63 Exhaust www.mamotorworks.com 4 You've Been ... Asking For It 1986-91 Stinger Exhaust System The Borla 86-91 Stinger Exhaust ... 2.5" diameter tubing, system includes Y-pipe and your choice of dual polished 4" ... round tips or square tips. Bolt-on installation. Specify tip style ... . Instructions included. Square Tips 1992-96 Cat Back Exhaust Get the power ... 1992-96 with this Cat Back Power-Flo Exhaust. The 2.5" Mandrel Bends open up your ... exhaust and reduce back pressure. Your engine ... bolt-on replacement for your stock exhaust. No cutting or welding necessary. ... 1986-96 Dyno tests prove the Magnaflow Exhaust adds more than 16 hp and more than 13 ... -bent tubing and bolts to the factory Y-pipe. Both systems include a matched set of ... polished, rolled edge, stainless steel tips. 86-91 Cat-back Exhaust System with Y- ...