Originally Posted by rangerfan

So ya, I took my 2013 35i M-Sport and had the Dinan State 2 for the N55 engine installed yesterday. I had driven the new car 3,600 miles before the install. The dealer suggested waiting until after break in, and I couldn't get back to have it done any sooner. But I like the idea that I really had a good deal of seat time to give me a good perspective of the oomph provided by the tuning.

I know, why did I do it? Really, there is no answer. The engine is pretty good (minus the lag) without the extra kick. Of course, 55hp and about 100 lb/ft is an impressive upgrade. Really, it came down to nothing more than why not?!

So was it worth it? Well, I'm only 30 miles into the upgraded engine, but I have to say, the difference is absolutely noticeable everywhere. Way faster and more responsive at slow speeds in both D & DS. Even at 70mph coasting on the highway in D--hit the gas, and the torque puts a smile on your face. My previous X was am 04 4.4, and I really enjoyed the V8 in that car. I can tell I'm going to enjoy this new tuned six even more.

Will report back again in another 1,000 miles. But I leave you with the two words my SA said to me when I drove off of the Dinan Authorized dealer lot yesterday--'have fun'. That pretty much sums it all up.