Hey everybody, im new to this site. Just had a few questions because i'm still baffled on what to do to my 99 GSR. I've had it for about a month and have been wanting to put intake. Since i want the J's Racing Intake, i have to swap my intake manifold. Well i was thinking of putting the Blox Intake Manifold but im confused. Some sites say that its a swap and it uses all factory sensors and hoses and stuff so i dont have to buy anything for it... but i came across a DIY and some guy said he had to buy bolts and he had to chip his ecu and all this stuff.... do i really have to chip my ecu for this modification? And if i do swap it, do i have to install the J's Racing Intake right away because of its different shape or can i still use my OEM tubing for a while, while i buy the intake. Thanks for your help guys.