Audi UR Quattro Rally Build

3 minute(s) of a 357 minute read

The car took a big leap forward recently and, as a result, we are now exhausted.

We asked our friend Scott Banes if he’d like to build us an exhaust and we were honored that he said yes. Scott is a local rallycross and rally competitor who has owned about a gazillion Subarus and we’ve always been impressed with the work he’s done on them. We thought it would be good for him to glue metal together on something else for a change. Plus, his shop is only about 30 minutes from ours so it was an easy tow. He only had the car for the weekend too which was great.

Beforehand we talked bout trying to mimic the Group B cars exhaust as much as practical without going nuts. This meant a 3” stainless with one back box but we also wanted to try and incorporate a catalytic converter. After showing Scott all the pictures we had he liked the idea of keeping the down pipe and wastegate dump separate till under the car and thought he could even incorporate the removable plate some of the works cars had and the muffler support bracket, like these:

We left him too it.

It was a tight squeeze but he nailed it. The works cars had an enlarged transmission tunnel so their exhaust could go over the axle instead of under it. We gave Scott permission to BFH a bit more room for the cat if he needed to be we didn’t want to have to refabricate the tunnel. As you can see he managed to get both the cat and the extra pipe in, though we have no idea what we’ll do with that hole in the dump pipe.

He would have pulled off the muffler bracket to but didn’t have any suitable rubber bushings to hand so rigged something up for now. We’ll come up with something later, hopefully.

We were very pleased with the attention to detail Scott took with the way the exhaust exits the back of the car. Both the location and angle of the tip are perfect.

Now, if we could just get him to help with the rest of the car!