dorkidori_s13
Member
- :
- 2003 Mazda Protege5
Does anyone know if the Sport20 AWD 4-2-1 headers have any fitment issues on the USDM FSDE? I have the opportunity to pick up a REALLY nice set of MaximWork 4-2-1 headers, but it looks like the area that connects to the secondary cat section is longer than the USDM header in that area. Anyone out there have any experience with JDM FSZE headers?
Also, I currently have an OBX header sitting at work that needs jet coating and Ive been reading that the 4-1 headers give peak HP gains in the higher RPMs... does any know exactly what RPM range the 4-1 headers affect vs 4-2-1 headers?
Also, I currently have an OBX header sitting at work that needs jet coating and Ive been reading that the 4-1 headers give peak HP gains in the higher RPMs... does any know exactly what RPM range the 4-1 headers affect vs 4-2-1 headers?