The WELD RT-S S77 is a classic tuning fork design modified for modern muscle. 3-Piece forged construction using forged shells and 6061 centers allows for necessary strength with reduced weight for optimal street performance. Designed to fit modern muscle cars, the S77 fits most muscle car applications including Mustangs, Camaros, Corvettes, and Challengers.

• 3-Piece forged aluminum construction
• Polished shell with black machined