Top Rated Smog Test Shops Serving Forest Knolls, CA

If you really care about choosing a quality smog test shop, we’re here for you. Here’s your access to the best smog test shops serving Forest Knolls including 94933. These smog test experts provide smog checks and air pollution control, and they also work on inspection and maintenance (i/m) program, smog inspection station and exhaust emissions. For 22 years we’ve conducted the most accurate ratings and deepest research of local shops, so you’ll be confident in choosing.

Last Updated May 15, 2026
8,530 people sourced companies in Auto Smog
1,449 Verified Auto Smog Customers Surveyed

1,449

8,530

1 of 1

MSI Automotive

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MSI Automotive (also known to many customers as Marin Sports & Imports, Inc.) provides a wide range of maintenance and repair services for Japanese, A...

Main Services

Auto Repair

Additional Services

Brakes, Smog Certification, Maintenance, Repair, Domestic, Foreign

Coverage Areas

Marin County

Family Owned

Special Discount

Same-Day Service

Coupon on Website

Diamond Certified Video Profile

Auto Repair - MSI Automotive - Marin County

Diamond Certified Company Report

MSI Automotive’s staff works on all types of vehicles.

Expert Contributions

693
Rating Surveys

6
Photos
& Videos

5
Researched Articles

Rated Highest in Quality and Helpful Expertise PERFORMANCE GUARANTEED

Quick Connect
(415) 690-7955

123 Jordan Street, San Rafael, CA 94901

Hours CLOSED NOW

License:

192161

Learn how to choose a Auto Smog and more…

Diamond Certified Smog Test Shops Serve These Forest Knolls ZIP Codes

94933

Diamond Certified Smog Test Shops In Forest Knolls

Diamond Certified smog test shops serving Forest Knolls are rated an average of 4.7 out of 5 stars based on 1618 reviews of 16 rated smog test shops.
Diamond Certified smog test shops in Forest Knolls Avg. Star Rating.

We make you an expert at choosing a high-quality smog test shop in the Forest Knolls area.

For those who love quality local smog test shops.

Within our Diamond Certified Resource:

You choose from only top rated Diamond Certified smog test shops that serve our Forest Knolls area.
You see each shop’s deeply researched report from our research.
You get guidance throughout every phase of hiring a local smog test shop with our Diamond Certified Resource Car Repairs and Maintenance Guide.
You get expert guidance from top rated smog test shops who are Expert Contributors.
You’re backed by our Performance Guarantee.

You’ll love and refer your friends and family to your new Forest Knolls area Diamond Certified smog test shop. They provide expert services, including inspection and maintenance (I/M) program, emission limits, emission testing equipment, compliance certificates, OBD-II (on-board diagnostics) systems, and more.

To qualify for Diamond Certified, each shop must score Highest in Quality and Helpful Expertise (a 90+ on a 100 scale) and pass all our credential-based ratings. Diamond Certified smog test shops that serve Forest Knolls residents include All Autos, Inc., MSI Automotive, and Collie Autoworks.

Every Diamond Certified smog test shop that serves residents in 94933 performs various specialties, including catalytic converters, tailpipe emissions, emission control devices, smog check requirements, and pollution control measures.

How to Choose a Quality Forest Knolls Smog Test Shop for Your Family

Click the name of the shop to get to their Diamond Certified Company Report page.
Watch their Diamond Certified Video Profile and other videos that we’ve created for you.
Read their verbatim customer survey responses and our researched articles.
Get helpful smog tips if they are a Diamond Certified Expert Contributor.
Call or email them to schedule an appointment.

Become a Diamond Certified Preferred Member and Join Your Forest Knolls Neighbors

If you love quality local shops, this is for you. Become a Diamond Certified Preferred Member (always free) and get a double performance guarantee, extra guides and tips, our annual Diamond Certified Directory, and more.

Your Diamond Certified Resource. We make you an expert at choosing.

We make you an expert at choosing local companies by giving you the most accurate ratings, deeply researched company reports and Diamond Certified Guide of all Resource Guides, which cover 70+ industries in the Auto, Home, Health and Personal service categories. Each guide contains 16 key articles that are separated into “Before, During and After the Job” tabs. These are written to guide you through each phase of hiring, starting, managing and ending a job in that specific type of service.

Diamond Certified Resource Compared to Crowd-Sourced Review Sites

Diamond Certified Resource’s ratings of local companies are based on surveys of only verified real customers, so they are the most accurate. This beats crowd-sourced review sites like Yelp, Angi or even Google that are plagued with fake, manipulated, cherry-picked and non-customer reviews, which produce inaccurate and often inflated rating scores.

Diamond Certified Resource’s deeply researched reports of top rated Diamond Certified companies include everything you need to see to be very confident in choosing a top rated local company. Each company report includes detailed quality ratings and scoring, verbatim customer survey responses, a profile video, a company story video, a capabilities table, a photo gallery, researched articles, unique expert contributions from the company’s owner, and more. This beats crowd-sourced review sites that solicit companies to “claim their business listing” and add any type of info to their profiles. This sounds good, but it has led to company profiles that are littered with false claims and incomplete info.

Forest Knolls was founded in 1959, and today, your 3,726 neighbors enjoy festivals, arcades, flower arranging, beach volleyball and bonfire gatherings. Forest Knollsians use Diamond Certified smog test shops for smog tests, compliance certificates, emission testing equipment, exhaust emissions, vehicle emissions standards, and more.

Frequently Asked Questions for Auto Smog in Forest Knolls, CA

Q: What are customers of Diamond Certified smog test shops saying about shops in Forest Knolls, CA?

A: Verified MSI Automotive Customer, 1 of 693
"I believe they are trustworthy and really knowledgeable. They always do a good job. I like the people there. I like Marty. She's at the front desk. They're really personable, and Curtis is really personable. They're not corporate, they're a local business. They're good people, and they're good at what they do. They're kind of perfect." - Barbara S.
All Survey Responses for MSI Automotive

Q: What are some of the most popular brands that Diamond Certified smog test shops use when working with Forest Knolls residents?

A: Diamond Certified smog test shops use top-quality brands like Bully Dog, Banks Power, K&N Engineering, Remus and Volant.

Q: What types of diesel smog do smog test shops offer?

A: Smog repair shops typically offer a variety of services to help vehicles pass smog tests. These can include fixing, replacing, or adjusting parts in the exhaust system, engine, ignition, air intake, and emissions control systems. They may also offer services such as fuel system cleaning, spark plug replacement, oxygen sensor replacement, and catalyst replacement. In some cases, they may even offer engine tuning or a complete engine overhaul.

Q: Can Diamond Certified smog test shops work with MagnaFlow products and similar items so I can get smog checks in Forest Knolls?

A: Yes, Diamond Certified smog test shops in Forest Knolls can work with MagnaFlow products and similar items to provide smog checks.

Q: What did people search for when they wanted to find the best quality smog test shops in Forest Knolls?

A: Diesel Smog
Air Pollution Control
Smog Repairs
Diesel Smog
Air Pollution Control

Posted by Lauren Bongard

Choosing a different auto repair shop isn’t about being disloyal—it’s about deciding what’s right for you and your vehicle. When communication slips, problems repeat and trust fade

Top Tips From Diamond Certified Auto Repair Experts

Posted by Lauren Bongard

From protecting your car’s finish and handling the aftermath of a collision to maintaining essential components like brakes and tires, these insights from Diamond Certified Expert