The reason I mentioned exhaust is because it would be a shame to choke up such a strong runner. After discussions with some of the PSMCDR 6 pack front runners, I went with the tried and true 2.5" mandrel bent TTI with Dynomax ultraflows and couldn't be happier.
I'd bet that my exhaust, with HP manifolds, flows better than the stock 2.25" compression bent pipes with baffle type stock mufflers and headers. A good muffler shop can probably do a decent job on the 2.5" pipes, but I'd strongly recommend the Ultraflows.
