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I called to get some information on customizing my new vehicle, what I received is very respectable answers and tips regarding my vehicle. They pointed me to a website to search out the grille and leveling kit I was requesting, I will be returning once my order is delivered for them to install.  Mark V. Concord CA 6/22/17

Thank you, Gary, Ralph, Matt, Chris, and all the rest of the team at Extreme. You guys always take great care of my jeep. I appreciate your attention to detail and knowing my jeep's in great hands.  Mark L. Brentwood CA 3/1/17

Gary and Mart are awesome.  I took my 2016 Tahoe in this morning to get e level kit looked at they went above and beyond the call to come out and look at it with a quick adjustment they fixed it. Mind you they were not the ones who installed it I took it Les Schwab. I rushed it I knew I should've taken it here in the first place. I'm writing this review because this kind of service is very hard to find. I'll be referring to Extreme Gary and Mat are two honest people. Thank you guys.  Dee A. Antioch CA 1/26/17

If you want to work with the most respectful, easy going and knowledgeable guy......go see Matt........he is what keeps me coming back to this place!  Mark Y. Medford OR 8/26/16

Took my 07 JK in because I had experienced a death wobble after shipping it from Kauai. My JK only has 23,000 miles and I had experienced the DW a hand full of times. After talking with Extreme Motorsports and doing a little research I believe that the stock front end parts are cheap and won't hold up to doing stupid things like tree removal with a winch or pulling tractors out of the Hawaiian mud.  My Brother put all new synergy parts on for me and I took it here for final adjustment and alignment. They adjusted the track bar, corrected the tire pressure, balanced and rotated my tires, alignment in the shop next to theirs, adjusted the steering we flipped, adjusted my sway links, greased all my tie rod ends, and even my new ball joints.  A friend recommended this shop and now I do too.  Thomas T. Brentwood CA 5/21/16

Thank you SO MUCH Extreme Motorsports!! I had wheels and tires and a leveling kit put on my '07 Tundra along with a Flowmaster exhaust and I couldn't be happier! The price was better than all of the local tires shops I checked and the service was OUTSTANDING! Gary went above and beyond to make me happy and the guys at the shop were very personable and eager to do whatever it took to make my experience with them a positive one. The ride is great, the exhaust sounds 1000X better than the stock one and of course the wheels I picked out and the tires Gary suggested make my truck look like a bulldog! All my future customization will be done by Extreme Motorsports. Thanks again, fellas!!  Chris M. Brentwood CA 12/9/15

A big Thank you to Jason and Gary at Extreme for lifting my 15 Superduty earlier this week. They delivered everything they promised at the best price out there. Love my truck and lift. Rides better than stock and I will definitely recommend them to anyone interested in lifting their truck or jeep.  Eliran E. Indian Wells CA 10/30/15

Gary,  Thanks so much for being so professional and a good businessman and taking care of me and my truck. We'd be lost with what to do with our trucks if it wasn't for you.  You took care of the tundra in such a quick professional friendly manner plus the work is good.  It's amazing what the difference the new tie rods and spindles made. I haven't had the sensor go off once yet. It also has a lot better turning radius. I read from others that it improved the turning radius and it did. The biggest help the upgrade did was take away ALL the bump steer and the feel of the tires fighting each other when you drive. It used to feel like you were pushing and dragging big 35"s around now it feel the power steering is twice as powerful. It's the easiest smoothest steering lifted truck I've ever driven.  I'm working on some front bumper designs to go over with you.  You're a hell of a businessman but also a brain when it comes to trucks. I feel bad for anyone who has the inferior bds lift junk.  Thanks for everything Gary. It really made a big difference. The rear shocks also react better loaded or unloaded.  Scott B. Clayton CA 1/20/14

I brought two of my previous trucks to Extreme Motorsports and have recommended them to several friends who have all been satisfied!  After recently relocating to Southern California I purchased a truck and desired modifications.  After calling several places locally and not satisfied with their recommendations, prices, and overall service, I called Gary at Extreme Motorsports.  Once again, Gary took care of me!  I drove 1,000 miles round  trip to have my work completed by Extreme Motorsports!  Very satisfied!!!  I would recommend them to anyone looking for quality service and great customer service.  Cassie P, Palm Springs, CA 10/10/13

Just got my truck lifted! Great experience from start to finish with these guys. Gary really went out of his way to make sure my Chevy was everything I expected it to be. I'll be returning soon for more mods!  Kenny H. Brentwood, CA 10/3/2013

Gary does top-notch work! Have had trucks lifted, tires installed etc. Always a good price and on time!!  Steve S. Discovery Bay, CA 4/22/13

We have been going to Extreme for years now and have been nothing but thrilled with all aspects of their service.  If we need tires they always have the best pricing and have them ready right away!  They have lifted 2 of our vehicles in the past and did a leveling kit on another. I have even recommended them to our friends who live in Vacaville and they have come all the way from there to have Extreme to lift kit on their new Tundra.  I get nothing but compliments on the look and people asking where we got them done.  There have never been any problems with anything Extreme has done and think they are truly wonderful people!  I will forever bring my business to them for that small town, small business approach to customer service!!!  Kriten F. Knightsen, CA 6/01/12

Gary and crew have helped me out with several vehicles in the 11 years I've been going to them. Best products around and best service by far! Gary's wife Jena is such a charming and grounded person, as well. All around great experience.  Joe H. Long Beach, CA 5/10/13

