Serving Pomona import & tuner owners · West Covina, CA

Import & Tuner Performance Shop — Pomona

Black Sheep Tuner Garage is about fifteen to twenty minutes east on the 10 or 60 from Pomona — a JDM and European performance shop building honest power for Pomona owners who want the work done right the first time.

// Pomona to dialed in. Close enough for the drive, serious enough to be worth it.

15-20 min east from Pomona JDM & Euro owner-led 4.9★ · 312 reviews
Worth the short drive

Why Pomona Drivers Make the Drive

Pomona has no shortage of shops that will flash a tune and hand you a slip. What it doesn't have on every corner is a builder who tells you the truth about your car before taking your money.

That's why Pomona owners point their cars about fifteen to twenty minutes east on the 10 or 60 to my shop in West Covina. It's a short hop across the east-county city with real drag-racing heritage, and the reason people make it is simple: they want a build spec'd to their real goal and their real fuel, not a parts-cannon aimed at a number they'll never use. I'd rather send you home with the honest version of your build than the expensive one.

Popular builds & real LA pricing

What Pomona Owners Build Most

These are the four builds I see most from Pomona — with real Los Angeles price bands, not “call for a quote.” Nearly every one starts with the tune; the rest is where you take it.

Where every build starts

Dyno & ECU Tuning

$400–1,200

The foundation of every build — a custom ECU calibration proven on the loaded dyno, safe for LA heat and 91 octane.

  • Flash, e-tune or full custom
  • Verified on the dyno
  • Logs you keep
⤢ Click to enlarge

Turbo & Forced Induction

$3,500–8,000+

Bolt-on to big-single turbo builds, sized to your real target and backed by the tune to hold it.

  • Turbo, fueling & cooling
  • Fabrication + install
  • Tuned as one system
⤢ Click to enlarge

Coilovers & Suspension

$1,900–4,000

Coilovers installed, corner-balanced and aligned — the difference between just lower and actually handling.

  • Install + ride height
  • Corner balance + align
  • Set up for your roads
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Exhaust & Downpipes

$700–2,500

Catback, downpipe or turbo-back that flows — with a straight answer on what's smog-legal here.

  • Catback to turbo-back
  • High-flow, CARB-honest
  • Paired with the tune
⤢ Click to enlarge

Real starting bands, not fixed quotes — the number moves with your platform, parts and power target. Bring me the car and the goal and you'll leave with a straight figure, in writing, before anything comes apart.

START YOUR BUILD
Built for how you actually drive

What Pomona Roads Ask of a Tuned Car

roads · Pomona dragstrip built for Drag Supra · GT-R tuned for 91 · E85

A car built for Pomona has to live in the real world around it — the streets around the Fairplex and the In-N-Out Burger Pomona Dragstrip, plus the LA heat and stop-and-go that every SGV build has to survive. That shapes how I spec a car: a tune that stays safe hot, cooling that holds up, and suspension set up for the roads you actually drive. Around here that often means the 2JZ Supra or the Nissan GT-R — but whatever you drive gets built to the platform, not a template.

Some Pomona owners take it further. The NHRA dragstrip at the Pomona Fairplex — the historic home of the Winternationals — is right here and running. If that's the direction you're headed, a drag build is the kind of build I set up for owners near Pomona.

Trusted by owners near Pomona

What Pomona-Area Import Owners Say

A 4.9-star reputation across 312 reviews, earned one honest build at a time — including owners right around Pomona.

★★★★☆

Build took a little longer than I hoped, but he was honest about the parts delay the whole way and never left me wondering. The work itself is flawless. Would rather wait and have it done right.

Jon M. · Pomona · Evo
★★★★★

My AMG needed cooling before more power and he told me that up front instead of just flashing it for a quick sale. That's the advice that saves your engine. Runs cool and pulls hard now.

Tyler B. · Whittier · Mercedes-AMG
★★★★★

Took my N54 here after two shops chased a boost problem and just kept tuning around it. He found a cracked charge pipe in an afternoon and had it right. Wish I'd come here first.

Kevin L. · Pasadena · BMW 335i
Easy to reach

Getting to the Shop From Pomona

The shop  ·  555 S Glendora Ave, West Covina, CA 91790

From Pomona  ·  about fifteen to twenty minutes east on the 10 or 60 on the 10, 57, 60 and 71

Between  ·  Diamond Bar, Walnut, Claremont and Chino

Hours  ·  Mon–Fri 9am–6pm · Saturdays by appointment

Call ahead  ·  (626) 555-0183 — so I can give your car real attention when you arrive instead of catching me mid-build.

Where I serve

Proudly Serving Pomona & Greater Los Angeles

My shop is in West Covina, in the San Gabriel Valley, and owners bring me builds from Pomona and across the metro. Tap your city:

Pomona owners ask

Questions Pomona Drivers Ask Us

Is Black Sheep worth the drive from Pomona?
For an honest build, yes. The shop is about fifteen to twenty minutes east on the 10 or 60 from Pomona on the 10, 57, 60 and 71 — a short run, and owners come from across greater Los Angeles for the same reason: a builder who tells you the truth about your car and backs the work on the dyno. A tune done right once beats a cheap one you pay to fix twice.
Do you tune Pomona daily drivers, not just race cars?
Most of what I build are street cars — dailies and weekend cars for Pomona owners who want more power that still behaves in traffic and survives the streets around the Fairplex and the In-N-Out Burger Pomona Dragstrip and the heat. A good daily build is spec'd to stay reliable, not just to hit a dyno number, and that's most of the work that comes through the door.
Do you work on both JDM and European cars?
Both. Whether it's a Subaru, Honda, Toyota or Nissan or the BMW, VW-Audi, Mercedes and Porsche side, I build them all — and knowing both is how I keep from forcing a Pomona owner's car into a build that fits my comfort zone instead of their goal.

// Pomona to dialed in. Let's build it right.

From Pomona to Dialed In

Make the short drive from Pomona and let's talk about your car — the platform, the goal and the fuel. I'll tell you honestly what it needs, then build it to a number you can stand behind.