Serving Covina import & tuner owners · West Covina, CA

Import & Tuner Performance Shop — Covina

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

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

5 min east from Covina JDM & Euro owner-led 4.9★ · 312 reviews
Worth the short drive

Why Covina Drivers Make the Drive

Covina 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 Covina owners point their cars about five minutes east on the 10 to my shop in West Covina. It's a short hop across the near-ring San Gabriel Valley, 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 Covina Owners Build Most

These are the four builds I see most from Covina — 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
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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
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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
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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 Covina Roads Ask of a Tuned Car

roads · SGV foothills built for Canyon WRX/STI · GR86/BRZ tuned for 91 · E85

A car built for Covina has to live in the real world around it — Citrus Avenue, Badillo Street and San Bernardino Road, 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 Subaru WRX and STI or GR86 and BRZ — but whatever you drive gets built to the platform, not a template.

Some Covina owners take it further. The foothills and Glendora Mountain Road are only a few minutes further north. If that's the direction you're headed, a proper canyon build is the kind of build I set up for owners near Covina.

Trusted by owners near Covina

What Covina-Area Import Owners Say

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

★★★★★

Honest, genuinely skilled, and doesn't treat you like a walking wallet. That combo shouldn't be rare but it is. I send everyone I know with an import his way.

Chris V. · Covina · Civic Type R
★★★★★

I'm not a car guy, I just wanted my GT-R done right. He never once made me feel dumb for asking questions, and the car's been perfect since. Already sending my brother in with his BMW.

Nathan K. · Rowland Heights · GT-R
★★★★★

First shop that gave me a real number up front and stuck to it. Kept me updated the whole build instead of leaving me guessing. My GR86 finally feels finished.

Anh T. · Alhambra · GR86
Easy to reach

Getting to the Shop From Covina

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

From Covina  ·  about five minutes east on the 10 on the 10 (with the 210 and 57 close by)

Between  ·  West Covina, Glendora, Baldwin Park and Azusa

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 Covina & Greater Los Angeles

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

Covina owners ask

Questions Covina Drivers Ask Us

Is Black Sheep worth the drive from Covina?
For an honest build, yes. The shop is about five minutes east on the 10 from Covina on the 10 (with the 210 and 57 close by) — 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 Covina daily drivers, not just race cars?
Most of what I build are street cars — dailies and weekend cars for Covina owners who want more power that still behaves in traffic and survives Citrus Avenue 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 Covina owner's car into a build that fits my comfort zone instead of their goal.

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

From Covina to Dialed In

Make the short drive from Covina 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.