Yup, here it is, Thunder Works T-shirt! Shirts are black, heavyweight cotton (6.1 ounce) and American-made. Available sizes: Medium, Large, X-Large, 2X, 3X, 4X, & 5X.

Prices: $15.00 for medium up through XL; 2X & 3X are $18.00; 4X & 5X are $20.00. CA sales tax applies on sales within the state.

Or you can bring in your engine and get a shirt free with the rebuild! Sweeeeet.