Exhaust Modifications:
The TTI full 2.5" exhaust is a great system, however the smallish (14" long) Dynomax Super Turbo mufflers p/n 17733 don't do much muffling and there is also an annoying drone when highway cruising. I was pretty sure my wife would not survive the Route 66 trip to California next month!!! After some research, I decided to install a set of resonators. I picked Flowmaster p/n 15150S. It is a full 2.5" straight through design (ie no restriction) with a sealed resonator tube along side the main pipe. The drivers side is an easy fit, but the passenger side tailpipe fits very close to the gas tank and requires some rework of the tailpipe.
Just got the car back from the shop and there is an absolutely amazing sound difference. It is significantlyquieter at all speeds. The drone is completely gone. If anyone has a similar drone problem, these resonators are highly recommended.
Jim