Performance & Modified Smog Check in Los Angeles

🏁 PERFORMANCE

Performance & Modified Smog Check in Los Angeles

Modified vehicles need CARB Executive Order (EO) numbers on aftermarket parts. We verify EO matches before testing.

What to know — Performance smog rules in California

Do modified or performance vehicles pass California smog? A modified or performance vehicle can pass California smog only if every emission-related component carries a valid CARB Executive Order (EO) number. Parts without an EO cause an automatic visual inspection failure, regardless of tailpipe results.

CARB EO numbers are issued per part, per vehicle application — the correct EO must match the installed part to that specific vehicle's year/make/model.
Common modified-vehicle fails: cold-air intakes without EO, catback exhausts replacing catalyst sections, ECU tunes without EO certification.
Aftermarket catalytic converters must be CARB-compliant for the specific vehicle — aftermarket cats without EO are an automatic fail.
Engine swaps require the donor engine to be the same year or newer than the vehicle being smogged, and all emissions equipment intact.
BAR Referee program handles vehicles with complex modification situations that a standard STAR station cannot certify.
OBD-II scan reveals the presence of aftermarket tunes that may have altered fuel/spark/EVAP calibrations.

Per CARB Executive Order certification database and BAR visual inspection protocol.

About Performance & Modified Vehicle Smog Check at Los Angeles STAR Smog Check

Specialized performance & modified vehicle smog check performed at Los Angeles STAR Smog Check, our Los Angeles location.

Visit us for performance & modified vehicle smog check

Address: 1600 W Olympic Blvd, Los Angeles, CA 90015
Phone: (213) 302-2595
Website: https://www.smogcheckla.com/
Hours: Mon-Fri 8 AM – 6 PM · Sat 8 AM – 4 PM

What we do

California-required smog inspection
OBD-II readiness verification
Same-day electronic DMV certificate filing
Walk-ins welcome (no appointment needed)
Bilingual English / Spanish service

*Regenerated 2026-05-25 from GBP-verified canonical data.*

Frequently asked questions

What is a smog check?

State-required emissions inspection. Checks tailpipe and OBD systems. Biennial for 8-plus year vehicles.

How much does a smog check cost in California?

Typical range $30-$90. $8.25 certificate fee separate. Diesel/hybrid often higher.

How often do I need a smog check in California?

Every two years for most vehicles. At sale or transfer. First 8 years exempt for new cars.

How long does a smog check take?

About 20 minutes for most cars. Longer for diesel and hybrid. Varies by readiness monitor state.

Do I need an appointment for smog check?

Walk-ins welcome at most stations. Appointments available for convenience. Morning slots fill fastest.

Visit LA STAR Smog

Address

1600 W Olympic Blvd
Los Angeles, CA 90015

Phone

(213) 302-2595

Hours

Mon-Fri 8 AM – 6 PM, Sat 8 AM – 4 PM

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Other vehicle categories

All vehicle types serviced at LA STAR Smog.

Areas we serve

168 named places within about 8 miles of this station, nearest first. Click one for the distance and directions.

Neighborhoods

Nearby cities

Vernon East Los Angeles Beverly Hills Huntington Park West Hollywood Maywood Commerce Inglewood Glendale Culver City

Also serving: Alvarado Terrace Historic District (Los Angeles), Saint James Park (Los Angeles), Adams-Normandie (Los Angeles), Jewelry District (Los Angeles), Jefferson (Los Angeles), Old Bank District (Los Angeles), Gallery Row (Los Angeles), Angelus Vista (Los Angeles), Arlington Heights (Los Angeles), Toy District (Los Angeles), Skid Row (Los Angeles), West Adams Terrace (Los Angeles), Angeleno Heights (Los Angeles), Civic Center (Los Angeles), Los Angeles, Wilshire Park (Los Angeles), Pueblo de Los Ángeles (Los Angeles), Wilton Historic District (Los Angeles), New Chinatown (Los Angeles), Victoria Park (Los Angeles), Windsor Square (Los Angeles), Bicycle District (Los Angeles), Naud Junction (Los Angeles), Nevin (Los Angeles), Lafayette Square (Los Angeles), Virgil Village (Los Angeles), Wellington Square (Los Angeles), Vermont Square (Los Angeles), Dogtown (Los Angeles), Melrose (Los Angeles), Sunset Junction (Los Angeles), Larchmont (Los Angeles), View Park-Windsor Hills, Mid-City Heights (Los Angeles), Mid-Wilshire (Los Angeles), Central-Alameda (Los Angeles), Crenshaw (Los Angeles), Elysian Heights (Los Angeles), Vermont-Slauson (Los Angeles), Wildasin (Los Angeles), Angeles Mesa (Los Angeles), Cloverdale-Cochran (Los Angeles), Alsace (Los Angeles), Chesterfield Square (Los Angeles), Crenshaw Manor (Los Angeles), Leimert Park Village (Los Angeles), Silver Lake Heights (Los Angeles), Thai Town (Los Angeles), Elysian Valley (Los Angeles), Franklin Hills (Los Angeles), Dayton Avenue (Los Angeles), Park La Brea (Los Angeles), Harvard Park (Los Angeles), Wilshire Vista (Los Angeles), Cypress Park (Los Angeles), Van Ness (Los Angeles), Little Ethiopia (Los Angeles), Village Green (Los Angeles), Picfair Village (Los Angeles), Manchester Square (Los Angeles), Carthay (Los Angeles), Windsor Hills (Los Angeles), Vermont Knolls (Los Angeles), Fairfax District (Los Angeles), Sentous (Los Angeles), South Carthay (Los Angeles), Hyde Park (Los Angeles), Baldwin Vista (Los Angeles), Whitley Heights Historic District (Los Angeles), Whitley Heights (Los Angeles), Hollywood Dell (Los Angeles), Mount Washington (Los Angeles), Crestview (Los Angeles), Rose Hill (Los Angeles), Montecito Heights (Los Angeles), Culver City Arts District (Culver City), South Robertson (Los Angeles), City Terrace (Los Angeles), Glassell Park (Los Angeles), Beverly Grove (Los Angeles), Florence (Los Angeles), Ladera Heights, Vermont Vista (Los Angeles), Beachwood Canyon (Los Angeles), Nadeau (Firestone Park), Omaha Heights (Los Angeles), Walnut Park, Reynier Village (Los Angeles), Hollywood Hills (Los Angeles), Firestone Park (Firestone Park), Morningside Park (Inglewood), Belvedere (Los Angeles), Beverlywood (Los Angeles), Baird Park (Los Angeles), El Sereno (Los Angeles), Monterey Hills (Los Angeles), Castle Heights (Los Angeles), Downtown Culver City (Culver City), Gramercy Park (Los Angeles), Adams Square (Glendale), Newton Park (Los Angeles), Cal State LA (Los Angeles), Highland Park (Los Angeles), Maravilla (Los Angeles), Cheviot Hills (Los Angeles), Belvedere Gardens (Compton), Winter Gardens (Commerce), Bandini (Commerce), Broadway-Manchester (Los Angeles), West Glendale (Los Angeles), Westmont (Los Angeles), Palms (Los Angeles), Green Meadows (Los Angeles), Laurel Canyon (Los Angeles), Eastmont (Compton), Watts (Los Angeles), Fox Hills (Culver City), The Flats (Beverly Hills), Walker (Maywood), Sunkist Park (Culver City).

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