What are the opening hours?

Monday 6:30am - 5pm Tuesday 6:30am - 5pm Wednesday 6:30am - 5pm Thursday 6:30am - 5pm

Transmission Specialties, Inc

Home
United States
Aston, PA
Transmission Specialties, Inc

Transmission Specialties is a leading manufacturing company in high performance torque converter and

10/23/2026

If Black Friday was a drag race, we'd be red lighting 🚦 because we're EARLY. Our Early Black Friday sale is live: 15% off EVERYTHING at TSIrace.com.

It’s never too early to upgrade your transmission, and this is the time to do it. That includes our complete 4L80E and Powerglide transmission packages, built and ready for 4-digit horsepower.

Don’t wait for the crowd. Lock in your build now. Shop the sale: https://www.tsirace.com/

10/23/2026

Had Grimur and his great friends swing by from Iceland this week to spec out some converters. Super happy to have you make the trip to see us in NC!

10/02/2026

https://www.facebook.com/share/p/1FHQWSvvZ6/?mibextid=wwXIfr

09/07/2026

Happy Labor Day, racers and car lovers!

Don’t forget to stop by tsirace.com for our Labor Day sale where you can get 10% off all TSI parts, converters, and transmissions.

07/05/2026

The 4L80E your momma warned you about. 😈

Our Stage 3 4L80E Transmission Kit is built to handle 1,000 horsepower without breaking a sweat. No compromises. No shortcuts. Just proven performance for racers who demand more from every pass.

🔥 In stock and ready to ship.
🇺🇸 Save 10% OFF this 4th of July weekend.

Because the only thing better than the baddest automatic transmission you can buy... is getting it on sale.

Only at tsirace.com.

07/04/2026

🇺🇸 The fireworks aren't the only thing bringing the heat this 4th of July.

For a limited time, get 10% OFF all TSI products, including our best-selling Stage 2 and Stage 3 4L80E transmissions.

That means you can save more than $350 on one of the toughest 4L80E packages on the market. If you've been waiting to pull the trigger, don't miss this sales event.

Shop the sale now at tsirace.com.

07/03/2026

Help your ride get off the line quicker and down the track faster with our transmission and torque converter kits.

4L80E, Powerglide, Turbo 400. You name it, we can build it to meet your performance demands. Don't forget about getting the converter upgrade that is just as important to your timeslip as the trans going in it.

Your one stop shop to making your ride faster and shifting smoother, 10% off during our 4th of July sale only at tsirace.com 🏁

07/02/2026

Build your next TH400 the right way. 💪

Our SFI-certified TH400 transmission case is engineered to eliminate the weak points of a stock case while providing the strength and durability serious race cars demand.

✔️ Cast from high-strength 356-T6 aluminum
✔️ Two-piece case construction
✔️ Eliminates common stock case failure points
✔️ SFI-certified and track ready

🇺🇸 Save 10% during our 4th of July Sale, only at tsirace.com

07/01/2026

Trusted by engine builders. Proven by racers. 💪

From our complete 1,200HP-rated Powerglide transmission kits to billet gear sets for Turbo 350/400 builds, every component is engineered to handle serious horsepower and deliver race-winning reliability.

🇺🇸 Celebrate the 4th of July with 10% OFF all parts and transmission kits for a limited time.

Upgrade your drivetrain and save today. only at tsirace.com.

06/26/2026

250 Years 🫡🇺🇸 We're starting the party NOW with our July 4th Sale💥
🔴 10% off all TSI parts
⚪ No code needed
🔵 Live Now - Shop at https://www.tsirace.com/

Address

368 Turner Industrial Way
Aston, PA
19014

Opening Hours

Monday	6:30am - 5pm
Tuesday	6:30am - 5pm
Wednesday	6:30am - 5pm
Thursday	6:30am - 5pm

Website

http://tsirace.com/

Alerts

Be the first to know and let us send you an email when Transmission Specialties, Inc posts news and promotions. Your email address will not be used for any other purpose, and you can unsubscribe at any time.