When you click on links to various merchants on this site and make a purchase, this can result in this site earning a commission. Affiliate programs and affiliations include, but are not limited to, the eBay Partner Network.
No, they are 335cc @ 3.5bar of fuel pressure which is what the stock fuel pressure is on the VQ35. At the industry standard 3.0 bar fuel pressure they flow 290cc.
If you want to run 400hp through them, you'd better start cranking that fuel pressure up because they're not gonna support 400hp (wheel or crank) at 3.5bar FP.