BBK 1694 1-3/4" Full Length Long Tube Performance Exhaust Headers And 2-1/2" Y Pipe Assembly for GM LS1 Camaro, Firebird - Chrome Finish BBK is your Number One Aftermarket Performance Exhaust Brand in the USA - American Designed and Built BBK Exhaust is Built with CNC Mandrel Bent 1-3/4" Tubing for 35% Increased Flow Over Stock to Increase Horsepower, Torque and Performance Aircraft Quality Construction, Heavy Gauge Tubing, 3/8" Laser Cut Flanges, Large Bore Patented Designed Collectors and Custom Precision Hand and Robotic Welds for Long Lasting Quality Long Tube, Full Length Direct "Perfect" Fit Replacement Exhaust Includes All New Gaskets and Hardware (Where Applicable) and Offers Improved Performance and Sound Over Restrictive Stock Systems Chrome Finish - Designed to Fit All 1998-2002 GM Ls1 F Body Camaro, Firebird Applications Requires Matching Short Mid H or X Pipe to Complete InstAllation