A body Exhaust manifolds

Yeah, they're not a straight bolt in by any means but it only took an afternoon to get them fitted and they're way cheaper than any other options. I'm sure they don't flow anything like TTis or Doug's but they're supposed to be comparable with 340s and I'd guess not much worse than spitfires. Mind you it doesn't make much difference with the stock 318 that's in there at the moment...