hey guys i just got given a 1986 subaru sedan, 2wd. ive already gone through and replaed the airfilter, done an oil change with some lucas, cleaned spark plugs, new cap and rotor. but any ways, i was wondering has anybody out therer done a dual exhaust, just hack it right before the cat and run two pipes out where the stock stuff ran, im going to use 1.5 pipe, no mufflers, just some big tips, im just curious if itll gain any power, and how loud itll be thanks