Underground Autosports Inc.

06/12/2026

This 2014 Jeep
came in for Custom Tuning after a fresh engine build.
After getting some mechanical issues sorted out, we put together a Custom tune and a Stage 3
tune.

The result?

The cam chop is ridiculous.
The shifts are harder.
Crisp throttle response.
Improved drivability.

📞 Ready to get the most out of your build? DM us or call today.
(847) 278-1040

05/26/2026

Another one on the rollers at Underground Autosports 🔥
Dialing things in, watching the numbers climb, and making sure this setup runs the way it should.

Nothing beats the sound of a car screaming on the dyno. 💨

performance

05/21/2026

05/21/2026

Not every performance car has to fit someone else’s definition of a “sports car.”

This 2020 Mustang EcoBoost came to us after the owner was laughed at by other shops and told they “don’t work on boosted cars like that.”

Here’s the thing:
If you’re passionate about your build, we take it seriously.

This beautiful
hit the
for custom tuning at 💨

Because performance is performance — no matter what badge, engine, or platform you bring in.

05/10/2026

Underground Autosports is now offering custom tuning for ⬇️
💨 F150 EcoBoost
💨 Mustang EcoBoost
💨 Explorer ST/EcoBoost
☑️ More boost
☑️ Sharper response
☑️ Real drivability
☑️ Real power DM or Call to Schedule Today 847.278.1040

05/08/2026

May Fabrication Special 🔥
10% off all custom fabrication work!
Limited fabrication slots available.

DM or Call us discuss your build.
847.278.1040

04/14/2026

2019 Mustang GT 5.0 on the dyno 💥

✅ Procharger
✅ Deatschwerks fuel system
✅ Kooks long tube headers
✅ Stage 2 Tune

BOOK YOUR SPOT TODAY!!!

04/01/2026

Turn 🆙 the volume 🔊🧨🏎️

03/27/2026

Proof that anything can be fun with