REDLINE9 · PRINTED IN THE USA

Financially Irresponsible. Mechanically Optimistic.

Loud shirts for people who'd rather be under the hood.

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Best Sellers

Car Guy Definition T-Shirt

Car Guy Definition T-Shirt

$29.99

Car Guy Definition T-Shirt

$29.99
Need Money For Corvette T-Shirt

Need Money For Corvette T-Shirt

$29.99

Need Money For Corvette T-Shirt

$29.99
Yes Officer I Saw The Speed Limit T-Shirt

Yes Officer I Saw The Speed Limit T-Shirt

$29.99

Yes Officer I Saw The Speed Limit T-Shirt

$29.99
Sorry Officer T-Shirt

Sorry Officer T-Shirt

$29.99

Sorry Officer T-Shirt

$29.99
I Like Cars More Than People T-Shirt

I Like Cars More Than People T-Shirt

$29.99

I Like Cars More Than People T-Shirt

$29.99
I Don't Have An Attitude Problem T-Shirt

I Don't Have An Attitude Problem T-Shirt

$29.99

I Don't Have An Attitude Problem T-Shirt

$29.99
I Have A Car Problem T-Shirt

I Have A Car Problem T-Shirt

$29.99

I Have A Car Problem T-Shirt

$29.99
Just A Little Boost T-Shirt

Just A Little Boost T-Shirt

$29.99

Just A Little Boost T-Shirt

$29.99
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Fresh Off The Press

The Radio Is Optional T-Shirt

The Radio Is Optional T-Shirt

$29.99

The Radio Is Optional T-Shirt

$29.99
My Financial Problems Have Great Fitment T-Shirt

My Financial Problems Have Great Fitment T-Shirt

$29.99

My Financial Problems Have Great Fitment T-Shirt

$29.99
It Runs Just Not Today T-Shirt

It Runs Just Not Today T-Shirt

$29.99

It Runs Just Not Today T-Shirt

$29.99
Factory Paint Aftermarket Attitude T-Shirt

Factory Paint Aftermarket Attitude T-Shirt

$29.99

Factory Paint Aftermarket Attitude T-Shirt

$29.99
Cyan Wagon T-Shirt

Cyan Wagon T-Shirt

$29.99

Cyan Wagon T-Shirt

$29.99
Spread The Risk Buy Another Car T-Shirt

Spread The Risk Buy Another Car T-Shirt

$29.99

Spread The Risk Buy Another Car T-Shirt

$29.99
My Search History Cars Parts More Cars T-Shirt

My Search History Cars Parts More Cars T-Shirt

$29.99

My Search History Cars Parts More Cars T-Shirt

$29.99
My Other Interests Are Also Cars T-Shirt

My Other Interests Are Also Cars T-Shirt

$29.99

My Other Interests Are Also Cars T-Shirt

$29.99
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Who we are

Small crew. Loud shirts.

Redline9 is a small, independent shop making shirts for the ones who'd rather be in the garage. Boost jokes, broke car guy pain, project cars that are never quite done. No corporate red tape, just shirts that say what every car guy is already thinking.

Shop the Garage
  • Soft, broken-in tees Printed on the Gildan Softstyle 64000: 4.5 oz ring-spun cotton with a modern unisex fit.
  • Printed to order in the USA Every shirt is made when you order it, by print partners in Florida and Texas.
  • Backed by the crew 30-day guarantee and free size exchanges. If it's not right, we fix it.

FAQ's

Where are you located?

We are a US-based company. We print our t-shirts right here in the USA, like all US companies should, with printers in both Florida and Texas.

Do you ship internationally?

Not yet — we're US-only for now. 🚫🌍 International shipping means customs, duties, and a whole lot of red tape we're not messing with while we're still a small crew building this thing. We're heads-down growing the shop, so international might be on the table down the road. Stay tuned and keep it in the garage. 🔧🇺🇸

Will I get a tracking number for my order?

Yes! Once your order ships, you'll receive a tracking email with a special number so you can follow your package's journey—right to your doorstep.

What materials are your products made of?

Every tee is printed on the Gildan Softstyle 64000 — a lightweight 4.5 oz ring-spun cotton shirt with a soft, broken-in feel and a modern unisex fit. Solid colors are 100% cotton; heather colors are a cotton-poly blend. Built to be worn to the meet, under the car, and everywhere in between. 🔧 Exact fabric by color is listed on each product page.

What if it doesn't fit?

No stress. Every order is covered by our 30-day guarantee, and size exchanges are free. If it doesn't fit or shows up damaged, reach out and we'll make it right. Full details are in our refund policy.