Cat-Back Exhaust System - ATAK Pontiac UMI’s Stage 3 kit has

UMI’s Stage 3 kit has been the choice for GM A-body owners looking to achieve great street manners combined with Pro-Touring handling capability

250-inch sway bar for improved cornering stability

Red Line C+ ATF provides the exact frictional characteristics required in the MS7176 specification

The design increases the camber adjustability and adds caster adjustability that isnt available from the factory

3/8" laser cut flanges

Cat-Back Exhaust System - ATAK Pontiac UMI’s Stage 3 kit hasEXCEPT Convertible. This 3" diameter True Dual Quad Tip BORLA Cat Back system features a Merge X Pipe for increased performance and improved sound. Muffler contains Polyphonic Harmonizer technology which utilizes patented units that contain pipes of different diameters and lengths to create multiple exhaust notes that harmonize to deliver a clean, rich, full bodied sound. This system features the aggressive ATAK sound with no drone inside the vehicle