If you cannot send us your differential.
If your Differential is still on the car and you cannot remove them and send it to us prior, you can purchase this deposit, which will be returned after inspection when you send us your non-damaged differential pumpkin.
This is a deposit only for the Wavetrac BMW E82 E90 Limited Slip Differential With Welded Ring Gears 215K, r=3.08 (135i & 335i). It does not contain any LSD upgrade.
Please Note: You will also need to return the original box that the LSD came with for a full deposit refund.
Time Frame Limit
In order to get your deposit refunded, your undamaged stock differential needs to be returned within 28 days from when you received your upgraded LSD.