2011-2015 Duramax 6.6L 5" Polar Exhaust Fuel System Accessories 1998.5-2002 Cummins 5.9L They are plug n play

They are plug n play on trucks that came stock with and without the integrated LED daytime running lights

Tests with the same tune and fuel quantity showed increased power output and a decrease in peak EGT's

(3) 3/4-16 o-ring to -8AN male fittings (feed ports)

Cotton - Cleanable: KF-1061

2011-2015 Duramax 6.6L 5" Polar Exhaust Fuel System Accessories 1998.5-2002 Cummins 5.9L They are plug n play2011 2015 Duramax 6. 6L 5" Polar Exhaust Polar Diesel exhaust kits are designed to conquer the elements, made from T409 Stainless Steel, our kits provide the quality your truck deserves. Our exhaust systems are designed with a hassle free, easy installation in mind! Featuring precise pre bent exhaust hangers, stainless lap joint clamps and precise flanges, you can expect excellent fit & finish. With all of our exhaust systems you can count on reduced