Mountain Pass Performance - Model 3 rear suspension arm

Mountain Pass Performance Model 3 rear suspension arms, great savings on weight while allowing for 70mm of suspension.

Mountain Pass Performance's own words about their suspension arms for the Model 3:

NOTE: Different rear springs are required to use this kit. Please select the spring you'd like to use! Only select "No" if you will be sourcing your own springs or if you are purchasing the MPP.R Super Sport spring kit!

These lightweight spring arms are cut from billet 6061-T6 aluminum, and allow you to shed 12 pounds from the rear of your Model 3, while also enabling you the ability to run linear 70mm ID springs, allowing for easy spring changes for those who want to alter the spring rates of their suspension.

These arms are significantly lighter than the OE stamped steel welded arm, and when combined with the removal of a large diameter spring in the rear the weight saving is a massive 12lbs in the back of the car! Combined with our lightweight battery and 2pc rotors, you can achieve a 50lb weight reduction to your Model 3 with no loss in creature comforts. That's massive!

We've designed this arm to still fit perfectly with the factory plastic aerodynamic panel that sits under the factory spring arm. This way there is no loss of aerodynamic performance when switching to our rear spring arm.

Springs:

You are free to purchase your own springs, or have springs purchased from us. Please contact us for spring rates and lengths if you'll be purchasing your own springs.

Spring sets available:

Comfort - Nearly equivalent to the springs sold with our comfort coilovers, and our sports coilovers with soft springs.
Sport - Nearly equivalent to the springs sold with our sports coilovers (5% firmer).
MPP.R Super Sport - These require the front super sport springs to match, and can be purchased as a set here. Select "No" as the spring option if you're buying the Super Sport spring kit.

NOTE: These arms will only work if you have a 70mm coilover upper spring perch already. If you're using our MPP Coilovers, they will work, and the only item required for installation will be rear springs.

CLICK HERE For Installation Instructions

Delivery:

Items in stock are usually dispatched within 1–2 business days. The live stock status is always visible on our website.

Orders received before 1:00 PM are generally shipped the same day from our warehouse. Orders placed after this time or during weekends are processed the next business day. Please note that delivery times may vary depending on the selected shipping method and destination country, with a general delivery time of 1–3 business days for all stocked items. We cannot guarantee delivery within 3 days during periods of high demand or unexpected carrier delays.

Important to know:

Unfortunately, we can never guarantee that an accessory or spare part will fit your vehicle 100%. As long as the correct model and model year are selected, the part should fit – but variations may still occur. If you are unsure, we recommend contacting us before placing your order – we’re happy to help you check!