Private Label Mfg. B Series Tri-Y Big Tube Header B18 B20

The PLM Private Label Mfg. B-Series Tri-Y Big Tube Header is the best-selling B-Series header on the market, trusted for over 15 years. Designed with a true step-up exhaust system, this long-tube header delivers significant low- to mid-range power gains, making it ideal for performance enthusiasts. Featuring a two-piece slip-fit design, it ensures a seamless fit for maximum horsepower. For the best value and proven performance, buy the original PLM Big Tube header and unleash big power.
Features
Big Tube = Big Power.
For Honda B-Series Engines B18 & B20
Stainless steel construction
One year warranty
Tri-Y collectors
Professionally hand TIG welded & assembled
Flange is 3/8" thick, 16-18 gauge piping

Works with A/C when you use slim fans and re-route A/C lines.
This header is not compatible with A/C in stock factory location setup. That said, we have seen setups with slim fans and re-route A/C lines and the header can work with A/C with the slim fans and a/c line modification.
We recommend this header for B18 or B20 engines.