These position the motor a bit farther back.
The firewall will need to have a small spot hammered for Starter Clearance.
And in some cases, a RB25 Transmission will touch the top of the transmission tunnel.
Here is a basic diagram of where the Starter / Bell Housing may touch.
The Oil Pan sits roughly level with the Subframe. A few customers have stated they had oil pan clearance with other mounts, but did not have any issues with these.
The Hood has plenty of clearance, even if you are using Nismo Mounts which are slightly taller than stock.
We also Offer Driveshafts for the conversion - PM Me for Details !
Please let me know if you have any other questions.
Thanks,
Robert