PLM Power Driven H-Series Ramhorn 4-1 Header for Honda Prelude & H22 F20B Swaps - PLM-H2B-RH-HEADER-KIT

Key Features & Specs:

• Brand: PLM
• Part Number: PLM-H2B-RH-HEADER-KIT
• Series: Power Driven Ramhorn
• Header Design: Long Tube 4-1
• Engine Compatibility: H22 / F20B VTEC
• Material: 304 Stainless Steel
• Construction: Hand TIG Welded
• Collector Size: True 2.5 Inch Collector
• Collector Type: 4-1 Merge Collector
• Flange Type: CNC Machined Manifold Flanges
• Flange Thickness: .38 Inch
• Tubing: Mandrel Bent, 18 Gauge Stainless Steel
• Design: Two-Piece Slip-Fit with Adjustable Height
• Hardware Included: Yes
• Gasket Included: Yes
• Performance Benefit: Increased High-RPM Horsepower
• Warranty: One Year

Fitment:

• Honda Prelude (H22 Engines)
• Honda H22 / F20B VTEC Engines
• H-Series Swap Applications
• To properly fit Prelude you will have to notch or modify your stock front crossmember, or contact us to get an aftermarket one that will fit with no cutting.

Maximize top-end performance with the PLM Power Driven H-Series Ramhorn 4-1 Header, engineered for H22 and F20B VTEC engines. Designed with a long tube 4-1 merge collector, this header delivers improved exhaust flow and increased horsepower at higher RPMs. Built from high-quality 304 stainless steel with hand TIG welding, CNC-machined flanges, and mandrel-bent tubing, it ensures durability and precision fitment. The two-piece slip-fit design allows for adjustable height during installation, making it ideal for both Prelude applications and H-series swap builds seeking maximum performance gains.