ISR Performance Front Upper Camber Arms for the Nissan 370Z and Infiniti G37
If you've lowered your 370Z or G37 and are trying to dial in proper alignment specs, the factory upper control arms aren't going to get you there. The ISR Performance Front Upper Camber Arms are a direct replacement designed to give you the widest range of camber adjustment on the platform, with a tool-free design that's significantly easier to dial in than competitor arms.
What It Is
The ISR Performance Front Upper Camber Arms are a pair of adjustable upper control arms for the Nissan 370Z and Infiniti G37 chassis. They replace the fixed-length factory upper arms with adjustable units that let you correct front camber for lowered ride heights, track alignment specs, or aggressive street setups. Each arm includes a high-quality serviceable ball joint, which means you can rebuild the arm down the road instead of replacing the whole unit when the joint wears out.
What It Does
When you lower a 370Z or G37, the front suspension geometry generates excessive negative camber as the control arms move through their compressed range. The factory upper arms are fixed-length, so there's no way to correct that camber gain back to a usable spec. The ISR camber arms let you adjust the upper arm length to bring camber back into a target range, whether that's mild correction for daily driving or aggressive specs for track use.
The typical adjustment range is +0.5 to -5.5 degrees of camber, which covers everything from stock-style setups to track-focused alignments.
Tool-Free Adjustment
This is the standout feature. Most competitor camber arms require you to remove the ball joint to adjust the length, which means pulling the arm partially apart every time you want to fine-tune your alignment. The ISR arms adjust with a single 19mm wrench, no disassembly required. Quicker alignments at the shop, easier corner balancing if you do your own setup, and significantly less hassle when fine-tuning over time.
Fitment and Compatibility
These arms fit the Nissan 370Z and Infiniti G37. They're a direct bolt-in replacement for the factory front upper control arms.
Important Chassis Clearance Notes
This is critical to understand before purchase. The factory 370Z and G37 chassis has a control arm recess that limits how far the upper arm can extend at any given ride height. The ISR arms can adjust to a wider range than the factory recess can accommodate. What this means in practice:
- If you're trying to correct significant negative camber from a low ride height, you may run out of adjustment range before the arm hits the chassis recess.
- To unlock the full adjustment range, the factory control arm recess can be modified for additional clearance.
- If you don't want to modify the chassis, the recess will limit your maximum adjustment, and you'll get less camber correction than the arm is technically capable of.
Whether or not you need to modify the chassis depends on how aggressive your alignment targets are. Mild lowering with moderate camber correction usually works without chassis modification. Aggressive setups with significant ride height drop and track-spec camber numbers may require it.
Excessive Lowering Warning
On vehicles that have been lowered excessively, check for clearance between the arm and the chassis metal through the full range of suspension movement. Contact with the chassis under compression can damage the arm and the adjusters. This is a normal consideration on heavily modified suspension setups, but it needs to be verified physically before driving.
Who This Is For
These arms fit a few common build profiles. If you've installed coilovers or lowering springs on a 370Z or G37 and your alignment shop can't bring camber back to spec, this is the fix. If you're building a track car or autocross 370Z and need to dial in aggressive negative camber for tire wear and grip, the +0.5 to -5.5 degree range covers most setups. If you've already got camber arms but you're tired of disassembling them every time you want to make an adjustment, the tool-free 19mm design solves that.
What's in the Box
- 2x Front upper camber arms
- Serviceable ball joints (installed in arms)
Installation Notes
Professional installation is recommended. A four-wheel alignment is required after installation. Adjustment should be done with the vehicle at ride height to ensure accurate camber readings. Verify chassis clearance through the full range of suspension travel before driving, especially on lowered vehicles.
Product Details
Brand: ISR Performance
Product: Front Upper Camber Arms
Vehicle Fitment: Nissan 370Z, Infiniti G37
Type: Adjustable upper control arms
Adjustment Range: +0.5 to -5.5 degrees of camber
Adjustment Method: 19mm wrench, no disassembly required
Ball Joint: High-quality serviceable
Quantity: Sold as a pair
Chassis Modification: May be required for full adjustment range on aggressively lowered vehicles
Required After Install: Four-wheel alignment
Key Benefits: Widest adjustment range on the platform, tool-free adjustment, serviceable ball joint, corrects negative camber gain from lowering