Relentless Motorsports Tx

Relentless Motorsports Tx Built by automotive enthusiasts, not a faceless electronics shop.
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Relentless Motorsports TX is a privately owned automotive electronics remanufacturing company with 20+ years in the automotive industry, serving clients worldwide.

This is part of fixing an ecu, as you can see it takes more than caps!
09/06/2026

This is part of fixing an ecu, as you can see it takes more than caps!

09/04/2026

Second deal of the day.

Deal of the week, 22R-T ecu, $400 takes it. This ecu has been professionally remanufactured and comes with our, 2 year w...
09/04/2026

Deal of the week, 22R-T ecu, $400 takes it. This ecu has been professionally remanufactured and comes with our, 2 year warranty.

Sometimes the issue, doesn't always show, visually. It's thing's like this, that make building ecu's a challenge sometim...
09/02/2026

Sometimes the issue, doesn't always show, visually. It's thing's like this, that make building ecu's a challenge sometimes.

09/02/2026

Whats in the shop today?

This is for the one's who get an ecu back and argue that we don't fix them or test them! We are not the, basement dwelle...
08/31/2026

This is for the one's who get an ecu back and argue that we don't fix them or test them! We are not the, basement dweller who lives on forums, we are not the, weekend "hobbyists". We are a group of, mechatronics engineers and master automotive techs! This is what separates us from the other's.

Please know, most of these cars are, 30+ years old! Most have been passed on from several owners and need lots of, maintenance. Our ecu's will not fix everything!

We often get asked if we still fix, MK4 Supra odometers! Well the answer is, YES! We just did this one for a local, Supr...
08/31/2026

We often get asked if we still fix, MK4 Supra odometers! Well the answer is, YES! We just did this one for a local, Supra owner!

Well as they say, the proof is in the pudding!
08/30/2026

Well as they say, the proof is in the pudding!

Porsche owners, we’re now offering in person coding and programming at Relentless Motorsports TX.Whether you’re looking ...
08/29/2026

Porsche owners, we’re now offering in person coding and programming at Relentless Motorsports TX.

Whether you’re looking to enable factory features, change lighting functions, adjust comfort settings, or customize certain vehicle options, we can help with select Porsche models.

This is an in person service, so the vehicle will need to be brought to us.

Send us a message with your year, model, and what you’d like changed, and we’ll let you know what’s available.

Relentless Motorsports TX
Message us to schedule

08/28/2026

Who wants it, make an offer!

Sold☆☆☆☆☆☆☆☆

Address

Dallas, TX

Opening Hours

Monday 9am - 5pm
Tuesday 9am - 5pm
Wednesday 9am - 5pm
Thursday 9am - 5pm
Friday 9am - 5pm

Telephone

+19723750051

Website

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