As stated, looking for an underdrive crank pulley. If you have a full set of light weight accessory pulleys (tensioner, idler, and alternator) would also be interested in paying for those as well.

I have an 09 accord i4 AT. KN SRT and TB spacer. I want my car to be just a little bit more responsive so i was looking in to getting some under drive pulleys from throwdown. I would also kind of like a system in the future and was wondering if im forced to pick between the 2 or if its possible...