Both the SX-1 camber arms and TSX-1 toe arms are not too difficult to install for the home mechanic and can probably be completed within 2-4 hours.  However we would recommend having your local alignment shop complete the installation since they can immediately perform an alignment afterwards. Installing our kit or any aftermarket car parts does not void your warranty.  Please check our FAQ section for much more detail on that common question.

Below we have a great new installation video by EVfixMe, a local shop in Costa Mesa, California.  In this video you’ll learn step by step how to install our kit properly so either you or your mechanic can do the job right.  If you’re in the southern California area you can purchase our kit and bring it to them for installation in a couple hours.  If you need help finding an installer near you we will do the research and find a shop after you purchase your kit.

Since we’ve received so many questions wondering what is the optimal alignment settings after the arms are installed, we decided to include this at the beginning of the installation instructions rather than the end where it can be overlooked.  Please share this with your alignment shop.

After you or an alignment shop installs our control arms and lowering links you will want to align the wheels immediately.  We recommend the following steps:

1. Set your Tesla’s height to the height you plan to drive most frequently.  Usually that would be the Standard or Low position on your monitor.  The height of the vehicle will change the geometry of the suspension, especially the camber.  So it’s important to have the height set first before alignment is performed.

2. Have the alignment shop set your rear camber to -1.0° and your rear toe to 0.20°.  This setting will provide the best all around tire wear and performance for your Tesla and keep your alignment geometry within Tesla’s spec.

3. If you’re installing these as part of the acceleration shudder kit then set your RSX-1 links to -4.0.

The full range of Tesla’s wheel/tire alignment specs for the Model S and X are below:

TESLA S – Air Suspension AWD TESLA X
Front Camber: -0.3° to -1.2° Front Camber: -0.3° to -1.2°
Front Caster: 3.5° to 4.5° Front Caster: 3.7° to 4.7°
Front Toe: -0.20° to 0.10° Front Toe: -0.15° to 0.15°
Total Front Toe: -0.40° to 0.20° Total Front Toe: -0.30° to 0.30°
Steer Ahead: -0.05° to 0.05° Steer Ahead: -0.05° to 0.05°
Rear Camber: -0.75° to -2.75°  We recommend -1.0°
Rear Camber: -0.5° to -2.5°  We recommend -1.0°
Rear Toe: 0.05° to 0.35°  We recommend 0.20°
Rear Toe: 0.05° to 0.35°  We recommend 0.20°
Total Rear Toe: 0.10° to 0.70° Total Rear Toe: 0.10° to 0.70°
Thrust Angle: -0.20° to 0.20° Thrust Angle: -0.10° to 0.10°

Before we begin please look at the below image to see how the arms will fit within the rear suspension.  Notice how the small ball joint faces towards the front of the vehicle and the rod end side (side with the clamps and adjuster) attaches to the wheel side.  It may be helpful to take some photos as you proceed for later reference.

The below instructions are intended to be followed by professional mechanic or experienced home mechanic.  The installer assumes full responsibility for the safety and functionality of the installation of our suspension products.

N2itive SX-1 Camber Arm Installation

  Warning: If the vehicle has air suspension, activate “Jack” mode on the touchscreen before raising and supporting the vehicle.   Smart Air Suspension will automatically self-level, even when vehicle is powered off. You MUST disable this system by activating “Jack” mode prior to raising the vehicle,  otherwise it may attempt to self-level, causing serious damage, bodily injury, or death.  Jack mode will automatically cancel when the vehicle is driven over 5 mph (7 km/h)

