Discharge Flange Gasket

The K03 and K04 turbos found on many VW, Audi and other small-displacement turbo cars bolt to the downpipe with a four-bolt discharge flange, and that joint takes the full heat of the exhaust coming off the turbine. A tired gasket there leaks, ticks under boost and can cost you spool. Vibrant's 1444G is a stainless steel replacement shaped for the K03/K04 four-bolt turbine outlet, with 10.89 mm bolt holes, and it matches Vibrant's own 14440 discharge flange for custom downpipe builds.

Specifications

• Part number: Vibrant 1444G
• Fits: K03/K04 4-bolt discharge (turbine outlet) flange
• Matching flange: Vibrant 14440
• Bolt hole size: 10.89 mm (0.43 in.)
• Material: stainless steel
• Warranty: 1-year limited

Installation Tips

Clean both flange faces down to bare metal and check them for warping with a straightedge, since a bent downpipe flange will leak with any gasket. Use a new gasket every time the joint comes apart. Tighten the four nuts evenly in a crisscross pattern, and recheck them after the first few heat cycles once the gasket has settled.

Frequently Asked Questions

Will this fit a 5-bolt K04 outlet?

No. This gasket is for the 4-bolt K03/K04 discharge flange pattern only.

Should I replace it every time?

Once compressed, a metal gasket will not seal as reliably a second time. Replace it whenever the downpipe comes off, and keep a spare on hand if you swap downpipes or test pipes often.

Is this for the turbo inlet or outlet?

It is for the discharge, which is the turbine outlet side that connects to the downpipe. The compressor inlet and outlet use different connections entirely.

Fitment: Universal. Confirm the sizes and thread types listed above against your application before ordering.