OS Giken or Drexler

[paulina]

Anyone has experience with OS Giken diff. Does it perform similarly as a Drexler diff or Drexler is a better unit.

[funk323]

I am also interested to know, I used OS Giken diffs and clutch in my STI and they were considered the best option for that platform.

[Track/S]

I would mount Drexler without much thought, bmw sells it already installed and you don't have to worry about the installation.

[paulina]

Originally Posted by Track/S

I would mount Drexler without much thought, bmw sells it already installed and you don't have to worry about the installation.

You mean the m2csr diff?

[Track/S]

Originally Posted by paulina

You mean the m2csr diff?

Yes M2csr or M4 GT4 diff.
I don't know why the GT4 one costs 1000€ more, I guess it will have a more aggressive configuration.

I have csr mounted, and I am very happy, the best mod.

[paulina]

Originally Posted by Track/S

Yes M2csr or M4 GT4 diff.
I don't know why the GT4 one costs 1000€ more, I guess it will have a more aggressive configuration.

I have csr mounted, and I am very happy, the best mod.

what difference did you feel with M2csr diff fitted

[Track/S]

Originally Posted by paulina

what difference did you feel with M2csr diff fitted

Before I was not in favor of going sideways in roundabouts, now I do them all sideways

Spectacular corner exit, lots of traction.

[ninekrpm]

I installed a drexler diff (via Diffsonline)...felt a good difference/improvement in mid-corner to exit...and more predictable (no delay).

[Track/S]

Originally Posted by ninekrpm

I installed a drexler diff (via Diffsonline)...felt a good difference/improvement in mid-corner to exit...and more predictable (no delay).

Did you pay this price? For this price you can buy 2 csr diffs.

[ninekrpm]

Yes, but in $’s.

I don’t know details, but the CSR is different. Check with Diffsonline, BW, KMP, or Drexler directly.

[Track/S]

if i remember correctly the csr setup is 50/40, so the only difference is the price.

[PJDK]

Originally Posted by Track/S

if i remember correctly the csr setup is 50/40, so the only difference is the price.

Is the CSR diff plug n play on the F8x besides coding and stuff. Or do you need different axlzs aswell? Thanks.

[Track/S]

Originally Posted by PJDK

Is the CSR diff plug n play on the F8x besides coding and stuff. Or do you need different axlzs aswell? Thanks.

You need diff + left axis on right side.

[PJDK]

Originally Posted by Track/S

You need diff + left axis on right side.

Left axis is partnr 33212284615, correct?

[Track/S]

Originally Posted by PJDK

Left axis is partnr 33212284615, correct?

Yes

[PJDK]

Originally Posted by Track/S

Yes

Thanks. All ordered. Looking forward to it

[Track/S]

Originally Posted by PJDK

Thanks. All ordered. Looking forward to it

Is for street/track use? Or only track?

[M3SQRD]

Definitely run a Drexler 6-clutch diff if it’s for track use. If it’s primarily for street use then run a Quaife or Wavetec helical diff mainly due to better wear vs multi-clutch diff, instant torque transfer and less heat generation. Rebuilt M Var isn’t a bad option for street use only but Quaife or Wavetrac will have better lockup and torque transfer.

[PJDK]

Originally Posted by Track/S

Is for street/track use? Or only track?

85% track use.

Any recommendations on maintenance of the M2CSR Diff?

[Track/S]

Originally Posted by PJDK

85% track use.

Any recommendations on maintenance of the M2CSR Diff?

You should put the m2csr cooling system.

[PJDK]

Originally Posted by Track/S

You should put the m2csr cooling system.

How necessary is this?

[Track/S]

Originally Posted by PJDK

How necessary is this?

For 85% on track is necessary.