PLM Power Driven B-Series Hood Exit Race Header with 4-1 Megaphone B18 B20PLM Private Label Mfg. Power Driven B Series hood exit race header features a 4 1 Merge Collector & Megaphone, to create equal exhaust flow. This header delivers the best peak horsepower gains while utilizing a 2 piece design. This is ideal for all forms of competition; Autocross, Drag racing and road racing. Recommended for 1. 8L 2. 2L engine displacements. Vehicle Application: 1992 2000 Civic EG EK 1993 1997 Honda Del Sol 1994 2001 Acura Integra DC