Custom exhaust any interest?

I like the idea of creating a new product that doesn't exist.

I'd like to see a 3.5" exhaust

A 3.5 to H or X pipe to 3"

An exhaust for mini tubbed cars

A stainless system

a system with electric cutouts
Good ideas...

Would mini tubbed system fit non mini tubbed cars also I wonder?

I think the big thing wiia lot of this will be sticker shock. Stainless is expensive, so are cutouts.

If I did a cutout it would be configured differently from all the cutouts I've seen. The straight through path would be the cutout opening and the muffler side would split to the side.