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.

We are always happy to help our fellow Supra owners. We just fixed this telltale for a fellow enthusiasts.
07/24/2026

We are always happy to help our fellow Supra owners. We just fixed this telltale for a fellow enthusiasts.

At Relentless Motorsports TX, we specialize in high-quality automotive electronics repair and restoration. We are curren...
07/23/2026

At Relentless Motorsports TX, we specialize in high-quality automotive electronics repair and restoration. We are currently restoring this 1UZ-FE ECU—just one example of our comprehensive electronic services. Our technicians are highly experienced with a diverse range of manufacturers, including Porsche, Ferrari, Lamborghini, and Toyota. Contact us today to discuss how we can assist with your vehicle's electronics.

Who needs an odometer gear for their G body 911? These gears are built in house in the great state of Texas. Unfortunate...
07/18/2026

Who needs an odometer gear for their G body 911? These gears are built in house in the great state of Texas. Unfortunately with age comes the hard truth, nothing lasts forever! We to combat this issue, we are working on making some reproduction parts to help keep these amazing German cars on the road.

We have this Australian market, SC430 ecu for sale! If you're in the market for an updated ecu that has had the hard shi...
07/17/2026

We have this Australian market, SC430 ecu for sale! If you're in the market for an updated ecu that has had the hard shifting issue resolved nows your time. No down time, just plug this in and go!

IS, LS, and GS guys, are you sick of them pesky transmission codes and that horrendous hard down shifting? Say no more a...
07/16/2026

IS, LS, and GS guys, are you sick of them pesky transmission codes and that horrendous hard down shifting? Say no more as Relentless Motorsports Tx has the only true solution for this. Unlike the competition, we developed the repair and we have perfected it over the past 11 years! This is a two part repair, both hardware and software need to be addressed to properly stop this issue from ever coming back!

Usdm, Lexus sc300 oe new old stock side mirror glass! These will not fit a jdm rhd car! $200 takes these!
07/16/2026

Usdm, Lexus sc300 oe new old stock side mirror glass! These will not fit a jdm rhd car!

$200 takes these!

Well this is a fun little project, this, 911 vdo gauge came in from MC² Automotive. This was our 2 air cooled 911 speedo...
07/15/2026

Well this is a fun little project, this, 911 vdo gauge came in from MC² Automotive. This was our 2 air cooled 911 speedometer repair, we ended up manufacturing the gears for the repair in house and we also rebuilt the internal PCB as well!

One of the down sides to ECU repair is fixing job's done by inexperienced people. This 1kz Hulix Surf ecu came in for re...
07/14/2026

One of the down sides to ECU repair is fixing job's done by inexperienced people. This 1kz Hulix Surf ecu came in for repairs, first thing we noticed was the 220ųf cap installed backwards! Capacitors of this style are polarized and have a negative and positive lead, this particular one was in backwards! This can cause a plethora of issues, shorts, fires and much more..... Don't cheap out on ecu repairs or automotive repairs period! Your car can kill you and or other's if parts are installed incorrectly, suspension, brakes and its complex electronics!!!!!! People please keep this in mind when choosing who does what with your vehicle.....

Good morning! Today we're starting off with an MR2, 3SGTE ECU. Whats your day looking like, this is ours!
07/14/2026

Good morning! Today we're starting off with an MR2, 3SGTE ECU. Whats your day looking like, this is ours!

07/13/2026

2jzgte, equal length, twin scroll manifold. This black manifold is hand made from, SCH40 thick walled stainless steel. This unit utilizes, 2x 38mm tial wast gates.

$1200 takes it!

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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