bivenspack
Sat, June 30th, 2012, 05:28 PM
Thinking about replacing the stock exhaust. If I go with a freer flowing dual exhaust do I need to get my Gryphon retuned? I've got an '05 Expy EB 5.4L. Everything else is stock except for Gott's mod and K&N air filter.
cleatus12r
Sat, June 30th, 2012, 05:59 PM
Thinking about replacing the stock exhaust. If I go with a freer flowing dual exhaust do I need to get my Gryphon retuned?
Nope.
By the way, I have every doubt in the world that you will actually find a "freer flowing" dual exhaust (especially a "true-dual") than an appropriately-sized single.