Tri-Y Headers for 68-91 GM Truck 396-502 BBC 1-3/4in Primary D303Y tailgates-and-liftgates all add up to reducing

all add up to reducing the shifter throw by 37% and provide smooth precise shifts over the factory OEM shifter

Allows you to Choose Your Mufflers

our Ditch Mounts are strong

Peterbilt 385 (2002)

Keep the check engine light off with MagnaFlow HM Grade Federal/EPA Compliant Universal Catalytic Converter 99355HM

Tri-Y Headers for 68-91 GM Truck 396-502 BBC 1-3/4in Primary D303Y tailgates-and-liftgates all add up to reducingOverview: 68 91 GM Truck BBC Tri Y Silver Ctd Doug's is the pioneering force behind the popular TRI Y design for cars and trucks. The unique, shortend, paired primary tubes increase mid range torque without sacrificing top end power. TRI Y's are a great choice for daily drivers and heavy duty trucks looking to increase power from idle up to 4500 RPM while maintaining maximum fuel efficiency. Features: 3 8" thick machined flanges to prevent warping CNC