Got my pushrods measured for my custom cam. Cool guy he's not an asshole if you have questions on how to do something he will tell you. Highly recommend. read more