The PLM Subaru WRX & STi EJ EJ25 Equal Length Header is engineered to enhance your Subaru’s performance by delivering a smoother exhaust flow, leading to significant power gains and improved throttle response. Crafted from high-quality stainless steel, this header is built to withstand the rigors of high-performance driving while reducing exhaust backpressure. The equal length design ensures optimal exhaust pulse scavenging, contributing to increased horsepower and torque across the RPM range. With a precision fit for EJ-series engines, this header is a must-have for enthusiasts seeking the best value and top performance for their Subaru WRX or STi.

Features

• Equal length 304 stainless steel header
• Short primaries tubes – allows for quicker turbo spool up
• Symmetrical tubing design
• Stainless steel cast merge collector

Specifications

• Primary tubes 1.65″
• Stepped to 2.0″ piping at the 4-1 merge collector
• All mandrel bend tubing

Compatible Vehicles

• WRX & STi EJ-Series engines
• For OEM location turbo
• Uses EJ25 oil pan

Installation Notes

• On 2006-2007 models, the oil cooler assembly is in the way, so you will need the oil filter housing changed to either the 02-05 WRX or 04-16 STI.
• On 2002-2005 WRX, you will need 2.5L or STI oil pan.