Hello,

I just recently installed some Z1 HFC's on my 2008 G35x and after the install the car will run fine at WOT but during part throttle around 2500-3000 RPM it starts to hesitate and feel like a misfire ? or something

I have reset the computer using NDS3 but it still does it? no codes not CEL 50 miles later...

Any thoughts?

 

my 08 does this. Many many do. I believe they are more sensitive than later years as my 13 did not. I'm hoping a tune will solve but some say it doesn't. You'll want to get used to it. It wont throw a code either so cant really nail down any issues. Sucks but one of those things.