Subaru Outback Forums banner

Rust holes in my muffler?

1244 1
Alright so 2000 Sub OB base model, was changing the tire today when I noticed that on the top of the muffler there are some small rust holes, a row of about 7 or 8 of them, about a shirt button in size (each), and some rusted through, some just surface...

1. Is this a problem?

2. If yes, what should I do about it?

3. If no, what should I do about it?

Thanks lads and lasses. :)
1 - 2 of 2 Posts

· Premium Member
01 VDC, 05 R Sedan, 06 BAJA EJ257
19,150 Posts
The muffler catches and holds some of the water from the CATs and will deteriorate the metal over time. Condensation builds up with temperature changes. Rocks chipping the coating of the muffler allows for rust.

Mufflers also have a weep hole designed to let the water drip out. This hole will tend to get rusty. The other holes, couldn't say for sure. Unless you have a change in the muffler tone or its allowing exhaust gases to build under the car instead of getting them past the bumper, I wouldn't worry on it.

As for your mod suggestions, get with Ed at Xtreme Racing Tuning on remapping and improving the stock fuel map. If you want more kick, turbo or supercharge it with remapping. Suspension is easy, Whiteline has distributors all over Sydney.

A good combination will make the coastal roads a lot more fun.
1 - 2 of 2 Posts
This is an older thread, you may not receive a response, and could be reviving an old thread. Please consider creating a new thread.