H2S Diesel Performance & SXS LLC

H2S Diesel Performance & SXS LLC fail and fail again until you succeed!

We don't only just do diesel engine work, we also are competent in a/c, electrical, drivetrain, and so on. We have the t...
06/03/2026

We don't only just do diesel engine work, we also are competent in a/c, electrical, drivetrain, and so on. We have the technology, resources, and knowledge to get your truck back on the road performing as you need it to. We not only diagnose and repair the right way the first time, we also stand behind the products we sell and install on your vehicles backed by the manufacturers warranty. Give us a call or visit our website for more information. Thanks, and have a blessed day!!

📞 3619356269
🌐 h2sperformance.com

GREAT NEWS!!! We are up and running on the website for H2S Diesel swag. Go check it out guys and gals. We have an except...
05/12/2026

GREAT NEWS!!! We are up and running on the website for H2S Diesel swag. Go check it out guys and gals. We have an exceptional appreciation for our customers, friends, family, and our community for getting us where we are today. We look forward to serving you all with the utmost quality and respect that our team can give, and look forward to positive growth! Go check it out h2sperformance.com

04/19/2026

Keep it loud!!

We're proud to partner with Hot Shot's Secret and bring on some of the products they provide. If yall are looking for so...
03/23/2026

We're proud to partner with Hot Shot's Secret and bring on some of the products they provide. If yall are looking for some awesome products give us call and we'll be happy to help you!

Got a few things going on this week! Oil cooler on a 6.4L, engine on a 6.7L, and a fuse box harness on another. And many...
01/21/2026

Got a few things going on this week! Oil cooler on a 6.4L, engine on a 6.7L, and a fuse box harness on another. And many more outside! Just wanna thank all of customers for the support and we take pride in delivering quality work for you guys!

12/24/2025

We greatly appreciate all our customers who have helped us get to where we are today. We look forward to a more productive year. Merry Christmas and happy new year to everyone!

L5P engine going in and 96 12v getting some performance goodies to finish the year off.
12/24/2025

L5P engine going in and 96 12v getting some performance goodies to finish the year off.

That's nuts!
09/12/2025

That's nuts!

Ryan Milliken knows his stuff. I have some of his files on my personal 03 cummins and they're awesome 👌 85% industrial i...
07/23/2025

Ryan Milliken knows his stuff. I have some of his files on my personal 03 cummins and they're awesome 👌

85% industrial injection cp3
Stock injector
Industrial injection super phatshaft 64 on 2nd gen manifold
Completely Stock engine no studs, valve train work nothing. 437k miles
And it's right at 550hp at the wheels with hardway performance tuning

6.7 powerstroke getting resealed along with a new turbo. This one a dirty filthy one. Gonna get her all cleaned up and b...
06/24/2025

6.7 powerstroke getting resealed along with a new turbo. This one a dirty filthy one. Gonna get her all cleaned up and back at it!

Address

5719 Woelke Road
Seguin, TX
78155

Opening Hours

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

Telephone

+13619356269

Website

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