Quote:
Originally Posted by Kalud
I've see this idea floating around every couple months, always by some n54 dude. Now Cobb is out, and there is already a review, its smooth...
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This is why I specifically referenced the flash tunes. The COBB tune is out, but it's also still in the Beta stage which means A) that the maps aren't officially approved and B) there are still revisions being made.
Valvetronic is the biggest difference between the N54 & N55 motors (turbo configuration aside), so if it was just that simple to overcome why haven't we seen any aftermarket turbo options? There's clearly an audience for it & the turbo has been identified as the limiting factor for power, but to responsibly tune for such an aggressive performance setting (boost curves, timing, fueling, etc) will require a complete tuning profile.