The PLM K-Swap 4-1 Megaphone Merger PLM-MEGAPHONE-SPRING is a performance-driven solution for turning your PLM K-Series header into a drag-style exhaust system. Featuring a reverse cone megaphone design and a 2.5" inner diameter V-band flange, this merger collector increases exhaust velocity and enhances scavenging for maximum performance on the track.

This component is designed to work with PLM 4-2-1 or 4-1 headers used in K20/K24 K-Swap builds and is ideal for racers looking to optimize exhaust flow with a simple bolt-on conversion.

VEHICLE FITMENT

• Honda/Acura K20 & K24 K-Series engines

• Works with PLM K-Swap 4-2-1 and 4-1 headers

• May not fit headers from other brands

KEY FEATURES

• 2.5" inner diameter outlet

• Reverse cone design for improved exhaust scavenging

• Integrated V-band flange for secure and easy connection

• TIG-welded for strength and reliability

• Converts standard PLM headers into drag-style megaphone setup

• Precision-engineered for performance K-Swap applications

Note: Contact us prior to ordering if you’re using a non-PLM header. Fitment is not guaranteed with other brands.