What's next?
Thread Starter
Registered User
Joined: Nov 2017
Posts: 7
Likes: 0
did you order the upgraded filter? I think it's not worth it because they require you to remove your front bumper support, ship it to them, pay them $200 to modify it, than ship it back to you for install.
all this just to fit a different shape intake and gain minimal hp.
The Z1 intakes alone seem well worth it until i did some research and found a couple of members on here complaining about contaminants getting past the filters. One member sold the Z1 and got Stillens instead.
Also the Z1 intake filters don't have any type of bracket to hold them in place. Both intake tubes kind of just dangle and hang behind the front grill...
all this just to fit a different shape intake and gain minimal hp.
The Z1 intakes alone seem well worth it until i did some research and found a couple of members on here complaining about contaminants getting past the filters. One member sold the Z1 and got Stillens instead.
Also the Z1 intake filters don't have any type of bracket to hold them in place. Both intake tubes kind of just dangle and hang behind the front grill...
Go short.
Thread Starter
Registered User
Joined: Nov 2017
Posts: 7
Likes: 0
Z1 2 Piece Rotors are 10 lbs lighter and around 460 right now, of course you will need the Akebono Calipers if you don't have an S. New Differential bushings, because yours are probably already leaking. How about some coil overs and upgraded suspension pieces?
If you get the sways, you will want to update the swaybar links.
You can lighten the car by removing things like the spare tire. Get yourself a lithium battery. Unfortunately my old bat was acting a fool and I just got a conventional one.
If you are going to change the gears, get the VSLD if you don't have an S. Some guys use 4.09 I think something around 3.77 or so would be a good compromise.
If you get the sways, you will want to update the swaybar links.
You can lighten the car by removing things like the spare tire. Get yourself a lithium battery. Unfortunately my old bat was acting a fool and I just got a conventional one.
If you are going to change the gears, get the VSLD if you don't have an S. Some guys use 4.09 I think something around 3.77 or so would be a good compromise.
Ring & Pinion, bearings & bushings... all OEM parts, but aftermarket companies will bundle it together as a kit. Z1 Motorsports, for example. Parts and Labor are closely split at about 50% each of the project, and unless you're a mechanic you're going to want a shop who's comfortable with rebuilding a differential. None of this is rocket science, but it's also not a simple "bolt-on" project, either.
That said, this is the single most significant power mod you can do to our cars, except for forced induction. And technically it's not a power mod, because it's gearing, not HP. But man oh man, that low-end torque is a rush. Exhaust & tune are incremental things. Short gears is next level.
https://www.myg37.com/forums/g37-sed...6mt-sedan.html
That said, this is the single most significant power mod you can do to our cars, except for forced induction. And technically it's not a power mod, because it's gearing, not HP. But man oh man, that low-end torque is a rush. Exhaust & tune are incremental things. Short gears is next level.
https://www.myg37.com/forums/g37-sed...6mt-sedan.html
Registered Member
Joined: Apr 2015
Posts: 1,153
Likes: 183
From: ATX
Ring & Pinion, bearings & bushings... all OEM parts, but aftermarket companies will bundle it together as a kit. Z1 Motorsports, for example. Parts and Labor are closely split at about 50% each of the project, and unless you're a mechanic you're going to want a shop who's comfortable with rebuilding a differential. None of this is rocket science, but it's also not a simple "bolt-on" project, either.
That said, this is the single most significant power mod you can do to our cars, except for forced induction. And technically it's not a power mod, because it's gearing, not HP. But man oh man, that low-end torque is a rush. Exhaust & tune are incremental things. Short gears is next level.
https://www.myg37.com/forums/g37-sed...6mt-sedan.html
That said, this is the single most significant power mod you can do to our cars, except for forced induction. And technically it's not a power mod, because it's gearing, not HP. But man oh man, that low-end torque is a rush. Exhaust & tune are incremental things. Short gears is next level.
https://www.myg37.com/forums/g37-sed...6mt-sedan.html
Also since you have VLSD, what kind of diff fluid did you use? Any additives?
Last edited by qmantran; Nov 27, 2017 at 10:50 PM.
BTW, heck of a build thread you've got there, Chuckie. The OP should definitely read through it.
I use Redline gear oil in my transmission and diff. No additives... not familiar with that topic.
Last edited by Rochester; Nov 28, 2017 at 08:46 AM.