Installing a 4/5 Point Harness

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Do you autocross your Impreza? Adding a racing harness to your car will dramatically help you lower your times by keeping you planted to the seat. Your 3 point seat belt is great for the street and keeping you in place as designed in an accident. The factory belts and the entire car have been designed knowing the way your body will move in an accident. For autocrossing where you want to remain one with the seated so you can feather the clutch and heal-toe. The only way to accomplish that is with a 4 point harness.

Tools Required

  • 12mm socket
  • 14mm socket
  • Flat-blade screw driver
  • Razor Blade, or Exact-o Knife

Materials

  • Harness Eyelet Bolts
  • Instructions  (click any picture for a full resolution image)

    Removing the lower rear seat cushion
    • Give yourself some extra room by sliding both front seats full forward.
    • Use your ratchet and 12mm socket to remove the two seat cushion bolts .
    • Gently lift and pull out the seat cushion.
    • CAREFULLY remove it from the car and put in a safe place away from where you are working. It is extremely light.

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    Click on the picture for a full size version

    • Remove the seat rail end plastic end caps, and then remove the 2 - 14mm bolts that secure the seat rails.
    • Gently, but firmly pull up. This is a little "rivet" like thing that pops out. The main thing you want to do is make sure you don't damage your trim! I worked it up and down a few times and then gave a firmer tug up...and pop there it went.
    • Gently pry up the lower trim on the rear door jamb. There are two clips. These should come out easier than the fastener. Just make sure you apply even pressure to the trim to avoid damaging it (Figure 10).
    • Gently pry up the lower trim on the front door jamb. There are four clips. These should come out easier than the fastener. Just make sure you apply even pressure to the trim to avoid damaging it. You do not need to remove the front fastener (Figure 11).
    • CAREFULLY grab the center trim on the b-pillar, and pull it towards the front of the car. Work a small section at a time. Once it gets past a certain point, the whole thing loosens up.
    • CAREFULLY grab the center trim on the b-pillar, and pull it towards the rear of the car. Work a small section at a time. Once it gets past a certain point, the whole thing loosens up.
    • Remove the rear b-pillar fastener to release the entire piece (Figure 12).
    • With the b-pillar trim off, locate the small clip under the carpet next to the rear door jamb. Gently pry the clip lose (a small screwdriver might help, but make sure not to don't force the clip, or scratch your paint) (Figure 13).

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    Click on the picture for a full size version

    • Push the carpet back (it's very stiff, so be firm).
    • Locate the brass 14mm bolt holding the left-hand driver's side lap belt. and unbolt it with the 14mm wrench. This is tedious due to limited space, so just alternate between open and closed end as best you can.
    • Carefully remove the bolt, noting the order of all the washers. Remove the bolt, and slip the left-hand lap belt on the bolt. Then replace all the stock hardware.
    • Tighten the bolt as best you can. You can get the torque wrench in, but it requires peeling back more carpet. I just tightened as much as I could with the wrench. (Probably more than 30 ft-lbs)
    • Ok, now put the belts into the slot in the carpet, replace the carpet clip.
    • Put the b-pillar trim back on, making sure than the stock seat belt (the part that goes to the roller) is BEHIND the trim. Put all remaining trim pieces back on in exactly the reverse order of how they came off. Remember to do the fastener for the rear trim piece near the "E" mounting point!

     

    Click on the picture for a full size version

    Click on the picture for a full size version

    Click on the picture for a full size version

    Click on the picture for a full size version

    Click on the picture for a full size version

    IMPORTANT

    These instructions are for installing a racing harness for light duty use. Never use a harness on the street, even if it is DOT approved!