PPE Raw 304 Stainless Steel Coolant Bypass Tube 01-05 GMC Chevrolet 6.6L Duramax 2004-2007 The kit becomes the "PRO

The kit becomes the "PRO - X" version due to our rear Bolt-in triangulated upper control arms

Mild sound increase with aggressive tone under throttle

CNC machined 6061 billet aluminum construction with satin anodized finish

Includes replacement silicone boots and T-bolt clamps

Couplers: Premium Silicone

PPE Raw 304 Stainless Steel Coolant Bypass Tube 01-05 GMC Chevrolet 6.6L Duramax 2004-2007 The kit becomes the "PROThe OEM mild steel tube is prone to rust, which can lead to coolant system contamination and eventual leaks. Over time, factory O rings also tend to harden and lose compression, increasing the risk of failure. PPEs upgraded bypass tube is specifically designed to work with the factory water pump and is crafted from high grade 304 stainless to prevent corrosion and ensure reliable, long term performance Features: 304 Stainless steel CNC machined tube