Civic Acura Integra Header B-SERIES 2.5 Collector Stainless Exhaust Manifold 4-1

Circuit Werks latest B-Series 2.5" Collector Headers/ Exhaust Manifolds (JDM Integra Type-R Spec).  Fits all B-Series motor in 94-01 Acura Integra, 99-00 Honda Civic Si DOHC, and Delsol with the DOHC motor except B20 CR-V block unless you have a different oil pan.  *This is a 2.5" Collector, you will need a 2.5" inlet exhaust or a High Flow Cat that accepts this 2.5" Header.   If you have any questions, feel free to contact us.  We are a group of Honda/Acura specialists.