The NEUSPEED Hi-Flo TDI Turbo Discharge Pipe removes the damper chamber from the discharge side of the turbocharger. First, a newly machined billet aluminum discharge pipe reduces restriction with a smooth bore transition from turbo outlet to hose size. Secondly, the internal machined groove on the mounting flange uses the factory "O"ring to ensure leak free performance. All restrictions are removed with full diameter flow and with no modifications to the vehicle - this is a bolt-on part. You can expect better response and more horsepower.