Tomioka Racing Exhaust Manifold - 2015-2021 Subaru WRX / 2014-2018 Forester XT

Tomioka Racing Exhaust Manifold - 2015-2021 Subaru WRX / 2014-2018 Forester XT

The Tomioka Racing Exhaust Manifold is a stainless steel performance manifold for the FA20DIT WRX -- improved exhaust scavenging, better turbo spool.

Stainless Steel Construction for Improved Flow

The 4-1 collector design and smooth inner surfaces improve exhaust gas flow compared to the factory cast manifold. Constructed from stainless steel with TIG welding and machined bends for smooth flow transitions.

Stable Flange Connection

Lost wax finish provides smooth inner surfaces that reduce turbulence in the exhaust stream. Compatible with stock and most aftermarket turbochargers at the factory location.

Key Features

• Exhaust manifold
• 2 x Exhaust gaskets
• 1 x Turbo gasket
• Hardware Kit

Fitment Notes

• Professional installation required
• Confirm turbocharger flange compatibility before ordering
• Fits 2015-2021 Subaru WRX

Straight From Subispeed

The Tomioka manifold is a meaningful upgrade for builds that want improved flow from the cylinder head to the turbocharger without stepping away from the factory turbo location. Pair with the up-pipe for a complete matched system. Professional installation is required.

What's Included

• Tomioka Racing exhaust manifold
• Turbo gaskets
• All installation hardware

About Tomioka Racing

Tomioka Racing has been engineering performance parts for Subaru platforms since 2007, with a catalog built around bolt-on reliability and real-world performance validation. Their turbocharger range covers everything from mild street upgrades to full competition kits, with each unit developed and tested specifically for the Subaru EJ and FA engine families. Rally Racing proven -- Tomioka Racing turbos have been run at the Pacific Forest Rally and other competition events, validating their performance under sustained high-load conditions.