the trd CAI is good but i found the injen one to be a better fit. the TRD CAI i had was dangling and i didn't like this much. there is a bracket you need to mod (which i didnt get when i bought the TRD) u need to cut the top section of it in order to fit it SECURELY in our chassis. the injen one has a mount that i used on the stivo with it lining up perfectly with one of the bolt holes inthe chassis which happened to not be used. :) also the injen CAI was a bit shorter so i didn't have to push the pod all the way up just to clear the front bar and foggy so more air is being sucked in at all areas of the pod instead of just the top section. i instantly got a nice pull all throughout the rev range when i gave it abit after installing it. i do not know if its whether i had the stock box in for a while but i definately can tell it is better than the TRD CAI when i had it. pod will make a difference too. make sure you get the right one. i use 3A racing pod for flow and filtration. they did a pod shootout a couple years back. google it. that muffler one on nengun is just an axle back. the TRD brand discontinued all the bars not long ago. (i know as i tried to get my hands on them). i settled brand new with the next best thing which was cusco. they make great products. made in japan so the quality is there. Thanks for all the info Kenshin X, it looks like you have swayed me more towards the injen CAI :D what part number will be the best fit for mine? I have the face lift model, you say the RD 2075 if I'm correct? Is that a one piece or 2 piece? As for the sways Ive heard that Cusco have a good rep so I'm thinking about getting them too, wherabouts did you get them from? And what's price range? And as for the exhaust I'm still confused about what to get??!!! I don't want something that Is overly loud so I'm thinking varex but they are very expensive I have heard?? Cheers