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Exhaust Exhaust Pipes, Systems and Components

Tomioka

Twin Scroll High Flow Catless Downpipe

$720.00 $660.00 Save $60.00

SKU: TR-ES1005

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In Stock
Ships by Aug 5
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30 Days Return
INSTALL DIFFICULTY
DIY PRO SHOP

Moderate — 2–4 hours

Description

The Tomioka Racing Twin Scroll High Flow Catless Downpipe is constructed from SUS304 stainless steel, featuring a 0.25-inch pipe wall thickness and a 0.5-inch flange thickness for durability and performance. Designed as a direct bolt-on replacement for the 2002-2007 Subaru WRX (EJ20/EJ255 MT) and 2004-2007 Subaru STI (EJ207 MT) models equipped with twin scroll turbo setups, this downpipe is for off-road use only due to its catless design and is not street-legal in emissions-regulated areas. It is specifically for twin scroll turbo use and is not compatible with single scroll setups. Installation is intended to be a straightforward bolt-on process, matching factory connection points. The downpipe includes a downpipe to exhaust gasket and necessary nuts and bolts. Please note that this product has a significant lead time, with expected shipping dates approximately 4 months from the order placement. It is the USDM length and does not fit JDM Subaru Legacy twin scroll turbo models. It is also not compatible with EJ20X/Y engines.

MIA's Description

The Tomioka Racing Twin Scroll High Flow Catless Downpipe is a SUS304 stainless steel downpipe designed for existing twin scroll turbo and manifold setups. It features larger diameter piping with ported flanges for improved exhaust flow over OEM components. The pipe wall thickness is 0.25 inches with a 0.5-inch flange thickness.

Fitment

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Specifications

BrandTomioka
Part NumberTR-ES1005
CategoryExhaust

Buy with Confidence

Built for enthusiasts. Every order is backed by our 30 day return window on eligible items. Unused and uninstalled products may be returned with approved RMA and no restocking fees when received in new condition. Orders placed through the MOTORMIA app with a complete build qualify for our Fitment Guarantee — free return shipping if the part doesn’t fit your exact setup. The guarantee covers fit only; installation must follow manufacturer instructions, and we recommend a qualified shop for parts marked Difficulty 4–5.

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