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2002 - 2006 2.5L QR25DE SRS 4-1 1 pc Header and o2 Spacers Combo! Normally $228+shipping, SALE is ON!
Install spacer as I ship them on last o2 sensor. No worries of the CEL doing header mod, commonly P0420 . OEM Pre-cat is a known engine failure sadly, Header mod is Best Bang for Buck for Safety and Power !
This does not touch the main catalytic converter that is mid car. 2004+ The 2nd o2 is on the midpipe, where 2002-2003 is on the bottom of Manifold/Header. This has BOTH o2 bungs to match your oem o2 sensor layout.
US orders only please, UPS or Fedex carrier service.
Must contact if outside cont. US.
Canada / Hawaii +$35 shipping.
I have sold this product since 2003 w/ o2 spacer trick! Great Proven Header. Feel free to browse my response and online under MarkSpecV on numerous Nissan forums.
If you're a Sentra owner, see my other sale for the XS Full race Header Midpipe and Test pipe combo! I also have option of the matching SRS midpipe / downpipe for your B15 Sentra SE-R SpecV !