ETS Downpipe Gasket – 2008–2015 Mitsubishi Lancer Evolution X CZ4A | 4B11T | 100-10-EXH-019

The ETS downpipe gasket is a purpose-made replacement and installation gasket for the 2008–2015 Mitsubishi Lancer Evolution X (CZ4A, 4B11T) — sealing the critical junction between the turbocharger outlet and the downpipe. Whether you’re installing an ETS downpipe, replacing a failed OEM gasket, or rebuilding the exhaust system on a high-power Evo X build, this gasket ensures a leak-free seal at one of the highest-heat, highest-pressure points in the exhaust system.

What Is the Downpipe Gasket?

The downpipe gasket seals the flange connection between the turbocharger turbine outlet and the downpipe — the first section of exhaust pipe after the turbo. This joint operates under extreme conditions: high exhaust gas temperatures, significant thermal cycling between cold starts and full-boost operation, and the mechanical stress of the turbocharger’s weight and vibration. A failed or missing downpipe gasket results in an exhaust leak at the turbo outlet — causing boost loss, exhaust noise, potential heat damage to surrounding components, and failed emissions testing. Replacing the gasket any time the downpipe is removed is strongly recommended — reusing a compressed or heat-cycled gasket risks an immediate or early leak.

Key Features

• ETS-Specific Fitment: Engineered to seal ETS downpipe flanges on the 2008–2015 Evo X CZ4A — correct flange dimensions and bolt pattern for a proper, leak-free seal with ETS downpipe products. Verify compatibility with non-ETS downpipes before ordering
• High-Temperature Exhaust Application: Designed for the extreme thermal environment of the turbocharger outlet — where exhaust gas temperatures and thermal cycling demands exceed those of any other point in the exhaust system
• Essential for Any Downpipe Install or Removal: Any time the downpipe is removed — for turbo replacement, downpipe upgrade, or exhaust service — the downpipe gasket should be replaced as a matter of course. A new gasket is inexpensive insurance against an exhaust leak that would require repeating the entire downpipe removal procedure to fix
• ETS Quality: Extreme Turbo Systems (ETS) is a leading manufacturer of turbo and exhaust components for the Mitsubishi Evo platform — with extensive experience engineering high-performance exhaust and forced induction components for the 4B11T engine

When You Need This Gasket

• Installing an ETS downpipe on your Evo X
• Replacing a failed or leaking OEM downpipe gasket
• Any downpipe removal for turbo service, replacement, or upgrade
• Full exhaust system rebuild or refresh on a high-power 4B11T build

Fitment

• Mitsubishi Lancer Evolution X CZ4A — 4B11T 2.0L Turbocharged (2008–2015)
• Designed for use with ETS downpipe products — verify compatibility with non-ETS downpipes before ordering

Specifications

• Brand: ETS (Extreme Turbo Systems)
• Part Number: 100-10-EXH-019
• Component: Downpipe Gasket
• Application: Turbocharger Outlet / Downpipe Flange
• Fitment: 2008–2015 Mitsubishi Lancer Evolution X CZ4A (4B11T)

Note: Always replace the downpipe gasket any time the downpipe is removed — do not reuse a compressed or heat-cycled gasket. Torque the downpipe flange bolts to the manufacturer’s specification in a cross pattern to ensure even gasket compression and a leak-free seal. Check for exhaust leaks after first startup following installation.