I have a 2012 Raptor and I love it but I'd like to get more out of it! With that in mind, I've got a couple of issue to consider. When idling up from a stopped position my engine will often rev up and then slam into gear. This seems to be getting worse with time. Taking into account this truck is 5 years old and after some research I'm considering my first performance upgrade to be replacing my torque converter with a Billet torque converter rather than throwing a tuner in. I'd like some input on if this is the right decision and if so, what exact converter I need to go for. My second issue is the knock that I get every time I hit a bump. I've read that it's most likely the bottom shock mount bolts on the front swing arms. I replaced the bolts but it still knocks! I don't have deep pockets so I'm trying to put my money where it will be most beneficial first.