« Last post by Joe Babooze on August 15, 2018, 04:51:56 AM »
Nate, what you have is non Premium GT with the track package. Torsen diff, 3.73 rear gear ratio, which is different than the standard traction lock diff which uses clutch packs. In a nut shell, torsens are better for tracking the car rather than drag racing. The setup is a little like the Boss 302, but without the full Boss springs and shock valving. Since it is a base GT, interior is cloth based rather than leather and the instrument panel lacks the center LCD screen with the track apps. Very cool find.
Now on the exhaust. I'm kind of the old school deep rumble rather than loud and raspy. These engines have a raspy character by nature. One thing to notice on the stock system is the inclusion of in line resonators before the rear axle. This tames the rasp a bit and if they were removed, that's part of the problem. The cats removal is the second part. A lot of the axle back exhausts are designed for used with cats and resonators in place. Removing both and using an aggressive muffler and it's gonna sound like a former Honda owner missing his VTEC---complete ass.
Check out the H pipe section underneath....it might be an off road x pipe. My suggestion if you want an old school type sound, get an h pipe setup and put cats back on. If the mid pipe section has no resonator, Borla, Magnaflow, and others sell shorty resonators that look like glass packs. Weld those in. Lastly, if it has the quad tip setup from the GT500, go to GT500 (Ford Performance) quad tip versions. They have more baffling to cut down the noise. All the kids are using Corsa Extremes which in my opinion are too loud. Stay away from Roush mufflers too. I have Borla S type axle backs on mine with the stock exhaust system which to me sounds nice as they were designed for the stock setup. The mindset today is loud and obnoxious, straight piped with no thought as to tone character.
Anyway hope our suggestions help, hope to check out the ride maybe at the next cruise night. Congratulations and hope you have fun with it. The Coyote S197s are cool cars and have a lot of aftermarket support. You've made a great choice.