Here is my version of "devil horns" that I made for my newest SLK32. I expect that the space behind the SRT6 grill is similar. This set up was designed around using SL55 air intake tubes and retaining factory grill.

I added an ambient air temp sensor to the passenger side scoop. The power-steering cooling line was reshaped a little to pass behind the scoops.

The last pic shows it all in place along with my monster frozenboost HE

Cheers,
Chris