Good-Win Racing Mazda Performance Parts
15x8 and 15x9 6UL Wheels now Flow Formed!

Our popular 6UL Wheels, 15x8, 15x9 are now Flow Formed wheels! Flow formed for incredible strength and lightness, a load rating of 500KG with a weight of just 11.4 pounds for 15x8 and 12.4 pounds for the 15x9 size. Clearance for Big Brake Kits! Colors include Nickel, Charcoal, Bronze, Silver, and Tungsten.

Welcome to Good-Win Racing!

Street, Autocross and Track Performance for your Mazda Miata, MX5, MX5ND, Mazda RX8, Mazda RX7, Mazda 3, Mazda 2, Mazda 6 and CX5.

Why Zoom with Mazda parts from Good-Win Racing?

Because we race what we sell, and we share our expertise with you!

When our competition goes home for the weekend, we go racing and driving in our Mazda! Using the Mazda parts we sell, under both street performance and race conditions, gives us a unique experience on what works, and what doesn't.

From shock absorbers, replacement convertible tops, and shift knobs, to exhausts, intakes, springs, and alloy wheels, we can help you select the right combination of Mazda parts.

You can also join our Mazda Forums for more information about specific parts and cars, as well as development of our current project cars. And don't miss our forum wheel gallery to see what those wheels you are considering actually look like on your Mazda before you buy.

Stay tuned for announcement of the Next Tech Day

2951 Garnet Ave, Pacific Beach. Food, Fun, Installs!

Check the forum for more information.

Good-Win Racing Tech Day 1
Local Miata racer Howard K. put on the weight reduction clinic at our first Tech Day.

Can't find a specific part in our online catalog?

Just give our Mazda parts experts a call at 858-775-2810 or drop us an email from the Contact Us page.

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Hey Brian, Recieved my Borla Dual Muffler Sport today from Fedex, and installed it in about 30-45 minutes. An Outstanding product with absolutely no drone throughout the power band, it sounds powerful, not at all like one of the ricey "fart tubes" that can be found elsewhere online. It has perfect like OEM fitment. Great prices, and great products. Product was shipped promptly and arrived as ordered. Would buy again!

-- Jake

I think that Brian Goodwin is the perfect example of what is good about the aftermarket industry. He is one of the few vendors that actually cares about his customers. He is the example that all companies should be trying to emulate when it comes to customer service. Not to mention his ingenuity and desire to improve on what is already a great car. I have never had a "bad" experience with Good-win-racing. Well, except for the constant temptation to SPEND MORE MONEY.

-- Sandor

Your Mazda Product Videos!

If we use your video on the site, we will give you a $20 dollar gift certificate toward your next purchase.

    To Qualify:
  1. Post your video to YouTube.
  2. Include full product name and link to GWR website in video description.
  3. Contact us with the link.

$20 Good-Win
Gift Certificate


See Our New GoPro and DashWare In Action!


Sea of Cones : A Documentary About Autocross