Ive got the Stillen true cat back and randomtechnoligy cats. Going to put headers and supercharger on it soon. Would like to know what headers and charger make the most HP for the money I would like to retain the cats on the exhuast, is any one making headers that do that?.Any one done this mod yet ?

 

As long as you don't buy long-tube headers (one that replace the headers AND Catatlytic converters)[eg. XERD Headers] then you should be fine with leaving the cats intact. I personally would recommend the Crawford or Nismo headers along with the Random Technology cats. There is a special at PerformanceNissanparts.com for $500 for the cats if you are a my350z.com member. Hope this helps...