PSI Triple Valve Spring (16) 1.660" OD & 1.130" Coil Bind ISK1247 Product:340LBS @ 2.070" Seat Pressure, 940LBS @ 1.270" Open Pressure L92 heads are only compatible

L92 heads are only compatible with a 4

Boosted 6673 Turbocharger Core Only

Rpm operating range 1800 - 5800 Duration advertised Inlet 277°

robotic weld seams Single 3-1/2" Center Inlet Single 3-1/2" Center Outlet 4-3/4"H x 10-1/4"W x 14"L 16 Gauge Raw Aluminized Steel Case Reinforced Inlets and Outlets Stainless Steel Perforated Internal Plate Eliminates Internal Rust Aerodynamic Lens Directs Sound Pressure Waves into Acceleration Chamber and Out of Muffler Sound Absorption Chamber eliminates High Frequency Sound Waves for Deep Throaty Powerful Sound Resonance Chamberand Tuning Tube Cancels Unwanted Frequencies and Amplitudes (No annoying tin can sound or drone at cruising speed) Stepped acceleration Chamber Increases Exhaust Gas Velocity and Maximum Flow Three Internal Bulk Heads for Superior Case Durability and Stability

PSI Triple Valve Spring (16) 1.660" OD & 1.130" Coil Bind ISK1247 Product:340LBS @ 2.070" Seat Pressure, 940LBS @ 1.270" Open Pressure L92 heads are only compatiblePSI Triple Valve Spring (16) 1. 660" OD & 1. 130" Coil Bind340LBS @ 2. 070" Seat Pressure, 940LBS @ 1. 270" Open Pressure ISK1247 K1247 You can trust PSI valve springs to out perform all others as they are made from the finest materials, the best CNC equipment and state of the art trade secret processing they also utilise special heat treating and additional "Special Processing" for minimal load loss.