They make there own and are not for sale off the shelf. I would call DSE direct maybe they can make you a one off.
We ended up making our own similar to what Mark Stielow did but mounted it off the subframe where he did his off the body and reinforced the metal. This required us to raise the floor panels to get optimal clearance and tucking.
Check out this thread:
https://lateral-g.net/forums/show....php4?p=617961
We had to cut a little farther forward into the tunnel to get the best clearance for the bellhousing but this wasn't required.
We're using half inch body mounts.
Haven't fitted the haymaker yet but it shouldn't interfere with the tunnel. The kicker panels with speakers may be a different story. Once I mount I can try and take measurements.
Sent from my iPhone using Tapatalk