Z1 350Z / G35 Aluminum Subframe Bushing Collars
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starstarstarstarstar_half 4.9/5 - (25 Reviews)

Product Description

The subframe on your 350Z / G35 is designed to blend comfort with performance, using soft rubber bushings on all four mounting positions. These bushings work well for a car driven in a stock environment, but when your car is subject to the harsh power transfer that takes place in drifting, circuit, or drag racing they leave a bit to be desired. Solid subframe bushings are available, but changing these is no easy feat and requires that the subframe is completely removed and factory bushings are cut out, and the compromises they bring make them less than ideal for most street or dual-use cars. This is an expensive and time-consuming repair.

Keeping these challenges in mind the Z1 R&D team put their minds to work and began developing a simple and cost-effective, yet easy to install solution. 

Why is subframe rigidity important?

Maintaining subframe rigidity in relation to the chassis helps maintain suspension geometry when under suspension load or drivetrain torque, helping reduce harsh and harmful wheel hop. Z1 Subframe Bushing Collars take up slop developed by old stock rubber subframe bushings, to yield a more responsive and direct suspension while reducing wheel hop on aggressive launches.

These 8 piece aluminum collars install above and below each of the four bushings and retain the stock anti-squat geometry. Installation can be completed in your driveway without any special tools, making this the most cost-effective solution. Because OEM rubber bushings are retained this offers minimal compromise in driving comfort and NVH.

Features:

  • Vehicle Specific Design
  • Greatly Improves Drivability With More Predictive & Surefooted Response 
  • CNC Machined From Billet Aluminum
  • Black Anodized Finish With Laser Etched Logo
  • Better Value When Compared With Other Subframe Bushings
  • Engineered and Tested IN HOUSE On Various Platforms

Fits:

  • 2003-2008 Nissan 350Z
  • 2003-2006 Infiniti G35 Sedan
  • 2003-2007 Infiniti G35 Coupe

Will NOT fit 2007-2008 G35 Sedan models. Subframe collars for those models can be found HERE.

For the greatest effect, use these on cars with Solid Differential Bushings!

Z1 350Z / G35 Aluminum Subframe Bushing Collars

Fits models: 350Z / G35...
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$149.99

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Z1 350Z / G35 Aluminum Subframe Bushing Collars
$149.99
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Z1 350Z / G35 Aluminum Subframe Bushing Collars
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What our customers say

