Exhaust Exhaust Pipes, Systems and Components

Injen

Injen Technology Performance Down-Pipe

$538.16

SKU: I004 SES1204DP

In Stock
In Stock
Ships by Jul 31
Free Shipping over $100
Non-Returnable Item
INSTALL DIFFICULTY
DIY PRO SHOP

Moderate — 2–4 hours

Description

Part #: SES1204DP

Injen Technology has examined the stock down-pipe and found prominent potential on improving the OE design by using mandrel bent stainless steel for optimum flow and corrosion resistance. TIG-welded by hand for race proven durability and endurance and eliminating any possibility of cracking during heat cycles. All of the Injen downpipes are uniquely designed to increase exhaust velocity for improved horsepower and torque. Just like all of our other performance parts, we dyno test our Down Pipes in-house and proudly build them in Pomona, CA.

Features:

  • Direct fit for the
  • 2008-2014 Subaru Impreza WRX Sti H4-2.5L Turbo
  • 2015-2020 Subaru WRX STi H4-2.5L Turbo
  • 2008-2014 Subaru Impreza WRX H4-2.5L Turbo
  • Racing only, high-performance downpipe without catalytic convertor
  • For downpipe with a catalytic convertor, please use Injen's SES1205DP
  • Does not fit 2015+ WRX Models: STI only for 2015+
  • Dyno Proven gains of up to 24 hp and 12 lb-ft. of torque
  • Full 76MM piping made from premium 304 SS Mandrel-Bent Tubing
  • Beautiful CAD Designed 304 stainless steel investment cast turbo bellow
  • Turbo Bellow is a divorced-style design to reduce turbulence and improve performance
  • Turbo Bellow includes the upper O2 sensor bung
  • Hand Crafted and TIG Welded to Perfection for Strength and Durability
  • Designed and Manufactured in Pomona, CA
  • Note: This Part kit is not CARB exempt at this time and is not legal for sale in California or use on vehicles registered with the California Department of Motor Vehicles.

MIA's Description

The Injen SES1204DP is a high-performance, racing-only downpipe without a catalytic converter, made from 76MM 304 stainless steel mandrel-bent tubing, designed for optimal flow and increased horsepower and torque.

Fitment

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Specifications

BrandInjen
Part NumberI004 SES1204DP
Weight25.0 lb

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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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