Exhaust system: Cat back 85-89F TPIThis is the Catalytic Converter BACK.. exhaust structure.. with 2. 5 cat connectored mid pipe coupling to a performance Muffler & twin tail pipes as shown. This is ready to fit, precisely bent specifically for this body & driveline. Deliveyr is additional and this part is special order only.. eta if immediately available 2 3 weeks, inbound by air. Proffessional fitment will be required unless your really handy.!