anyone try the magnaflow y pipe. supposed to have hiflow cats.
i assume the stock system has two precats and the main one.
i know they used to say ford cats on the mustangs were one of the
best systems out there. you didnt gain much w/aftermarket stuff unless highly
modified. course they also had true duals.
I used to have the dynomax system on my '94 4.6. Take out the resonator and the cats and it will give you a noticable gain (I gutted the exhaust before I put the dynomax system on, so I got a good before and after feel) but IMO the turbo style mufflers the system comes with are just way to quiet for my taste.
'94 Cougar 5-speed Aka:Tigger
"Ambitious but rubbish"