PLM Power Driven B-Series Hood Exit Race Header w/ 4-1 MegaphonePLM Power Driven B Series Hood Exit Race Header w 4 1 Megaphone SKU: PLM HB HOOD HEADER SHIELD Product Description The PLM Power Driven B Series Hood Exit Race Header is built for serious racers looking for maximum peak horsepower and uncompromised exhaust flow. Featuring a true 4 1 merge collector that transitions into a megaphone outlet, this design promotes equal scavenging and strong top end performance. Constructed from 304 stainless steel and