I weighed the stock crank pulley tonight and here is the comparison:

ASP LW Billet Aluminum Crank Pulley: 1.5lbs (24oz)
Stock S4 Crank Pulley: 4 5/8lbs (74oz)

Weight difference: 3.125lbs (50oz)

Here are some pictures:

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ASP Stage 3-

Current Power Output: 310awhp/320awtq (77*F, Mustang Dyno, 93 Octane)

Current Best Drag Time: 13.050 @ 106 w/ 1.79 60' (91*F, 93 Octane, full weight, Atco Raceway - Atco, NJ)

Current Best FATS Time: 4.72 second (89*F, Full tank of 93 octane, full weight)

ASP 3- M-Box Tune :: Bosch Motorsport 5-bar FPR :: Borg Warner/KKK RSK04 Turbos :: OEM RS4 Inlets w/ ASP Silicone Couplers :: ASP Stainless Tubular Exhaust Manifolds (Ceramic Coated) :: ASP Stainless 3" Downpipes w/200-Cell High-Flow Cats :: ASP Tru-Dual Cat-back Exhaust *Baller Tips* :: ASP Phenolic Intake Spacers :: ASP Street Series Motor Mounts :: ASP Street Series Transmission Mounts :: ASP Street Series Rear Differential Mount :: ASP Drivetrain Stabilizer w/ Energy Suspension Bushing :: ASP Stage 4 Clutch Kit/Stock Resurfaced Flywheel :: ASP Black Anodized Lightweight Crank Pulley :: ASP Black Alcantara Shifter Boot :: Avalon Motorsports Monstrous Oil Cooler Kit :: Evolution Racewerks (Monstrous) Dual SMIC Kit :: Samco Complete Black Silicone Hose Kit :: AWE Vent-Mounted Boost Gauge (New Version) :: AWE Aluminum Sport Pedals :: Greddy FATT Turbo Timer :: APR Bi-Pipe :: Bosch 710N DVs :: H&R Street Coilovers (25") :: Carbotech Bobcat Brake Pads (F&R) :: Goodridge Stainless Brake Lines :: JHM Solid Short Shifter (35%, Stock Height) :: JHM Stiffer Reverse Spring :: JHM Delrin Stabilizer Shaft Bushing :: RS4 Hood Grille :: RS4 Black Alcantara Shifter Knob :: AudiSport Rubber Floor Mats :: Höen Endurance H7 Yellow Fogs :: MotulGEAR 300 Trans & Rear Diff Oil :: Motul RBF600 Brake Fluid :: Ceramic Coated Intake Manifold :: Sportec Airbox Hole Mod :: Hardwired V1

USEFUL INFO
Sportec S4 Airbox Mod : ASP Lightweight Crank Pulley Discussion : Motor Pull and Upgrade Pics Part 1 : Motor Going Back in the Car
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ACNA#: 33892


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