Performance Upgrades We Offer
For over 40 years, JBA has been San Diego’s trusted name for performance. Unlike typical shops, we don’t sell hype—we build results. Every upgrade is done in-house by technicians who care about craftsmanship, safety, and long-term drivability. That’s why thousands of local drivers trust us with their classics, muscle cars, late-model performance vehicles, and full custom builds. If you’re ready to unlock the next level of performance, our team is here to help you build something you’re proud of.
Suspension & Handling Upgrades
Our suspension upgrades transform stock handling classics into race-ready stability, dialing in responsiveness through blending a tailored selection of modern specialty equipment available for your specific application. Our engineering team will assemble the correct combination of coil-overs, sway bars, and chassis tuning tailored to your vehicle’s intended purpose.
Performance isn’t just about going fast—it’s about staying in control. Our suspension upgrades include coilovers, shocks, sway bars, bushings, control arms, and full chassis enhancements that transform how your vehicle feels on the road. We tune each setup to match your driving style, whether you're building a canyon-carver, drag car, or a street-focused cruiser.
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Brake System Upgrades
We equip rides with aggressive stopping power via multi-piston calipers, drilled and slotted rotors, and brake pads that bite hard and stay cool.
More power demands more braking. JBA installs proven big-brake kits, performance pads, rotors, and complete hydraulic upgrades that give you confidence at any speed. Our team makes sure your stopping power matches the performance you’re chasing.
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Engine Performance Upgrades
Engine builds are where our craftsmanship shines, with 40 years of experience and testing for the street and on the track, JBA blueprints engines from naturally aspirated to full forced-induction setups, each optimized for torque, horsepower, and reliability.
From mild refreshes to full custom engine builds, JBA delivers horsepower the right way—through craftsmanship, machining accuracy, and proven parts combinations. Whether you’re after a stroker kit, cam upgrade, forged internals, or a complete long-block build, our machinists and ASE-certified technicians treat every engine like it’s our own. No shortcuts. No guesswork. Just reliable power designed to last.
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Power Adder Upgrades (Superchargers / Turbos)
Add JBA’s power adders, like superchargers and nitrous kits, and take your vehicle from its humble factory specs to the street-dominating beast you are looking for. Superchargers, turbos, nitrous systems, and supporting fuel upgrades—if it adds horsepower, we install it. Every power-adder package is calibrated to deliver safe, reliable performance backed by our decades of tuning experience. Reliability always comes first. Big power comes second.
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Why Our Performance Upgrades Stand Out
For four decades, JBA has been the shop San Diego drivers trust for real performance gains—not just bolt-on noise or hype. Our upgrades are engineered to deliver measurable improvements in horsepower, torque, throttle response, stability, and braking power. Every system we install is carefully matched to your vehicle and your goals, whether you’re building a reliable street machine, a canyon carver, or a weekend track car.
Our technicians combine old-school craftsmanship with modern diagnostic tools to make sure every upgrade performs exactly how it should. The result is a build that feels faster, handles better, and stays reliable long after it leaves the shop. That’s why thousands of drivers—from classic car owners to late-model enthusiasts—trust JBA for their performance upgrades.
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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.