I would like to see header results! Are they really worth the $? Ford put some good engineering into the stock units. I don't care if the car is stock or with tune and cai. It seems the only comparisons I read when long tubes are installed are accompanied by a tune and cai compared to stock.
This ^^^
Also compare different types of exhaust, lets say full header to axle back system, to say only a catback system.
Before and after with and removed stock resonators to see how much they are restricting the exhaust...
muffler deletes to a muffler system comparison
X vs H pipe
I would say different combinations of exhaust is the most important comparisons that you guys can make on these cars...
Nitrous times please...different combos:rockon: