Flowmaster 15935 U-Fit Dual Exhaust Kit - 2.25 in. - universal 16-piece pipes only: Automotive. Buy Flowmaster 15935 U-Fit Dual Exhaust Kit - 2.25 in. - universal 16-piece pipes only: Cat-Back Systems - ✓ FREE DELIVERY possible on eligible purchases. Mandrel bent 16ga aluminized tubing 。 Front adaptor pipes/intermediate pipe/H-pipe 。 Over the axle pipe with optional tailpipe exit 。 Slip fit connectors for easy assembly 。 Does not include hardware 。 U-Fit Dual Kit is a .5 inch 16 piece pipe kit (includes pipes only). Manufactured from mandrel bent tubing, 16 gauge aluminized steel. 。 。 。