2013 WRX: Cobb short shifter + Kartboy front/rear shifter bushings.
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This is a discussion on 2013 WRX: Cobb short shifter + Kartboy front/rear shifter bushings. within the Transmission & AWD forums, part of the Tech & Modifying & General Repairs category; 2013 WRX. I installed my Cobb short shifter last week. Very smooth and simple install, just make sure you have ...

  1. #1
    Registered User olenderc's Avatar
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    2013 WRX: Cobb short shifter + Kartboy front/rear shifter bushings.

    2013 WRX. I installed my Cobb short shifter last week. Very smooth and simple install, just make sure you have snap ring pliers. Other than that couldn't be happier. Installing this definitely tightened up my shifts. I'm not sure if that's how it was supposed to happen since I assumed your shifts tightened up only after doing the front/rear bushings. I guess not, and just installing the short shifter shortened the throw (as you would expect) but also made shifts a little more precise I would say. It did seem like shifting required slightly more "force" which is what I mean by the shifts tightened up. Not a bad thing, not like it makes shifting hard or anything, just tighter and shorter.

    My front/rear Kartboy shifter bushings arrived today. I was excited and jumped right into installing. Definitely a little challenging having never done anything like this and only going off of the research I did with respect to installing videos and guides, but it can be done. The rear shifter bushing was by far the most challenging thing I've done yet on this car. I almost gave up and put the crappy OEM shifter bushing back on because I could not get both bolts threaded at the same time. It seems the holes on the bushing don't like up perfectly with the threads on the body of the car. I knew this ahead of time since so many people mentioned it in reviews of the product but I gave it the benefit of the doubt and went for it anyway. A couple hours later after literally wrestling with it from all possible angles, I got the second bolt to catch onto something. It seemed to screw in a little snug at first but wasn't too difficult and didn't get any harder to tighten so I'm hoping I didn't cross-thread the bolt. But it doesn't matter because I don't think I plan on ever changing that out again it was such a pain to do in the first place. I guess the manufacturer hasn't really taken customer feedback into account when continuing the production of it's rear shifter bushings; it just seems like this could easily be avoided by making the holes spaced apart further by like a millimeter. But I digress.

    Only thing is, to my dismay, I didn't really notice much change in my shifts from installing the front/rear bushings in addition to the short shifter. There is maybe a slightly more pronounced gear "whine" in 1st and 2nd gear, which others have also mentioned. It is not really that much more noticeable from stock. I guess I was expecting even tighter and more precise shifts, but nothing really jumped out at me. If anything I guess I just upgraded to more quality bushings that will probably last much longer than the stock ones would have.

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    Registered User 98sob's Avatar
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    I suggest the Group N transmission mount, torque solutions pitch stopping mount, and some stiffer transmission cross member bushings. Everything really comes together then...and also your transmission will really "whine" then

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    Registered User olenderc's Avatar
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    I'll have to add those to my list and do some research on them. I'm not in a big rush and wasn't planning on going too crazy with mods for my car, just some tasteful mods and things that further my enjoyment of the car.

    I'm just a little disappointed with the bushings. I really thought there would be a more noticeable difference in the feel of my shifts, but it seems most of the change was achieved by just installing the short shifter. There was hardly any difference, if any, after installing the bushings. But oh well, in comparison to the quality of the OEM bushings, its definitely an improvement in that aspect.

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    Registered User maus's Avatar
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    Group N transmission mount makes a HUGE difference.
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    Registered User olenderc's Avatar
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    Quote Originally Posted by maus View Post
    Group N transmission mount makes a HUGE difference.
    Could you possibly elaborate? What changes would one expect to see? I just don't want to spend money on something that doesn't really end up making any noticeable difference like these bushings turned out to be.

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    Registered User maus's Avatar
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    Quote Originally Posted by olenderc View Post
    Could you possibly elaborate? What changes would one expect to see? I just don't want to spend money on something that doesn't really end up making any noticeable difference like these bushings turned out to be.
    Everything is much firmer. On and Off throttle response is much better. That jerkiness you get when you let off the throttle gets eliminated (I also have a KB Pitchstop, but installed the group n mount after I had that on the car for a while). Stock mount you can literally flex in half. Group N is solid.
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    Registered User olenderc's Avatar
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    Quote Originally Posted by maus View Post
    Everything is much firmer. On and Off throttle response is much better. That jerkiness you get when you let off the throttle gets eliminated (I also have a KB Pitchstop, but installed the group n mount after I had that on the car for a while). Stock mount you can literally flex in half. Group N is solid.
    Some people say to replace crossmember bushings and some other stuff "while you're there" since the other components will start to wear faster? Could you do just the Group N, or will you soon have to worry about other things wearing out too fast?

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    and the Funky Bunch Calvinball's Avatar
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    Quote Originally Posted by maus View Post
    Everything is much firmer. On and Off throttle response is much better. That jerkiness you get when you let off the throttle gets eliminated (I also have a KB Pitchstop, but installed the group n mount after I had that on the car for a while). Stock mount you can literally flex in half. Group N is solid.
    How much nvh is there with the mount?
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    Quote Originally Posted by Calvinball View Post
    How much nvh is there with the mount?
    You will notice it but in time you will get used to it.

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    Moderator rage-wrx's Avatar
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    Quote Originally Posted by commbubba19 View Post
    You will notice it but in time you will get used to it.
    His car is pretty quiet. So he should notice it more than most people.
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  12. #11
    and the Funky Bunch Calvinball's Avatar
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    Quote Originally Posted by rage-wrx View Post
    His car is pretty quiet. So he should notice it more than most people.
    whiirrrrrrrrrrrrrrrrrrrrrr

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