pre cat failure
If it was me i would replace the pre cat with a header. Ihave the 2004 spec v and it had both the pre cat issue and a butterfly screw that came out in the intake. Its better to be safe then sorry. I didn't even hit 100,000 miles and had to replace the motor, i got an used motor from a 2006 and i put a header on it.I also just purchased a 2006 spec v today and was just checkin out the info on the car. It drives great and I also have 40k miles on mine. All this talk of recalls and blow engines is pretty scarey. Do I need to install an aftermarket header??? Is there anything else I need to know as a first time nissan owner?