B Series 4-1 Ramhorn Megaphone Header Vband 3” 3 Inch B16 B18 B20

*** IMPORTANT NOTE: Order processing can take up to 1-2 business days. Shipping timeframes start after the order processing has been completed. ***
- Designed for modified engines with stage 2+ cams, head work, 11:0:1 or higher compression, E85, and / or nitrous.
- Includes weld-on 3” Vband set to be welded onto header.
- Made of 304 stainless steel.
- Power steering compatible, but NOT AC compatible.
- 4-1 design with megaphone to dramatically increase power & torque output.
- All hardware, gaskets, and weld-on 3” Vband included.
* Requires use of half-size radiator! Full size radiators will NOT fit with header.