REMOVAL

    1. Begin by safely jacking up the rear side of the vehicle that you will be working on and supporting the vehicle with jack stands.  Never put the jack or jack stands under the battery!  The below image shows the 4 intended locations to jack up a Tesla S/X.  We recommend using lift pads between your jack and the vehicle’s frame to prevent damage to the jack points, battery and surrounding areas.  Do not work on an incorrectly supported vehicle. Doing so can cause serious damage, bodily injury, or death.  On a personal note one of my client’s sons was killed many years ago when he supported his vehicle by using a cinder block instead of a jack stand.  The cinder block crumbled under the weight of the vehicle while he was underneath.  Furthermore, do not place anything between the floor and the jack stand such as carpet which can slip and cause the car to come off the jack stand.
      Tesla-S-X-Jack-Stand-Points
      How To Jack Up Your Tesla S or X
      Model-S-X-Lift-Jack-Point
    2. Remove the wheel and set to the side.  Later when you reinstall the wheels they should be torqued to 129 ft./lbs. (175Nm)
    3. Before  you being, start by taking multiple photos of your current control arms and suspension in case you need to reference it later during assembly.  Take notice of the positioning of the small sensor link.  When you reassemble, you must install it the same way.  Gently pry the short sensor link off of the ball with a large flat head screwdriver or really small pry bar.  Use the original camber arm a fulcrum point when prying off the sensor link.  Set the screwdriver or pry bar as close as possible to the ball joint without rubbing against the ball joint.
      Tesla-Model-S-X-Camber-Arm-Ball-Joint
    4. Remove the bolt that connects the upper camber arm to the knuckle. (torque 103 ft./lbs – 140Nm)
      Tesla-Model-S-X-Camber-Arm-Bolt
    5. Remove the bolt and nut that connect the camber arm to the subframe. (torque 96 ft./lbs. – 130 Nm)
      Tesla-Model-S-X-Camber-Arm-Bolt
    6. Remove the camber arm from the vehicle.
    7. Installation of the new adjustable camber arm is similar to the reverse of the removal with some exceptions.  Begin by placing the new N2itive SX-1 adjustable camber arm in place and insert the bolts.  Confirm you have the correct direction and side in place.  Note, the SX-1 arms are not the same.  There is a left and right arm.  See the image at the top to see how the arms are arranged in the vehicle.  At this point lightly tighten both bolts by hand. If you’re installing the TSX-1 toe arms as well this would be the right time to do it.  That is, before torquing down the bolts.  Next, raise the suspension to ride height level and torque down both bolts for the SX-1 arm and TSX-1 arm if installed.  You want to essentially push the wheel back up into the wheel well to your normal driving height.   This is important!  Do not tighten the bolts down before raising the suspension or you will ruin the bushings.  The camber arm bolt that connects to the knuckle should be torqued down to 103 ft/lbs. (140 Nm).  The bolt that connects the camber arm at the subframe needs to be torqued down to 96 ft./lbs. (130 Nm).  If you haven’t already, remove the original aluminum ball from the ride height sensor link socket that we worked on in step 3.  Add a small amount of white lithium or other appropriate automotive grease into the socket and carefully press the socket over the ball on the new arm.
    8. To align or adjust the SX-1 camber arms you will need to loosen both clamping mechanisms using the appropriate size Torx drivers.  That’s a T45 for the two larger Torx bolts and a T30 for the Torx bolt in the small clamp.  Remove the bottom rear valance of the vehicle to gain clearance to adjust the arms while the wheels are still on the vehicle.  Use a 30mm open end wrench to turn the double adjuster.  Tightening or clockwise rotation will make the arm shorter and increase the negative camber. Loosening or counter clockwise rotation will lengthen the arm and increase positive camber. Once your alignment technician has found the correct length the clamps need to be tightened down. For the clamp that’s built into the arm with the dual Torx bolts you will need to alternate torque these bolts a few times with a drop or two of blue Loctite to 20 FT/LBS (27 Nm). This is important so the bolts have the correct torque and don’t come loose!  Being that it is clamping mechanism if you were to tighten one bolt to 20 FT/LBS and then the other to 20 FT/LBS now the back tension on the first bolt has been greatly reduced to maybe only 5 FT/LBS since tightening the second bolt relieved so much tension from the first bolt!  So alternate your tightening back and forth until you can get 20 FT/LBS on each bolt.   See image below.
      Torque specs for Torx bolts on N2itive SX-1 and TSX-1 adjustable control arms
      Warning Icon WARNING:
      When tightening the two T45 Torx bolts they need to be alternately tightened at least 3-4 times each until each bolt reaches the correct torque tightness!  Also for the small clamp on the rod end side it needs to be clamped down in an upright position as shown below!   This is crucial for proper vehicle fitment!  Do NOT tilt the clamp to the side at all!  Keep the clamp straight up and in alignment with the arm as pictured below!

      Adjustable camber arm clamp needs to up in an upright position! This is crucial for proper vehicle fitment!

WARNING: Do not torque down the bolts until the suspension is pushed up back to ride height level!  Doing so will strain and cause premature failure of the rubber bushing.  This incorrect installation would not be covered under warranty.

Warning Icon WARNING :Check locking nuts to confirm they are still capable of gripping the bolt threads and that they cannot rotate by finger strength. If you are able to rotate the locking nuts with your fingers or if the locking nuts have been removed and tightened more than 4 times then discard them and purchase new locking nuts from Tesla.



Depending on your previous ride height levels in addition to the amount of negative camber from your original camber arms, it may be necessary to perform a ride height calibration after your alignment.  You will need to have a 4-wheel alignment performed immediately which is why we suggest just having an alignment shop install the arms and then they can align it right away afterwards.  Please show the alignment shop these installation instructions to avoid problems.

