OK, I just installed new M5230SGT FRPP axlebacks on my GT500. Is there a break-in or burn-in period for any FRPP axlebacks? Has anybody noticed any sound changes or noticed that they have gotten louder over time?


Yugi

 

i don't know aout the 5230SGT's, but my
5230GTA's seemed to sound better, 4-6
weeks after installing

 

I have the GT's (Stingers) and they did seem to get a bit louder, most noteably at startup. I've had them on now for more than 20,000 miles. It's hard to tell over a long period of time since you hear it every time you start the car.

 

I know it's not the FRPP's that you're speaking of... but my Corsa's got noticeably louder after a few weeks of driving.

 

all mufflers have to break in b/c there is oil on the metal so once that all burns off it will sounds a little louder