Comp Cams CB XS290S-10 Porsche It drops into the OEM

It drops into the OEM opening and fastens to existing attachment points

or 1/2" bolts as needed

Will the heated glass work in deep cold

system automatically pulls it fully closed—ensures proper sealing every time without manual effort

Stainless steel catback that bolts to your factory catalytic converter and flows cleaner than stock

Comp Cams CB XS290S-10 Porsche It drops into the OEMGrind Number: XS290S Lifter Type: Solid Lifter Description: Solid Pro Street Bracket, needs good intake, headers, gear & 3500+ stall Engine Family: Chevrolet 396 454 c. i. 8 CYL. 1965 1996 Cam Family: XTREME Energy" Mechanical Flat Tappet Camshafts Specifications: RPM Range: 2800 to 7200 Valve Timing: 0. 015 Lobe Separation: 110 Intake Centerline: 106 Intake Valve Lash: Hyd. Duration: 290 Duration @ . 050" Lift: 252 Valve Lift: 0. 598 Lobe Lift: 0.