Your description leads me to believe the problem is not your muffler. Bosal makes excellent mufflers and I would not replace it with a bolt on. Welded joints will last longer, are stronger, and seal better. I think your car uses a dual muffler set-up. Usually when a muffler starts to go, the sound will become gradually louder with time. It never hurts to have the car diagnosed by a mechanic. It may be something in the drivetrain or brake system. But, I would need more info. Here are a few quick and easy things you can do:
1) Check your CV boots for tears.
2) Worn wheel bearings also make noise, but usually noise is more constant. You can jack up one wheel at a time and turn the wheel listening for noise and feeling resistance.
3) Check belt tension.
4) Check all fluid levels.
1) Check your CV boots for tears.
2) Worn wheel bearings also make noise, but usually noise is more constant. You can jack up one wheel at a time and turn the wheel listening for noise and feeling resistance.
3) Check belt tension.
4) Check all fluid levels.
