Do all these upgrades help or hinder a vehicles towing abilities. Had my first test drive of an XR6T BA today and am convinced I want one. BF is too much so I am worried about the performance of the 4 spd. I want the car to perform coming from a 300rwkw Skyline and tow my boat as well. Bit of a compromise. I will be doing exhaust, breathing and tune followed by some form of trans upgrade. Found it a little spungy as first impression.