Boerne's Trusted Performance Shop

Your vehicle deserves more than a guess-and-fix approach.

We combine old-school diagnostic intuition with modern precision tools — so every engine we touch runs exactly as it should, whether it's a daily driver or a weekend project.

Schedule Service (830) 249-2235

Local Boerne, TX

Full Service Repair & Performance

Honest No Surprises

Engine bay of a performance vehicle being worked on in a professional shop

Mechanic working on vehicle diagnostics in the shop

Quality Guaranteed

What We Do

Complete care for your vehicle — from routine maintenance to serious performance builds.

Engine Diagnostics & Repair

Check-engine light on? We trace the root cause, not just the symptom. Full diagnostic scans, compression tests, and precision repairs for all makes and models.

Performance Tuning

Unlock your engine's real potential. Dyno-tested tuning, intake and exhaust upgrades, and custom builds for street or track — done right the first time.

Pre-Purchase Inspections

Buying a used performance car? We'll put it on the lift, find the hidden issues, and give you an honest report before you hand over the cash.

Brakes & Suspension

Safe stopping power and precise handling start here. Brake overhauls, coilover installs, sway bar upgrades, and complete suspension refreshes.

Scheduled Maintenance

Oil changes, fluid services, filter replacements, and factory-recommended maintenance — the kind of care that prevents problems before they start.

Custom Fabrication

Need something that doesn't come off the shelf? Custom manifolds, fabrication work, and one-off solutions for projects that demand a unique approach.

Interior of Spreen Engines & Performance shop in Boerne, Texas

Close-up of precision engine work being performed

Years of hands-on experience serving Boerne and the Texas Hill Country

About Us

Built on skill, not shortcuts.

Spreen Engines & Performance started with a simple belief: your car should be fixed right, not fixed fast. Located right off Interstate 10 in Boerne, we've been the go-to shop for drivers who want honest answers and work that stands up to Texas roads.

We handle everything from routine oil changes and brake service to full engine rebuilds and performance builds. Whether you're driving a daily commuter or a weekend track car, we treat every vehicle with the same attention to detail.

Transparent pricing — no surprise add-ons

Quality parts, always — OEM or performance-grade

Clear communication before any work begins

Local shop with a personal touch

Why Spreen

Not every shop that says "performance" can deliver it.

There are plenty of places that will charge you for parts you don't need and tell you problems you don't have. We've built our reputation the hard way — by doing the work right, charging fairly, and treating every customer like a neighbor.

Diagnose first, repair second

We don't swap parts and hope. We find the actual problem, explain it plainly, and only then discuss the fix.

Performance is our specialty, not a buzzword

From bolt-on upgrades to built engines, we understand forced induction, cam profiles, and tuning — not just marketing terms.

Convenient location, real availability

Right off I-10 in Boerne. Call us directly and you'll reach someone who actually knows your car.

Performance engine build in progress at Spreen Engines shop

Vehicle on dynamometer for performance tuning

Customer Stories

Don't take our word for it — hear from the drivers who trust us with their cars.

Brought my Mustang in for a check-engine light that two other shops couldn't figure out. Spreen had it sorted in an afternoon and saved me hundreds in unnecessary part swaps.

Michael R. Boerne, TX

Finally found a shop that actually listens. They walked me through exactly what my truck needed versus what I could wait on, and never pushed me into anything I didn't need.

Jennifer S. San Antonio, TX

Had a custom intake manifold fabricated for my project car. The fitment was perfect, the welds were clean, and it actually performed better than the off-the-shelf alternative I was considering.

David L. Helotes, TX

Let's talk about your vehicle.

Whether you need a quick service appointment or want to discuss a performance project, we're here. Reach out by phone, email, or stop by the shop.

Address 32650 Interstate 10 W
Boerne, TX 78006

Phone (830) 249-2235

Email gcspreen@gvtc.com

Send us a message

Tell us about your vehicle and what you need — we'll get back to you as soon as we can.

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