4" V-Band Clamp Assembly (Mild Steel Rings / SS Clamp). The heavy-hitter for custom 4-inch exhaust fabrication. Designed for big-power builds, this kit combines the superior weldability of mild steel flanges with the high-strength clamping force of a corrosion-resistant stainless steel assembly.

Installation Pro-Tips:

• Anti-Seize is Mandatory: Use it on all threads to prevent stainless steel galling (seizing) after heat cycles.
• Tap-to-Seat: Use a rubber mallet to gently tap the clamp perimeter while tightening to ensure a uniform 360-degree seal.
• Alignment First: Ensure your large-bore piping is perfectly aligned before tightening; the clamp is for sealing, not for forcing misaligned pipes together.

NZA Advantage: In-stock in NZ for immediate dispatch. We are a primary supplier to NZ performance workshops. No drop-shipping, no waiting—you get the parts the moment you need them to finish your build.