They are NOT universal mufflers.
Offset Inlet, 2.BORLA CrateMuffler Program: The world's first line of performance mufflers specifically designed to optimize the sound & power of crate & custom-built motors. These engine specific mufflers are available in the 3 BORLA Sound Technologies: Touring, S-Type, & ATAK.25 in;California Residents: WARNING Borla CrateMuffler - 400837 Muffler, S-Type CrateMuffler;Oval, Stainless, Natural;2.