Enhanced Stall - Street/Towing applications; Modified stator enhances torque multiplying effect; Lower rpm response than the stock converter; Three high performance clutch surfaces; More efficient operation; Less heat and better fuel economy.; Stamp-forged steel front cover; Furnace-brazed pump/turbine fins; Improvements made to increase cooling and lubrication of the clutch plates; High Yield Strength forged machined piston; HD Damper assembly absorbs close to twice the stock capacity shock load; UPS shipping label included to return back core for free (USA only)