Serving Whittier import & tuner owners · West Covina, CA

Import & Tuner Performance Shop — Whittier

Black Sheep Tuner Garage is about twenty minutes southwest on the 605 from Whittier — a JDM and European performance shop building honest power for Whittier owners who want the work done right the first time.

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

20 min SW from Whittier JDM & Euro owner-led 4.9★ · 312 reviews
Worth the short drive

Why Whittier Drivers Make the Drive

Whittier 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 Whittier owners point their cars about twenty minutes southwest on the 605 to my shop in West Covina. It's a short hop across the Uptown-and-hills community on the southwest edge of the 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 Whittier Owners Build Most

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

roads · Turnbull Canyon built for Roll Racing WRX/STI · N54/N55 tuned for 91 · E85

A car built for Whittier has to live in the real world around it — Whittier Boulevard, the hills of Turnbull Canyon, and the 605 corridor, 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 the BMW N54 and N55 — but whatever you drive gets built to the platform, not a template.

Some Whittier owners take it further. The long 605 and 72 corridors invite a top-end pull — keep it to a sanctioned roll event, not the street. If that's the direction you're headed, a roll-racing build is the kind of build I set up for owners near Whittier.

Trusted by owners near Whittier

What Whittier-Area Import Owners Say

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

★★★★★

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
★★★★☆

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
Easy to reach

Getting to the Shop From Whittier

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

From Whittier  ·  about twenty minutes southwest on the 605 on the 605, with the 72 and 5 close by

Between  ·  La Habra, Santa Fe Springs, Pico Rivera and Hacienda Heights

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 Whittier & Greater Los Angeles

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

Whittier owners ask

Questions Whittier Drivers Ask Us

Is Black Sheep worth the drive from Whittier?
For an honest build, yes. The shop is about twenty minutes southwest on the 605 from Whittier on the 605, with the 72 and 5 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 Whittier daily drivers, not just race cars?
Most of what I build are street cars — dailies and weekend cars for Whittier owners who want more power that still behaves in traffic and survives Whittier Boulevard 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 Whittier owner's car into a build that fits my comfort zone instead of their goal.

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

From Whittier to Dialed In

Make the short drive from Whittier 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.