The all new Agency Power stainless steel unequal length header kit is now available for your Subaru. A special designed collector enables perfect flow into the uppipe providing faster turbo spool and increased horsepower. The AP header features polished 304 stainless steel for a show quality finish. The header has CNC machined ½ inch thick flanges. Installing the header will not only gain you about 15 wheel horsepower, it will also change the tone of your Boxer engine to a deeper and more aggressive sound.
Agency Power offers their unequal length header with or without their uppipe. Maximum gains can be found with their performance uppipe.
DOES NOT INCLUDE GASKETS OR HARDWARE
Fitment: 02-14 WRX/ 04-19 STi
02-05 wrx requires 2.5l sti oil pan (on some)
06-07 wrx requires sti oil cooler and sti oil pan
Easy to install on my 02 wrx! Added to the rumble and overall a great product.
item arrived in time and in good condition