Hey Guys,

I have a 2011 IS 350 with an F Sport exhaust on it. Something i noticed recently was that there is alot more black soot on the passenger side exhaust tip. Is that normal? I also remembered in the winter time i would see the same exhaust pipe having alot more exhaust then on the driver side.

Anyone else experience this? Thanks!

 

Since the 2 gen ISX50 has a 2 into one into 2 exhaust system, and since the F-Sport exhaust is an axel back system, it only means one side (after the Y split) flows a little better than the other. Means absolutely nothing.

Lou

 

It's normal and happens to everyone with the f-sport none or with logo on the 2IS. passenger side have less packing than the driver side box muffler. so creating more flow from the right.

 

Normal. Had mine for a year now. I carry some napkins and wipe it every now and then when I walk away from my car.

 

As stated above, it's normal. If you look through the passenger "muffler" it's just a straight pipe.

 

thanks everyone! i appreciate all the responses! I feel much better now!!!

 

If you detail the car get some good quality wax to put on the exhaust tips. This will help remove the carbon buildup much easier during weekly washes.