rear subframe bushes

[bigdek]

are ecp , gsf ones any good or do i go to the dealer.

what do thay roughly cost

[tomtomiS]

u better off gettin powerflex bushes maybe?

[ed325i]

Yes powerflex 20% off here >> http://www.e30zone.net/modules.php?name ... ic&t=15274

[Splondike]

I think if you are not going the poly route, get the dealer ones....no more expensive and better if I remember correctly

[bigdek]

dealer it is.

[stuartgallafant]

basically, gsf and ecp buy all the items that BMW dont approve on there screening test. so if bmw dont approve it, i wouldnt want it on my car...

how you gonna do 'em? let me know if you want some help

[Cotty]

I think if you are not going the poly route, get the dealer ones....no more expensive and better if I remember correctly

I think Sal said the poly ones were not great

[Chris-W]

basically, gsf and ecp buy all the items that BMW dont approve on there screening test. so if bmw dont approve it, i wouldnt want it on my car...

So BMW look at all the parts stock in the world, whilst GSF and ECP patiently wait at the factory gates to buy any surplus morsels they reject?

[stuartgallafant]

yes, thats exactly how it works....

BMW parts are made by specific companies and contractors. For BMW to deem a part good enough to sold by them and go on one of the spectacular vehicles, they screen and approve the parts. Those parts that are approved, are then swept up by companies such as GSF and ECP at an absolute pittance of a price, so they can be stocked on their shelves. Not all of their stock is this of course...

anyway, its not like im the only person on here that knows this. In fact, the only reason i know this is because i learnt it from a few zoners who were talking about it on here once...

[ste]

I think Sal said the poly ones were not great

Strange when he fitted them to his car....

Poly ones are good, they possibly transmit more dif noise but only really if your dif is noisy in the first place. Lets face it, e30s aren't the last word in refinement anyway.

Another plus is you can fit them much easier than rubber bushes. You can cut the old ones out and press the poly ones in by hand.

[bimmaman]

basically, gsf and ecp buy all the items that BMW dont approve on there screening test. so if bmw dont approve it, i wouldnt want it on my car...

I bought a viscous clutch from ECP the other day, and it was a sachs clutch, and today I bought some replacement rear shocks which are Boge... I thought those were OE parts...???

[e30bemer]

yes, thats exactly how it works....

BMW parts are made by specific companies and contractors. For BMW to deem a part good enough to sold by them and go on one of the spectacular vehicles, they screen and approve the parts. Those parts that are approved, are then swept up by companies such as GSF and ECP at an absolute pittance of a price, so they can be stocked on their shelves. Not all of their stock is this of course...

anyway, its not like im the only person on here that knows this. In fact, the only reason i know this is because i learnt it from a few zoners who were talking about it on here once...

same here!

the amount of newsletters and aftersales mags i get floating around, all the parts go through rigerous testing before being deemed ok for BMW use, they did one recnetly on filters, will try and dig out the article!

[Chris-W]

BMW parts are made by specific companies and contractors. For BMW to deem a part good enough to sold by them and go on one of the spectacular vehicles, they screen and approve the parts. Those parts that are approved, are then swept up by companies such as GSF and ECP at an absolute pittance of a price, so they can be stocked on their shelves. Not all of their stock is this of course...

Are you talking about batch rejection from an individual plant or manufacturer, where batches which fail BMW QA might be jobbed out to independent motor factors? Or certain manufacturers having approved status?

[stuartgallafant]

BMW contract people to make parts for there franchise fealerships to stock and sell. When these parts have been made, by batch, they go on to be tested. if there is a specific 'pass rate' say for example, the batch consists of 1000 items, 100 items are tested and out of that, 70 of them items are good, the batch is dispatched. any less, and the batch is expelled

this is only an example, but this is just a basic idea of what happens. if you think about, ECP and GSF might end up with 500 good ones that would have passed, and BMW might have taken a batch where most of them will fail. Thats why on most parts you buy direct from a BMW dealership, you get a 2 year fitted part warranty

[Cotty]

I think Sal said the poly ones were not great

Strange when he fitted them to his car....

Poly ones are good, they possibly transmit more dif noise but only really if your dif is noisy in the first place. Lets face it, e30s aren't the last word in refinement anyway.

Another plus is you can fit them much easier than rubber bushes. You can cut the old ones out and press the poly ones in by hand.

I cant find the quote/thread but he said something like they transmit more noise into the cabin especially if you do a lot of motorway driving.

I dont want to put words into his mouth its just what I remember from the thread that I cant find.