[Cyphon]

Just curious to see if anyone tuned their X6 35i? Any noticeable differences?

I've been told Bren Tuning is great in my area but their site listing for the specs confused me.

I read up and the 2011 X6 has the N55 engine installed which is a single turbo with only 300HP, I just wanted to make sure my information is correct before continuing with the tuning. Because there are pricing for TWO X6 35i.

One is X6 35i 3.0 TT (I'm assuming Twin Turbo) which is listed as the N54 engine with 300HP which can go up to 370HP with the tune.

The other is X6 35i 3.0 TURBO which is listed as the N55 engine with "306HP" which can go up to only 346HP with the tune.