I had to take mine off because I'm waiting to get my bearing replaced and it's definitely the most significant mod in my opinion. The NW dual was meh, and I already had a tune. But when you put on that pulley, you can really feel the torque increase.

It was amazing how long I had to search to find a C3 install guide on the forum, but I found it under the documentation collection.

I also had to take off the weather strip for the NW dual install and noticed that the hood is a lot rougher on the ears when closed and there's a bit of give when you pull up on it when closed.

Glad you like it!