Revshift bushings-anyone used them?

[straightsixe30]

Im ready to refresh my subframe, trailing arms, and diff mount bushings. There are a lot of companies out there offering polyurethane upgrades, and with no real world testing its hard to guess which would be best. Its a street car, so no rediculous NVH, but its a sports car, so I like a good feeling tight chassis. Any suggestions/ past experience?

[e30-RTN]

I love mine. I've got 95a bushings and mounts throughout. There's plenty of good reviews on bimmerforums.

[ZM Blue Devil]

We supply and use AKG, they are well designed and test. contact us and we can what the best set up would be for your driving habits/use.

[e30-RTN]

I realize you're a forum sponsor and want all the sales you can get but op wasn't asking about akg or how to buy them lol

[jlevie]

If this is a street car you won't go wrong with the OE parts. They are plenty stiff enough for that service and will not increase NVH.

[GunMetalGrey]

I love my 95A poly from rev, but for a daily I would stay away from 95.

[CrazyJew89]

I just finished installing my 85 rear end revshift kit a couple weeks ago and have been loving it so far. It's so firm and responsive compared to the old rubber and rides like a new car even with the horrendous Michigan roads. As far as your NVH worries so far it has been so smooth and quite I have had to start relearning how to not speed too much, but my old bushings were in pretty poor shape. I also have the revshift guibo and trans and motor mounts and have to say from rubber to 85 you're not going to notice much if any NVH difference, but you will notice a pretty good gain in responsiveness and feel. Winter may change this some, but I can't report on that until it starts getting cold again.

[tinkerputzer]

I just finished installing my 85 rear end revshift kit a couple weeks ago and have been loving it so far. It's so firm and responsive compared to the old rubber and rides like a new car even with the horrendous Michigan roads. As far as your NVH worries so far it has been so smooth and quite I have had to start relearning how to not speed too much, but my old bushings were in pretty poor shape. I also have the revshift guibo and trans and motor mounts and have to say from rubber to 85 you're not going to notice much if any NVH difference, but you will notice a pretty good gain in responsiveness and feel. Winter may change this some, but I can't report on that until it starts getting cold again.

Do you meen 80A?

What is the life expectancy for the softer of the poly bushings such as 80A?

[Bimmerguy91]

My buddy ran some revshift mounts that broke in half. It may be a freak thing but Im just throwing that out there. Not that is has a whole lot to do with the bushings but their polyurethane may be lacking in duarbility. I would love to hear some more input on these since I'm shopping for bushings for when I refresh the rear end of my car

[MR 325]

I realize you're a forum sponsor and want all the sales you can get but op wasn't asking about akg or how to buy them lol

How about you shut your mouth?

Levent wasn't trying to sell anything, he said to call for advice.

[straightsixe30]

I just finished installing my 85 rear end revshift kit a couple weeks ago and have been loving it so far. It's so firm and responsive compared to the old rubber and rides like a new car even with the horrendous Michigan roads. As far as your NVH worries so far it has been so smooth and quite I have had to start relearning how to not speed too much, but my old bushings were in pretty poor shape. I also have the revshift guibo and trans and motor mounts and have to say from rubber to 85 you're not going to notice much if any NVH difference, but you will notice a pretty good gain in responsiveness and feel. Winter may change this some, but I can't report on that until it starts getting cold again.

Thanks, Very informative. I installed the 85 motor and trans mounts, defiantly a much more solid feel, although I do notice when revving you can hear and feel some vibrations in the cabin. Maybe they need to be broken in, once everthing is throughly warmed up its great. Very tight feel.

[Bimmerguy91]

In my experience solid trans mounts are going to increase transmission noise and vibration pretty significantly.

[yardpro]

Glad everyone here had an ok experience with them, i however did not. I had to send some mounts back. nothing wrong with them, i just decided to go another route. after several email and phone calls they finally got back to me. i was asking for an RMA to return the mounts. They asked what mounts I needed instead and i told them i didnt need other mounts, i just needed to return their unpoened unused mounts ( i expected a restock fee as it was not any issue on their end).
Once they found out i didnt want an exchange instead a refund they went radio silent. i emailed for 10 days and called as well. no reply... i finally posted on one of their facebook/insta posts about them ghosting me and i needed the RMA. they immediately emailed me saying only "your address is the RMA". no sorry for the delay, nothing.. that was literally all the email said.

a month later still no refund.. again called and emailed for a week and nothing.. again went to social media and replied on one of their posts about them having the part for over a month and no refund. .. got a short email asking for my tracking number they claimed they never got it.
after i sent the tracking, showing proof of receipt ( i sent signature required because i felt uneasy at that point) I got
no email, just a notice of refund from sales department. no explanation, no apology, nothing..

i sent a follow up expressing my disappointment and frustration with their lack of response. i run a business and appreciate feedback and do everything i can for customer's to have a positive experience. i was giving them one last shot to save a future customer. i wsnt asking for anything free, i wasn't mean or spiteful..

their response was " well your refund was processed, good day".

i am an enthusiast and own 4 porsches, 9 work trucks (own a mid sized landscape company), my son has a porsche and 4 BMW, a 325 convertable e36, 2 335i and a 535i wagon. I have spent over $14K so far this year on parts restoring/ modifying our cars.. , and my son about the same.

these guys just lost my business forever..

products may be good but customer service was terrible..

i ended up with prothane motor mounts and the quality is night and day difference for only slightly more money..

[Panici]

Revshift 80A Polyurethane Differential, Subframe, Trailing Arm Bushings on my E30.

More NVH then stock rubber, but do a much better job of controlling suspension deflection.
Helped to reduce my wheel hop to manageable levels.

I personally wouldn't run them on a near-stock street vehicle due to the NVH compromise, but that's just my preference.

[Northern]

I had their subframe + RTAB in 95a on my old iX and they were great.
Have their 80a RTABs in my car now and they have been great.
The car already has solid diff/subframe mounts so they didn't really add to NVH other than the occasional squeak entering a driveway or jacking the car.

I'd stay away from the guibos, and the earlier style of engine mounts.
I haven't heard anyone ripping the current mounts but their current 24v mounts are very offset to the passenger side.
I'm not sure the reason for this, but probably not helpful for RHD cars or Turbo cars.

As far as I know, Revshift is a small operation with a handful of employees and only makes products for a handful of platforms.
The owner has some background in Polymer design engineering, and they run a complementary business that (I think) funds a lot of revshift's R&D and tooling.
I don't think they have staff dedicated to packaging/shipping or sales, so communication, shipping time, returns are a common complaint.
Also they have sales on almost all holidays, and that's when I've always bought their stuff, so I think this contributes to the shipping complaints.