I purchased my 2008 Jeep JK in 2009, and immediately began looking for a shop to assist me with modifications and installation.  I started asking around Antioch & Brentwood, and the word on the street was that I shouldn't take it anywhere but to Gary Graham, at Extreme Motorsports, because Gary knows trucks. After checking out their shop, and talking with Gary and Ralph, I could tell that these guys knew Motorsports.  I appreciated how direct Gary was with me.  It is easy to come in with some dreams, not knowing about all of the things that can come up along the way, and Gary was quick to keep my vision alive, without letting me waste money.  He wanted to know "how" I was going to use my Jeep, and then asked questions that led to how I may evolve along the way.  He led me in the right direction! Gary and the guys at Extreme Motorsports have forgotten more about four-wheel drives and Motorsports of all kinds than most people will ever learn! People go out of there way every single day, to blast businesses because of a tough experience, a mistake made, or a service that wasn't delivered as promised.  Well, this review should reflect that Gary and Extreme Motorsports does business the right way, and in the rare occurrence when they do make a mistake or something isn't to the customer's satisfaction, Gary goes beyond to make things right, which are over and above the customer's expectation. Very down to earth, direct, experienced, knowledgable, professional, and high-quality work, makes Gary and his team at Extreme Motorsports THE choice in the Bay Area and California, for your car/truck needs!  Rick C. 5/03/13 Manteca, CA

This is Your one stop Shop for lift kits, rims, tires, accessory ..etc ... Gary is great and so is their staff. I have only positive things to say about Extreme Motorsports.  Luigi D. San Ramon, CA  4/11/12

Gary and his team bend over backward.  In my line of work, I never know when I'm going to have a day off to get my work truck serviced or tires put on.  He always seems to fit me in.. All of my vehicles needs are taken care of there. Tires, service, or whatever it's handled.   Pete P. Oakley, CA 3/15/12

I've lived in Discovery Bay for 32 years.  I am a small business owner and I believe I understand what it takes to have a successful business.  I've used Extreme Motorsports on many occasions, not only for lift kits but other work on my Mini and Suburban.  Gary is honest and very knowledgeable, characteristics that can be difficult to find today. I also know first hand, if anything goes wrong with their work, they will stand behind it 110%. I do agree with Kyle M, sometimes when it is slow, and especially on Friday, they might close a little early, as long as they are not expecting anyone.  For Bailey, from your post it sounds like you may have called one of their customers because I know, if the customer will permit, they put their stickers on every vehicle they work on.  Paul L. Discovery Bay, CA 2/23/12

I have dealt with Extreme Motorsports several times and have always had great service with good prices. They have been great, with replacing all four of my trailer tires one at a time when they blew out from age. Great job guys.  Eric S. Brentwood, CA 2/14/12

Place is amazing, I've spent a countless amount of money there and have always gotten exactly what I wanted. Best prices guaranteed as I've spent a ton of time shopping around. The way they stand behind their service and parts is amazing, hassle free. Couldn't ask for more, keep it up down there! I'll be counting on you for my next build!  Jason W. Brentwood CA 1/09/12

I have come here for years, service is great and prices good. They have helped me with everything from a trailer tire to a full build.  If you want it done right by a company that stands behind their work. This is your place. Jason J. Tracy CA 11/05/11

I was looking for a place to get new tires and a lift kit for my F150 and remembered the folks at Extreme Motor Sports. They completed a rhino style liner in my F 150 the winter before. The employees were really nice and the advice and end product for the liner was fantastic!! So I used them to give recommendations for tires and the lift kit. They gave expert advice; as I believe that is their specialty. They saved me hundreds of dollars on the setup and the truck looks great and handles great!!  Thank you, Gary and the team at Extreme!  Michael S., Pleasanton, CA 9/26/11

This shop actually cares about their customers, other shops just want your money.  I had spent hours trying to find a boost kit for my 1995 Jeep Grand Cherokee Laredo and was told that it would cost me between $1,200 to $1,400 to boost my truck between 1¼ to at best 1½ inches and shocks were a must. By pure chance, I passed by Extreme Motor Sports in Brentwood and stopped in to ask some questions about how I could do a boost and how much higher I could expect to raise my jeep. I was greeted by the owner… never the less, and treated like a real customer… go figure, a shop that cares. He is the nicest person you would ever want to meet and is very into the daily operation of this shop. I asked for a round estimate so that I could budget for the work, as I knew I wanted this shop to do the work, no questions!!! I called a few weeks later and spoke to Mike and he had done his homework!!! He spent hours trying to find the best application. Guess what he found it and not garbage, but a true solution that was safe. The work was done on time and on budget. When I returned later in the day to pick up my truck Mike and I did a walk around my truck, and he explained what was done and how I could make adjustments to raise and lower with the application that was installed. While the final touches were being performed, the owner came out again to greet me and we spent time in the showroom just talking and having a great time. This owner is very into this business and you can tell by his enthusiasm when it comes to making sure that you are more than happy with the work. I guarantee that you will leave this shop more than satisfied, in fact, you will want to tell your friends, and I also guarantee you will be a customer for life. Again THANK YOU to everyone at Extreme Motor Sports for doing a fantastic job on my Jeep, I will see you very soon for more fantastic work. Sincerely, Jamie Dutton - Orinda, California