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Engine, Exhaust, Transmission Discuss the FR-S | 86 | BRZ engine, exhaust and drivetrain. |
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#15 |
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Hey can I ask a few questions? I drive a 2014 BRZ A/T, only bolt on mods and a tune, nothing crazy. (Front pipe, EL catless header, Exhaust, drop in filter) nothing crazy. I need new motor mounts. I've done some research on these forums and it seems that:
-If you have some mods, you shouldn't replace your mounts with another set of OEM mounts, is that right? -Cusco and Perrin add a lot of NVH which is something I do not want because this is my daily. STI mounts add very little NVH, but they are still recommended for a car with some mods. They are almost like OEM+, so it seems like this is the route I should go with correct? Now with the transmission mount. You don't actually need to replace the entire thing, just the rubber insert is that correct? Does it matter if I have an A/T? I'm considering getting the Whiteline insert. But will that add any NVH? I'm not clear on that for the transmission mount. Thanks for your help, I just want to make sure I buy the best thing for my preference. Sorry if these are silly questions, I'm just not 100% clear. |
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#16 | ||
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Thanks everyone once again for your time and effort
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#18 | |
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I never did, just give it an inspection at least and replace as needed.
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I'm thinking about doing the Sti engine mounts, Whiteline Trans Insert Bushing, Perrin Support Mount, Perrin Shifter Mount Bushing, Whiteline Positive Traction kit, and Whiteline Support Outrigger Insert too as a daily. Let me know how the NVH is once you put in the STI mounts.
Ive heard the Perrin Trans Support Mount is the 2nd most NVH, and Whiteline Support Outrigger is 3rd out of what you have done. I've also heard that the STI Trans Mount does the same as the Perrin Support Mount, but doesn't increase NVH.
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#22 | |
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Also STI trans mount is better than perrin support mount + whiteline bushing for transmission. does a better job and is less harsh. |
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#23 | |
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Do you recommend both diff bushing sets 925 and 922? or just the 925 if the 922 makes the rear end too stiff?
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I have had my car with solid subframe mounts and the 925's, then traded diffs and am back on stock bushings, can't tell that much of a difference.
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I don't recommend the Perrin transmission mount 'bushing' bolt thing.
It adds a stupid amount of NVH for probably very little benefit. I'm going to remove mine when I get a chance and just leave the Whiteline bushing insert. |
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#26 |
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Yup, I took out my Perrin tranny mount. Awful amount of NVH. I run their shifter bushing with Whiteline trans mount.
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#27 | |
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I have both. At present, only the 925s are installed. I'm a little leery of increasing NVH to an intolerable level and decided to take it in stages. The 925s reduce drive train wind-up and seem to make shifts a lit more responsive. It's a hard call on the degree to which they add to NHV. At roughly the same time I installed them I did a pretty thorough sound deadening project in the trunk and the car is substantially quieter from that. All in all, if given the choice, I'd do the 925s again.
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#28 | |
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The 925 is much, much easier to install than the 922, and I would still install it again. 922 is much trickier because you want to make sure the subframe doesn't drop on your head or that you don't strip the subframe bolts. It took me awhile to get the guts to install it to be honest. I would probably still do it again, but think about what you want your car to feel like after everything is said and done. |
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bushing, engine, mounts, transmission, vibration |
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Thread | Thread Starter | Forum | Replies | Last Post |
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Perrin Shifter Bushing / Trans Mount Support (SOLD) | Apex_BRZ | Transmission and Driveline | 1 | 02-24-2017 06:03 PM |
DIY - AVO Transmission Mount Insert Bushing | AVOturboworld | DIY (Do-It-Yourself) Guides | 0 | 06-04-2014 09:19 PM |