PLM Power Driven K-Series Header Downpipe

Fits: 9th Gen Honda Civic Si (FG4)

PLM Private Label Mfg. Power Driven K-Series Header Downpipe features a large 4.25-inch bell mouth design with a 3-inch outlet. No modifications are needed as it is a direct bolt-on unit to the OEM exhaust cat-back location.

Key Features:

• High-flow, 200 cell, metallic core catalytic converter
• Includes gaskets & hardware
• Made of Stainless steel
• One-year limited warranty
• Includes O2 sensor adapter
• CNC machined manifold flanges
• Flange is .38" thick 18-gauge stainless steel
• Bolts directly to OEM cat-back exhaust
• Large 4.25-inch bell mouth design
• High-grade casting on the bell mouth section
• Precision CNC mandrel bend tubing
• Braided flex pipe section with interlock liner
• One-piece Design 
• Bungs for OEM O2 sensors
• Additional bung for wideband sensor