2023 HM Pro Spec Sigma and Street Spec Alpha, our latest collaboration with Thrash Racing!

Sigma features an aggressive racing look with deep bolster, detachable halo, red carbon back, and red fabric with logo stitching in black/gold.

Alpha returns with its classic styling and snug hold for street and track application. New version comes in red fabric with silver carbon back and logos stitched in silver.

Only 5 of each seat will be produced!

This is a pre-order for the next Thrash seat production. Shipping cost will be due once seats arrive in California. You will receive an invoice for UPS ground from Thrash Racing when your order is ready.

Thank you!