Twin exhaust modification for an RV8 If you know of the whereabouts of the other two RV8 twin exhaust systems do get in touch with Peter Cutting. Email Posted: 210506 Peter Cutting says "this is a Clive Wheatley exhaust modification with a specially moulded valance. I have one on one of my RV8s and it is a real delight. Despite all the investment, Clive only sold four of these modifications. He has one and I have one, and there are two at large. I'd love to know where the other two modifications are as Clive doesn't know and it would actually form quite an exclusive club -- "the RV8 Twin Exhaust Club"! Can you help?" See a full size photo