Riser. For: Crusader GM Small Block V8 305-350cu.in (Models CM305, CM350XL, and CM350HT). For: Crusader GM Big Block V8 454cu.in (Models 454XL and 502XL). 6-3/4" High. 10 degree down angle. 4" exhaust outlet. Meets or exceeds manufacturer's recommended specifications. Backed by Sierra's limited lifetime warranty.
- For:
- Crusader GM Small Block V8 305-350cu.in (Models CM305, CM350XL, and CM350HT)
- For:
- Crusader GM Big Block V8 454cu.in (Models 454XL and 502XL)
- 6-3/4" High. 10 degree down angle. 4" exhaust outlet
- Meets or exceeds manufacturer's recommended specifications
- Backed by Sierra's limited lifetime warranty
