PLM Subaru WRX & STi EJ EJ25 Equal Length Header

PLM Subaru WRX & STi EJ EJ25 Equal Length Header Guarantee the best value and now the best selling EJ-series header! Equal length 304 stainless steel header Short primaries tubes - allows for quicker turbo spool up Symmetrical tubing design Stainless steel cast merge collector Primary tubes 1.65" Stepped to 2.0" piping at the 4-1 merge collector All mandrel bend tubing Fitment: WRX & STi EJ-Series engines OEM location turbo EJ25 oil pan Installation Note: 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.