Borla 18-20 Dodge Durango SRT 6.2L V8 2.75in S-Type SS Catback ExhaustBorla 18 20 Dodge Durango SRT 6. 2L V8 2. 75in S Type SS Catback Exhaust The search for the perfect exhaust system for the Dodge Durango SRT is over. BORLA(r) gives you their take on how the Durango SRT should sound. These Cat Back(tm) systems are developed with performance and sound in mind on the 392 HEMI engine. The S Type sound level delivers the distinct BORLA(r) rumble and gives the Durango SRT the classic muscle sound without the drone. System