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

Improved Throttle Response and Smoothness

CNC laser cut machined

while that may not sound like a lot

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