exhaust sound
 

I was doing some research and found out that there is often a problem with 1999 proteges exhaust's making a resonance sound from 2300 -2500 rpm, i think this is what my car (auto.) is doing, (i thought i might have had an exhaust leak). The site i found suggests adding a damper weight and a stiffner? i was wondering if anyone had any info on this subject thanks!

check the TSB's there is a fix for this that the dealer will offer...i beleive there is a list of all TSB's on Edwin Mann's Protege FAQ

does anyone know what they will do exactly and also is this something i will have to pay for (i assume)?

will be free if it can be reproduced by the dealer