Gibson Turn Down Slash-Cut Tip - 4in OD/3.5in Inlet/12in Length - Stainless Suspension>Suspension Controllers and has single 4" round

and has single 4" round black chrome on T-304 stainless steel tips on each tail pipe

NOT recommended with these black chrome tips

The AEM 21-640C Performance Cold Air Intake System produces horsepower and torque gains by replacing your vehicle's restrictive factory air filter and air intake housing

Extension pipe 60693 is used to adapt select BORLA® Cat-Back™ systems to trucks with a Crew Cab with Standard Bed (8') 176" Wheelbase

Gibson Turn Down Slash-Cut Tip - 4in OD/3.5in Inlet/12in Length - Stainless Suspension>Suspension Controllers and has single 4" roundThe only part of your Exhaust System that gets noticed is the exhaust tip. Gibson polished Stainless Tip delivers the brilliant 'show look' and will not chip, flake, or rust like chrome. Our exclusive design features a built in clampless connection for easy bolt on installation, with embossed Gibson logo.