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.

Our Next Tech Day is Saturday April 1st fooling!

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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Just wanted to thank you guys for the great stuff and great work done on my MX5 club yesterday. I could feel the difference in sound and performance right away! It drives and corners awesome now. Can't wait to tell my friends about you guys. I'll be keeping an eye on your web site for other goodies and events as well. Can't wait to try my new suspension out on a auto cross. Will definitely be trying it on some twisty roads this weekend. Just can't wipe that smile off my face when driving this car. Thanks again guys!

-- Paul Young

I received the Roadstersport II, and I wanted to compliment you guys on an awesome product. The Miata should have these on from the factory. They make a great sound, that is not obnoxious at all. The exhaust also installed seamlessly!!! I will buy all of my Miata stuff from you in the future. Thanks,

-- Nate

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