I thought a weighted shift knob was the hot ticket.

I tried both and found I prefer a lighter one. A weighted knob muted the feel of the shifter while a light one enhanced it. It also depends on the car - cable shifters appear to benefit more from weighted knobs than direct linkage.

Really depends on what kind of driving experience you're looking for. Non- enthusiasts typically want the weight to numb the feedback. Enthusiasts want to enhance every little thing that's going on, because it's part of the driving experience.

Another thing to consider is in the long term, weighted knobs are going to accelerate wear of the shifter mechanism. It's why in your Owners Manual it states not to rest your hand on the shifter.

I'm not even a fan of short shifters.
And I think a weighted knob is trying to make the
short shifter, with the different pivot point, work better.

Though I have heard and read on this theory quite a few times, when it comes to the BRZ, at least, I have not seen such a thing in the manual. I have also seen a video that seems to do a good job of explaining why, based on the transmission design in the BRZ, there is no damage done when resting your hand on the shift lever. Either way, as a good habit, I never do it. But I do have a slightly heavier shift knob than stock.

Raceseng seems to say there's no issue. But then again, they sell shift knobs, so they may not be the only source of choice.
https://raceseng.com/blog/general/is...20transmission.

EDIT: It's been a while since I watched the video, and now that I see it again, it doesn't necessarily have to do with the BRZ transmission in particular. More in general.
Also to be more specific, resting your hand will also have a lot to do with how much weight you are actually putting on your shifter and whether you're moving it around a good bit or not.
The point I mainly wanted to make was that weighted shift knobs, in particular, should have little to no measurable damage to the transmission or the shifting mechanism.

Like riding the clutch. I've had people tell me 'I've rested my foot on the clutch for 100k miles without issue'. It's just not a good practice. As an enthusiast (and more so as a track person) I'm just offended by it, lol.

The fact of the matter is, no one is going to drive two identical cars under the identical conditions for thousands of miles so they can measure the difference in shifter linkage wear.

What do you mean by "shifter mechanism?"

If you meant to say it accelerates wear on the synchros, then yes, weighted shift knobs do that. Because typically it allows sloppy shifters the extra leverage to slam a car into gear that wouldn't otherwise go in.

Are you the engineer there?

It's a generic term to cover direct, linkage, or cable. They all have parts that slide/move that are susceptible to wear.

Good point on the heavy knobs forcing a shift. I know on the STi 6mt, the guide pads on the shift forks can wear out prematurely. It's a ton of time to replace a fork that only has a small worn-out piece of plastic. The symptoms of this are increased trans sounds into the cabin and vibration felt in the knob. I don't have any experience with the BRZ trans yet, to know if those same issues would or could arise.


Yes. I'm the guy who has designed all of Killer B's products since 2009.

Coils > wheels > maybe control arms if necessary


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True. I don't exactly disagree. But then again, with a shift knob, I think it's quite a different story. Maybe I'm not familiar with how heavy some can get, but mine, in particular, is about 1lb. This is over 2x the weight of the stock knob. But we're talking about less than a pound of difference. I don't think there's really any measurable difference to be made there when it comes to the damage it may cause. I could agree that resting your hand on the knob could be different, and would make more sense to compare to your clutch analogy. But I don't believe the same could be said about a shift knob.

Could be wrong though, hence why I tried to do a good bit of searching on the subject prior to making my purchase.

...and the world will never know. We'll only ever have speculation here :/

MTEC clutch spring - installed
Camber bolts.
Window tint all around. 25 and 50 Installed.

Mod the airbox for induction noise, quiet catback of some sort for the eventual uel headers and tune.
Small sub under the floor.

Cheap 17 inch wheels and some AS tires here before November.

PPF if I can find it for less than a paint job.

BRZ Dual Air Oil Separator to be Released soon...
that's great news, will your offering be available by July??

#1 pay it off