ZZP 1.4L 2.5-inch Sonic Stainless Catback Exhaust Model:Hatchback RS There is no external interface

There is no external interface required for set up

SMF are able to be resurfaced and can be reused

we needed to develop a solution to the flow limitations of the LNF fuel system

Cross-Drilled Designs - Chamfered

ZZP 1.4L 2.5-inch Sonic Stainless Catback Exhaust Model:Hatchback RS There is no external interfaceFeatures: 100% Stainless Steel 2. 5" Mandrel Bent Piping Chrome Rolled 3. 5" tip Deep Tone This should be called something like cat and back because this "catback" exhaust includes the secondary cat section as well. 100% stainless construction, and is one more quality ZZPerformance manufactured products. Very, very good sound and very minimal drone. This will bolt up to your stock or ZZP mid pipe. For maximum gains and to completely replace your stock