Funnily enough i had the same problem with mine while running HKS S45 plugs which are a -9 heat range!!
Soon as i changed to Greddy iridium's which Rod fitted for me, all is now fine and dandy!!!
A forum community dedicated to Nissan Skyline GTR owners and enthusiasts. Come join the discussion about performance, mods, troubleshooting, body kits, classifieds, maintenance, and more!
