Fit NISSAN MAXIMA 3.5L FRONT MANIFOLD/ REAR MANIFOLD AND REAR FLEX PIPE WITH CATALYTIC CONVERTER- 2004-2005-2006 2007 2008. NO SENSOR PORT ON FLEX PIPE . THIS MODEL DOESNT HAVE SENOR PORT: THESE MODEL HAVE 2 STYLE ONE WITH SENSOR ON FLEX, AND ONE WITH-OUT SENSOR PORT ON FLEX PIPE. PLEASE CHECK YOUR MODEL BEFORE ORDER. OEM style and Performance Upgraded Model. WE CARRY BOTH MODEL PLEASE CHECK OTHER LISTING OR EMAIL US. *PREMIUM DIRECT-FIT ? HIGH QUALITY MATERIAL ? OE STYLE & PERFORMANCE** BRAND NEW!!!