Originally Posted by MMC Racing

Stand alone cost - $3000 installed
Extra tuning - $800
The laughs from friends when you only gain 5hp - priceless

A direct comparison to GT-R's is not apples to apples because the G/Z platform is not factory turbo, but look how far the GT-R can be taken on just the Cobb. I doubt on one of these Stage 1-3 kits that a standalone will be any safer or gain any significant power. As is often said with mods, the increased performance is from lightening your wallet.