B Series 4-2-1 Tri-Y Header For B16 B18 VTEC Civic Integra Honda Acura Short Shifters especially for high-horsepower engines

especially for high-horsepower engines

Designed to free up exhaust flow for maximum power output

Improved Throttle Response and Smoothness

so its resonance is no

This kit upgrades you to the latest in coil technology from Audi

B Series 4-2-1 Tri-Y Header For B16 B18 VTEC Civic Integra Honda Acura Short Shifters especially for high-horsepower enginesFitment Information 1999 2000 Honda Civic Si (1. 6L VTEC) 1994 1997 Honda Del Sol (1. 6L VTEC) 1990 2001 Acura Integra (1. 8L VTEC) *This header can only be installed on a B series engine with a DOHC VTEC oil pan and requires a 2. 5" adapter* Specs & Features Requires a 2. 5" Adapter flange. Fits B Series DOHC VTEC motors featuring 1 5 8" pipes with 2. 5" collector flange. With the larger pipes and the larger 2. 5" collector, it will immediately add