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Andrea
November 12, 2024
Definitely suggested! Better rear and sportier stability, oem ride comfort, no headache to replace the oem bushing (unless totally worned out).
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Matthew
September 7, 2024
Very easy to install. A genius design. Stiffened up the rear and now I get a lot more feedback
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Mason
May 27, 2024
big diff car had 215k miles. had these installed car feels alot better. adds just enough stiffness, not much more vibrations.
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Cody
August 10, 2023
Easy install for stiffening up the subframe!
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ELLIOT
March 16, 2023
Installed these at the same time as solid diff mounts. The rear end is definitely more planted. I would recommend both for the price. (You're going to be in there anyway)
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Anthony
November 1, 2022
Easy install, great result.
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Dhiren
October 29, 2022
They work great. I don't notice any difference with throttle transition like most do, but gear shifts are easier and somehow the shift knob now vibrates less than stock?! Launching hard or even just enthusiastically from standstill is much better. Less play in the drivetrain. Best of all, I don't have to correct mid-turn on track days. Definitely easier to install than replacing the bushes entirely but the estimation of 30-60 min is a bit optimistic if you are doing this at home on jackstands. The instructions could be a bit more detailed regarding this, maybe with a diagram of how to orient the rear top collars. Even when oriented correctly, if the subframe is not lowered perfectly level, the top collars won't just slip in. This was probably die to me supporting the subframe at the differential instead of the frame itself causing the subframe to lean backward. I wouldn't say there's a noticable increase in NVH but you do hear some drivetrain whine when accelerating flat out. I actually enjoy the sound. This is on a stock suspension 2008 350Z with Z1 urethane differential bush.
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Matthew
April 17, 2022
Super easy install. Definitely worth the money.
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Trent
February 22, 2022
Fit good, easy install, noticed a big difference
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Justin
October 3, 2021
These are an insanely important and easy upgrade to your car, I would say do this first before any of the rest. We started with differential bushings and transmission bushing, which both made a huge difference and made the care get character, however the rear subframe bushings make such a big difference in eliminating the wheel hop and bring the car together on the track, it is a must have, and probably by it self would have been my first choice to get if you couldn't buy all 3. If you can afford all 3, get all them before you do anything else to your car.
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Jose
September 9, 2021
Awesome quality. Fit amazing well. No issues.
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Riley
August 22, 2021
Easy install and a positive result that I felt first drive. Good option because you don’t have to spend all day dropping the subframe and pulling bushings.
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Jeffery
June 25, 2021
If you are planning on doing your differential bushings make sure you order these subframe collars as well. It is MUCH easier to install these when the differential is out of the subframe (hopefully while you are installing new differential bushings). I installed these collars along with Z1's solid differential bushings and a 1 piece driveshaft. The rear end is so much stiffer and you feel connected to the road. Wheel hop is a thing of the past. A great chassis upgrade that ACTUALLY makes a difference. GET THESE!
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Matt
April 27, 2021
Fitment was tricky and instructions where a bit foggy as which way to rotate the collars but after some trial and error they fit great.
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William
March 26, 2021
Awesome product!! Love the stability this adds to the Z!
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Justin
February 10, 2021
Perfect fit and it stiffed up the rear! would definitely recommend!
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Richard
February 3, 2021
Installed on a 06 G35 sedan 6mt. Easy install made a big difference, no more shimmy. Great product!
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Arthur
January 28, 2021
I love these subframe collars. They were easy to install after I watched the z1 Motorsports video. Longest part was jacking up the vehicle for the jack stands. You can feel the difference in subframe support for sure.
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Ed
January 25, 2021
Eliminate torque loss, it's a must have for Z 33, "Highly recommend".
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Spencer
January 25, 2021
Easy install and bam just like that no more penguin shimmy!
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Kevin
March 15, 2019
Amazing product, have installed this on my pro am drift car 350z and my freinds drift car 350z.... this is a must have no excuses not to do it yourself just like the instructions say it should only take you 30 min to lower the subframe, install, then tighten it back up! Used to break cv axles all the time, it’s been about a year since I’ve installed these and I’m on the same axels!!!! Feels just like having solid diff bushings especially if you have true coil overs and z1 diff bushings! Eliminated my wheel hop completely!! Used to hate that thud in the rear end when dumping the clutch from a dig or clutch kicking durning or initiation of a drift. Used to have a 4ft tall pile of broken cv axles! Lol! Thanks Jon and everyone at z1 for making this simple but yet amazing product!
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Gareth
January 27, 2019
One of the best "bang for buck" upgrades you can do your G or Z IMO. I've fit these onto my M35 Stagea (JDM wagon which uses the same rear subframe) and the improvement is night and day. The inserts tightened up the response of the rear end of the car and completely remove the sloppiness that could be felt in fast left-right transitions. Steering is now more direct and you turn into the corner once instead of turning in and then correcting once the rear end has "penguin-shuffled" about. Whether or not you've already upgraded springs/shocks/sway bars these inserts will produce an immediately noticeable improvement while only increasing road noise/vibrations slightly. Couldn't imagine going back to how the car was before!
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Matt
January 9, 2019
I had to chime in on these. They are great! I noticed a difference immediately on my '03 and they are well worth the effort. Speaking of effort, don't let anyone tell you it's a half hour job! My bushings had some flashing from the molding process that hindered my ability to drop in the right rear upper piece. I aligned it the best I could by looking up through the bushing and it went together as planned. I'm a good mechanic who's very capable, but 30 minutes is really not feasible unless you have a new car on the lift with all the tools laid out. For the rest of us, you better plan an hour or more.
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Denis
May 24, 2018
After 2 runs on the track, the rear end of my G35 is a lot more predictable. Oversteer is just perfect. I didn't expect a change that much. Great investment same if he took me 6 hours to install. Great product guys at Z1.
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Edmund
October 27, 2017
this definitely improved my 60ft at the drag strip. makes the rear end more solid and makes launching the car way better. i would recommend this for the money!