N2itive TSX-1 Toe Arm Installation

  Warning: If the vehicle has air suspension, activate “Jack” mode on the touchscreen before raising and supporting the vehicle.   Smart Air Suspension will automatically self-level, even when vehicle is powered off. You MUST disable this system by activating “Jack” mode prior to raising the vehicle,  otherwise it may attempt to self-level, causing serious damage, bodily injury, or death.  Jack mode will automatically cancel when the vehicle is driven over 5 mph (7 km/h)

REMOVAL

  1. Begin by following the instructions above to safely jack up the vehicle.
  2. Remove the wheel and set to the side.  Later when you reinstall the wheels they should be torqued to 129 ft./lbs. (175Nm)
  3. Release the clip that attaches the electric parking brake wiring harness to the toe arm.
  4. Remove the bolt that attaches the toe arm to wheel knuckle.
  5. It is not possible to remove the eccentric bolt that connects the toe arm to the subframe without dropping the subframe down to provide proper clearance.  Dropping the subframe is a time consuming job so we suggest cutting out the old eccentric bolt with a vibrating saw and using the new bolt that we’ve included for you to use.  The new bolt can be inserted from the opposite side.  Remove the nut on the eccentric bolt that attaches the toe arm to the subframe. Using vice grips, pinch the tip of the eccentric bolt to prevent the bolt from rotating.  Carefully saw off the head of the bolt on the opposite side.  Now pull the cut bolt all the way out.  If the bolt is seized from previous corrosion and cannot be pulled out, you may need to use lubricating spray and a punch to tap the bolt through and again cut the bolt when the bolt comes in contact with the chassis until the bolt is all the way out.
    Tesla Model S and X Adjustable Toe Link Arm Installation Instructions

INSTALLATION

  1. Place the new TSX-1 toe arm in position.  Unlike the SX-1 camber arms the TSX-1 toe arms do NOT have a left and right side.  Both TSX-1 arms are the same.  The rod end side of the TSX-1 toe arm fits into the wheel knuckle.  Unlike the SX-1 camber arms, hump on the toe arm side must be face down.  Loosely install the original Tesla bolt back into the knuckle to hold the arm in place.
  2. Fit the opposite side of the arm between the subframe clevis and suspend it with the new bolt we sent you.  Install the washer and locking nut on to the bolt.  Again do not tighten down fully yet.
  3. Next, raise the suspension to ride height level first and then torque down both bolts.   You need to essentially push the wheel back up into the wheel well to be at your regular ride height.  This is called pre-loading and is very important!  Do not tighten the bolts down before raising the suspension. Doing so will twist the rubber inside the bushing and cause it to fail.  If you’re installing the SX-1 camber arms then now would be the time to torque down those bolts as well.  The toe arm bolt that connects to the knuckle should be torqued down to 96 ft/lbs. (130 Nm).  The bolt that connects the toe arm at the subframe needs to be torqued down to 59 ft./lbs. (80 Nm)
  4. Reattach the electric parking brake wiring harness to the SIDE of the toe arm with a new zip tie or similar. Do not attach the wiring harness to the top of the toe arm as it could become severed if the vehicle suspension were to bottom out from a speed bump or pothole or similar.   Trim the zip tie if necessary.
  5. Review all work performed and reattach wheel torqued to 129 ft./lbs. (175Nm)
  6. To adjust the TSX-1 toe arms you will need to loosen both clamping mechanisms just like on the SX-1 camber arms using the appropriate size Torx drivers.  Remove the bottom rear valance of the vehicle to gain clearance to adjust the arms while the wheels are still on the vehicle.  Use a 30mm open end wrench to turn the double adjuster.  Tightening or clockwise rotation will make the arm shorter and increase the negative camber. Loosening or counter clockwise rotation will lengthen the arm and increase positive camber. Once your alignment technician has found the correct length the clamps need to be tightened down. For the clamp that’s built into the arm with the dual Torx bolts you will need to alternate torque these bolts a few times with a drop or two of blue Loctite to 20 FT/LBS (27 Nm). This is important so the bolts have the correct torque and don’t come loose!  Being that it is clamping mechanism if you were to tighten one bolt to 20 FT/LBS and then the other to 20 FT/LBS now the back tension on the first bolt has been greatly reduced to maybe only 5 FT/LBS since tightening the second bolt relieved so much tension from the first bolt!  So alternate your tightening back and forth until you can get 20 FT/LBS on each bolt.

WARNING: Do not torque down the bolts until the suspension is pushed up back to ride height level!  Doing so will strain and cause premature failure of the rubber bushing.  This incorrect installation would not be covered under warranty.

Warning Icon WARNING: Check locking nuts to confirm they are still capable of gripping the bolt threads and that they cannot rotate by finger strength. If you are able to rotate the locking nuts with your fingers or if the locking nuts have been removed and tightened more than 4 times then discard them and purchase new locking nuts from Tesla.

Please contact us with any questions or help you may need.  We are here for you.

Below is the original home installation video created by one of our very first customers.  This will be helpful to watch in addition to the video above for home installers since it was done with a jack and jack stands like most home installers will have access to.  Thanks Steve for creating our first install video!