Granatelli 4.0" (102mm) Mild Steel Interlocking V-Band Clamp & Flange Kit – 308540-1M

GRANATELLI EXHAUST FABRICATION HARDWARE

BIG 4-INCH PIPE DESERVES A CONNECTION THAT ACTUALLY LINES UP.

The Granatelli 308540-1M 4.0" (102mm) V-Band Clamp & Flange Kit gives fabricators a clean, serviceable connection for large-diameter exhaust and turbo systems.

Its male-to-female interlocking flange design helps center the joint during assembly, while mild steel construction makes the flanges practical to weld into custom exhaust, downpipe and turbo fabrication projects.

Why Use an Interlocking V-Band?

Unlike two completely flat mating surfaces, the male-to-female interlocking V-band flanges help locate and center the joint as the clamp is tightened. That makes this 4-inch V-band kit a strong choice for removable exhaust sections, turbo downpipes and other fabricated systems where repeatable alignment matters.

MATERIAL CHOICE

Why Mild Steel?

Mild steel is easy to weld with common fabrication equipment and works especially well when connecting mild-steel exhaust tubing, headers, turbo piping and custom downpipes. It is a practical choice for street, race and custom fabrication projects.

Best For

✓ 4-inch exhaust systems   •   ✓ Turbo downpipes   •   ✓ Custom exhaust fabrication   •   ✓ Race-car exhaust systems   •   ✓ Removable exhaust sections   •   ✓ Large-diameter turbo plumbing

COMPLETE FABRICATION KIT

What's Included

1 V-Band Clamp

1 Male Flange

1 Female Flange

Product Specifications

Part Number	308540-1M
Product Type	V-Band Clamp & Flange Kit
Pipe Diameter	4.0" (102mm)
Flange Material	Mild Steel
Flange Style	Male-to-Female Interlocking
Clamp Style	V-Band / T-Bolt Quick Release
Clamp Material	Steel
Fitment	Universal Fabrication Application
Quantity	Sold as Complete Kit
UPC	802735037685

FABRICATION NOTE: Match the V-band flange size to the tubing being used and verify material compatibility before welding. Proper flange alignment during fabrication helps prevent stress, exhaust leaks and difficult reassembly.