Skip to content

Tomei Expreme SUS Down Pipe Kit For 04-07 WRX STI EJ25 Single Scroll Ver.2

Save 10% Save 10%
Original price $ 690.00
Original price $ 690.00 - Original price $ 690.00
Original price $ 690.00
Current price $ 621.00
$ 621.00 - $ 621.00
Current price $ 621.00

***NOTE: We don't ship this item to CA or any other CARB states, Please DO NOT purchase it if you are in one of those states (Contact us if you are not sure)***

Note: This product is intended for motorsport use and should only be used on a racing circuit or a circuit closed off from public roads. We DO NOT ship this item to California and other carb states.

Application: 2004-07 STI USDM EJ20 / EJ25 Engine Single Scroll Turbo


Material: Full SUS304 (Stock: Steel)
Pipe Diameter 76.3 (Stock: 60.5)
Pipe Thickness: 1.5mm
Flange Thickness: 11.0-10.0
Weight: 4.3kg (STD: 10.3kg)

Kit Contents:

Down Pipe A
Down Pipe B
Turbine Gasket
Muffler Gasket
Clamp Band
Cap Bolt
Flange Bolt
Flange Nut
Hex Nut
Blind Plug
Copper Washer
Disc Spring
Bolt Smooth Paste
Upgraded Thermal Bandage (Titan Exhaust Bandage) 20m x 5cm
Bandage Band

Tomei down pipe dramatically improve exhaust flow and significantly reduce over 53% of weight vs. stock down pipe. Addition to massive torque and power increase and lightness dramatically improves handling.

1. 2 Piece Layout - The newly designed 2 piece Layout promote even weight distribution, minimize dimension changes from heat expansion and complete precise installation.

2. Outlet - Lost-Wax casting requires NO welding thus delivering superior precision and strength.

3. T/C Flange - Significant diameter increase resulting in dramatic exhaust flow improvement.

4. Exit Flange - The flat flange adapts wide range of aftermarket exhaust systems. (excluding stock).

5. Sensor Bung - A/F sensor ready.

We usually ship all orders within 1 day unless there is an issue with the order. In that case, we will contact you to find the best solution.

Question about this product? Let us know!