Wanted to share something I’ve been working on for the S4/S5 guys, namely a transmission cooler kit for the DL501 in addition to brackets to use the RMR cross bar with aftermarket heat exchangers. I’ve been making the trans cooler kit for RS5 owners for a few years now and finally got up off my arse and produced one for the B8 S4 and S5.
A friend let me borrow his S5 for a bit (I gave him my RS5) so I could flush out the kit and take measurements.
One of the big obstacles is the fitting of aftermarket HX’s with the RMR cross bar, which already fits the S4/S5 and is in wide usage. It sits forward a good five inches vs. the OE cross bar. This allows for the trans cooler to fit with larger aftermarket heat exchangers. So I created new brackets which are actually being test fit this weekend. Having them laser cut as well.
I mount everything to the back of the bar with rivet nuts. This makes a super clean installation. For the S4/S5 HX mounting, I’m going to leave that up to the owner as there are just too many different HX kits and sizes. You’ll be able to position the brackets, mark, drill the holes and install the rivet nuts. Takes like 10 minutes and is super easy. You can get a rivet nut tool here: https://amzn.to/324qiHO I use that exact one and I’d recommend going with an M8 rivet nut and bolt.