Speed Shop (noun): More than a parts store or a place to get your oil changed. It's where power is made, problems are solved, and horsepower is built. From diagnostics to dyno runs, bolt-ons to full builds—a true speed shop does it all.
We've spent over 40 years tuning, building, and perfecting cars for people who expect more than stock. Whether you drive a late-model Mustang or a vintage GTO, we don't just fix—we upgrade.
You shouldn't have to jump from one shop to another. JBA handles the full stack of performance upgrades, diagnostics, and fabrication—all under one roof.
Our customers aren't looking for fluff—they're looking for results. Hear from builders, tuners, and enthusiasts who trust JBA to do it right the first time.
★★★★★“I have a tri-power setup on my ’67 Cyclone and these guys went above and beyond to get it dialed in and make more power. Everyone was a class act and I will not let anyone else turn a wrench on my car!”
Ryan Doherty
★★★★★“Seriously happy with the job you guys did on our 2014 Mustang! Been tearing up the roads ever since! Thanks for the help. We’ll see you soon for the supercharger!”
Martha Glad
★★★★★“Customer service is incredible. Bruce and all the guys behind the scenes are always pleasant! I have 30,000 miles on my build from them (Stage II) in my ’97 Cobra and it still runs incredibly. JBA or bust.”
Dylan Milroy
Whether you're starting a build or chasing down a performance issue, we're here to help. Bring your car in for a diagnostic or schedule a custom consultation—and let's get to work.
5675 Kearny Villa Road, San Diego, CA 92123
