So I've been planning a build for my 2009 G37x sedan for a while now and it's really come down to narrowing down what parts. I know I am going with a full catback as my first purchase and I was looking at both the FI as well as the ARK but I'm leaning towards the FI.

My second thought was then coils to rid myself of that horrible wheel gap caused by the way Nissan cuts front fenders. As far as coils I've been really looking at Tein SS-P's so I had the option of going EDFC. I can't tell if they make them for the AWD or if the RDW fits (which I doubt) but I've seen G37x's saying they're dropped on SS-P's. If not I was reading that Fortune 500 are really good. Either way I'm pretty sure I need a camber kit and SPC seems to be the way to go with that.

After that I'm kind of at a loss as to where I want to go. I was looking at the Autokits lip+diffuser as well as some kind of trunk lip. My budget here is somewhere in the area of $3-5,000. I'm still running all seasons with the stock journey rims and I was looking at some Axis sport wheels as a start. I live in Chicago so I'd keep my stock rims with the all seasons for winter and get a set of summer tires. Other ideas are Hotchkis sway bars, I was reading into plenum spacers a bit.

Prior to the G37x I owned a 2004 G35x and after switching I noticed two main differences. They gutted the exhaust note and added a ton of body roll. Those are my two main concerns. I know the VQ37 is pretty maxed out in terms of performance unless I plan on spending $$$. I'd like to get around 3-320 wheel as well as correct the exhaust note and wheel gap.

 

1) sway bars
2) test pipe/high flow cat


You will need a few bolt on for 320 whp. I made 300whp with intake, exhaust, hfc, plenum, tune on my X.

Now I've added a few more things and plan on getting retuned soon

 

Yeah after doing some further reading I was seeing that 300-310 is more reasonable. As far as an intake the stock boxes aside from looking dull are pretty well optimized from what I've read. I think I'll hold off on the intake for a while as I haven't done too much research into them and taking off my bumper to change my filters (although it's a rare occurrence) seems like a hassle. I live near Chicago and my G probably won't see that track unless it's a super special occasion. So I may end up foregoing the SS-P's in favor of Tein base and maybe a strut bar? Since this car won't see the track I feel the EDFC is a little overkill for my daily commute. On the flip side the price jump from Base-SSP's isn't huge and if I'm already dropping a good amount of cash I might as well not limit myself and regret it later. I'm also a little confused about the SS-P's and the EDFC. I'm under the impression doesn't move the springs height up and down like bags it more so just affects the spring compression allowing me to become more/less stiff. How is this achieved without changing the height of the ride through the spring compression?

Either way I'm going to wait for the snow to stop so I don't cover my shiny new parts in salt and grime so that gives me an opportunity to save up. My plan is to get most of the work done at the same time since primarily it looks like exhaust and suspension work. With the minor amount of work being done I figured I would not need to be retuned unless I'm mistaken. Is there something similar to a COBB made for G's? If not I was trying to look into some software to display information on the Nav screen in a GTR-esque fashion as currently it sits there displaying my miles left to empty.