Description

The Booster One More PSI T-shirt is built for gearheads who always chase more power. There’s no such thing as enough boost—and Booster lives by that rule. Whether you’re swapping pulleys or chasing a dyno sheet, this tee shows the world you’re never done turning it up.

Booster doesn’t rest. He’s mid-swap, impact wrench in one hand and pulley in the other. His bold BOOST tattoo sits front and center, reminding everyone that boost isn’t just a number—it’s a lifestyle. This shirt captures that raw obsession with power and performance.

You might run a Whipple, EATON, Magnuson, Edelbrock, Roush, or Harrop—it doesn’t matter. If you live for blower whine and high PSI, this one’s for you. The gritty, vintage-inspired artwork pops with bold lines and distressed textures. It looks right at home in the garage, at the track, or in the streets.

Each shirt is printed on ultra-soft, heavyweight cotton that’s made to last. Whether you’re under the hood or behind the wheel, it keeps you comfortable and looking sharp. It handles grease, sweat, and whatever your build throws at it.

The classic fit runs true to size, so you can throw it on and go. No guesswork—just reliable, daily wear that backs up your passion for power.

Booster represents the mindset: More boost. More power. One more PSI—always.

Available in sizes S–3XL. Classic fit. True to size.   Ships Fed Ex Two Day!

Wear the Booster One More PSI T-shirt and rep your addiction to horsepower. You’re not just building a car—you’re chasing greatness.