The PLM K-Swap 4-1 Merger PLM-MERGE is designed to convert your existing PLM 4-2-1 header into a 4-1 header configuration for optimized power delivery on your K20 or K24 K-Series engine.

This TIG-welded, 4-into-1 merge collector features a 2.5" outlet and is precision-built to work with PLM’s K-Swap headers. Ideal for tuners looking to fine-tune powerband characteristics or simplify exhaust setups, this piece offers an efficient bolt-on solution—but may not fit other header brands.

If you’re unsure whether this part fits your non-PLM header, please contact PLM before ordering.

VEHICLE FITMENT

• Honda/Acura K20 & K24 K-Series engines

• Works with PLM K-Swap headers

• May not fit other brands

KEY FEATURES

• Converts 4-2-1 PLM headers into 4-1 configuration

• 2.5" outlet for smooth exhaust flow

• High-quality TIG-welded construction

• Built specifically for K20/K24 K-Series swap applications

• Designed for race and high-performance street use

Note: Fitment with non-PLM headers is not guaranteed. Contact us before ordering if unsure.