Long Tube Headers for Models 4.8-6.2 LS Engine Swap Mustang II D3347-B crew-cab Keep the check engine light

Keep the check engine light off with MagnaFlow HM Grade Federal/EPA Compliant Direct-Fit Catalytic Converter 23939

Part Number: 12-08257

7L V8 2016-2021 Toyota Land Cruiser Base 345/5

6L V8 1979 - 1982 GMC K1500 Sierra Grande 350/5

Long Tube Headers for Models 4.8-6.2 LS Engine Swap Mustang II D3347-B crew-cab Keep the check engine lightOverview: Various Models MII LS Long Tube Blck Ctd Long tube headers provide the greatest increases in horsepower and torque across the entire RPM spectrum. The choice of racers worldwide, Doug's long tube headers are designed for the car owner who wants maximum power and the highest quality header on the market. This fitment is tailored for popular aftermarket engine swap kits. Doug's engine swap headers were developed to solve common fitment issues