Hey fellas you may have seen a few of my post about taking my spt exhaust off because it was to drone sounding for me and making my sun roof vibrate.

Well I miss the rumble sound now. My thoughts were if It made an increase in power I would put it back on, but from what I have read I need to add a downpipe in order to increase power. So what do you guys suggest. Would adding a downpipe make it louder because I don't want that. Is there another brand exhaust that has less drone sound? Any thoughts on this would be greatly appreciated.

 

adding a resonator before the muffler itself would reduce the sound and drone,normally a free flowing downpipe will increase the sound.

 

+1 on the resonator.
wrap your pipe(s), all of them!! then seal them off with hi-temp silicone.

it will make things nice and quiet until you open it up.

 

i have 1 on my 09 forester too... drone like hell... will dynamat in the trunk helps?

 

I decided to put it back on. It doesn't seem as loud now maybe I'm getting used to it. I have learned how to drive on the freeway without making it sound so loud.

Almost at 1000 miles I sure when I hit 6 thousand rpms it will sound good....