Overspeed Motorsports

Overspeed Motorsports Your one stop shop for Mazdaspeed performance. Superior quality, in house machining, unmatched preci
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Overspeed Motorsports is a one man operation founded and operated by Jordan Keefover. Jordan embarked on his mechanical journey 10 years ago when started his career in Aviation Maintenance. His passion, drive, and meticulous attention to detail has resulted in the creation of a superior service that is Overspeed Motorsports. Overspeed Motorsports is detracted to providing the highest quality produ

ct at minimal cost to our customers. The quality assurance standards that we adhere to are amongst the most stringent in the business. Overspeed Motorsports specializes in both the mazdaspeed 3 and mazdaspeed 6 platforms. If your looking for mild or wild OSMS can accommodate the build you need to keep your right foot happy.

03/12/2026

I guess it’s been a while… Yes we are still open. No we haven’t updated the website. The best way to get ahold of us is still to call/text or just message us on here for quotes. We can still turnaround any Mazdaspeed 2.3 or 2.0/2.3 Ecoboost in a week or less. I unfriended myself on the side of things so I’m not really on here much.

https://overspeed.onlineWebsite is live. It’s still a work in progress but we will be chipping away at it.
08/06/2024

https://overspeed.online

Website is live. It’s still a work in progress but we will be chipping away at it.

Mazdaspeed, Focus ST, Focus RS, Mitsubishi 4B11, Mitsubishi 4G63 engine builds and performance parts.

02/26/2024
We are proud to bring to the market our 1 piece 6061-T6 rear differential mounts. Our mounts were machined on a 5-axis b...
12/23/2023

We are proud to bring to the market our 1 piece 6061-T6 rear differential mounts. Our mounts were machined on a 5-axis by an ISO 9001+ rated shop. These mounts were rigorously engineered in house to fit like a glove while optimizing the most material possible around the sub assemblies.

FEA analysis was done to compare competitors’ designs that have existed in the past, yielding a 40% reduction in bending stress across the base of the rear mount, and 37% reduction in the more general Von Mises stress (on set load configurations based on the twisting of the driveshaft during launching environment).

All dimensional data was pulled from aerospace certified Mitutoyo CMM while measured in a temperature controlled room. Additionally, Hexagon 3D scan overlay was completed to ensure fitment against the OEM bushings (since their rubber). All new OEM mounts were measured.

It was noticed competitors’ designs were not accurately machined to OEM nominal dimensions, thus we HIGHLY recommend buying these as a set together at our special bundle price of $750.

The mounts come with industry trusted quality Prothane bushings, custom 316 stainless steel sleeves, and all required 10.9 grade zinc plated hardware.

All mounts can be shipped starting the 1st of January. Order yours today. Available only at Overspeed Motorsports.

I wanted to make a post thanking everyone for your continued support. Our transition has failed to meet pretty much ever...
10/28/2021

I wanted to make a post thanking everyone for your continued support. Our transition has failed to meet pretty much every conceivable time line I had set up for the business to be reestablished. Finding the right shop space believe it or not has been the biggest challenge. In the midst of it all we have welcomed our first child Nola Jane Keefover in to this world. With this being said, it’s still going to be a bit before we are back up and running. Once again thank you for your continued support.

💪🏼💪🏼💪🏼
Jordan

For sale: **SOLD**Basic 600hp build. Customer couldn’t come up with the funds. $6150 shipped no core turn in needed back...
04/20/2021

For sale: **SOLD**

Basic 600hp build. Customer couldn’t come up with the funds.

$6150 shipped no core turn in needed back. Ships tomorrow.

02/24/2021

It’s that time again. If your car is running and driving and you still have our core in your garage you are wrong. Send them cores back!!

02/19/2021

Get those cores back in!!

01/15/2021

The 29th of January will be the last day we will be taking orders at the New Orleans location. We are shutting it down to move back to California.... finally. All orders will be fulfilled prior to the planed move at the end of March. Stay tuned for the new shop space. Big things to come.

Well that was a fun project. Shipping out next week!!!
01/15/2021

Well that was a fun project. Shipping out next week!!!

World famous Overspeed Motorsports has a special shipment headed out to Romania 🇷🇴.
12/17/2020

World famous Overspeed Motorsports has a special shipment headed out to Romania 🇷🇴.

Address

1891 Obispo Avenue
Signal Hill, CA
90755

Opening Hours

Monday 8am - 8pm
Tuesday 8am - 8pm
Wednesday 8am - 8pm
Thursday 8am - 8pm
Friday 8am - 8pm

Telephone

+15033136873

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