differences in ET/MPH full exhaust vs open exhaust
i have a feeling my exhaust is holding me back. i have a 2.5 inch system with an x pipe, ultraflows with full tails out the back. it is hand bent. i'm looking for a close to optimal exhaust setup and i am thinking of going to 3 inch with an x pipe dumped right before the rear axle. i havent run with open headers because after unbolting the exhaust there is no where for the exhaust to go as it rides up against my doughnut style gasket. if i push it down it scrapes up the gasket and the gasket is stuck to the collectors. i'd rather not break them.
i am trying to get some real world information on your cars with full exhaust vs open headers or exhaust that is real short or dumped. please give me your before and after ET/MPH.
where can i get a 3 inch system with an x pipe that dumps right before the rear axle as a kit?