Resonator

kis86 · #1 11-08-2008, 09:33 AM

I have an awful sound coming from my exhaust at low low speeds, and was told it was the resonator. Probably a stupid question, but what is this, how much is one, and can i just get it taken out without a huge change in exhaust loudness?
Thanks!

Manarius · #2 11-08-2008, 04:35 PM

Quote:

Originally Posted by kis86

I have an awful sound coming from my exhaust at low low speeds, and was told it was the resonator. Probably a stupid question, but what is this, how much is one, and can i just get it taken out without a huge change in exhaust loudness?
Thanks!

Get it cut out. Little change in loudness. Just make sure it's welded up correctly.

Blacky · #3 11-08-2008, 04:42 PM

The resonator is similar to a muffler. Look under the car from just in front of the rear wheels. Follow the exhaust pipe forward from the muffler and the next big bulge is the resonator. Mine was removed and a piece of pipe welded in with very little change in sound, just a tiny bit raspier.
It's around $300.00 from Subaru but aftermarket will work.

kis86 · #4 11-08-2008, 04:49 PM

I think I'll try just having it taken out. Thanks for the help!

svxistentialist · #5 11-08-2008, 05:23 PM

The resonator is there for a reason. It is positioned at a nodal point in the exhaust stream. It affects the velocity at which the engine scavenges burnt gases, particularly at low revs.

If you replace it with a straight pipe your car will produce lower torque at low revs, and we all know the SVX prefers to change up gears quick and runs at low revs most of the time.

My advice is to replace it with a cheaper aftermarket resonator. The Subaru one is way too expensive, particularly as we know they all eventually rattle, so it is not exactly Rolls Royce build.

My 2c

Joe

Manarius · #6 11-08-2008, 05:34 PM

Quote:

Originally Posted by svxistentialist

The resonator is there for a reason. It is positioned at a nodal point in the exhaust stream. It affects the velocity at which the engine scavenges burnt gases, particularly at low revs.

If you replace it with a straight pipe your car will produce lower torque at low revs, and we all know the SVX prefers to change up gears quick and runs at low revs most of the time.

My advice is to replace it with a cheaper aftermarket resonator. The Subaru one is way too expensive, particularly as we know they all eventually rattle, so it is not exactly Rolls Royce build.

My 2c

Joe

I have the resonator delete and I can't really feel any lower torque than any other SVX I've ridden in.

kis86 · #7 11-08-2008, 05:44 PM

If I replace it with an after-market one, any recommendations?

svxistentialist · #8 11-08-2008, 06:01 PM

Quote:

Originally Posted by Manarius

I have the resonator delete and I can't really feel any lower torque than any other SVX I've ridden in.

Jason, I did the straight pipe on my claret, and I never liked the sound of the exhaust afterwards. Blacky mentioned raspier, but mine had a blare that was hard to like.

The change in torque will be minimal and not easy to notice by seat of the pants. It will only have an effect at low [1500-2000 rpm] revs. Higher than this horsepower output increases and the lack of torque can't be noticed.

It's likely the reduction of low rpm torque will only show as higher consumption around town, not on the open road.

Jegs would be where I would look for a replacement.

Joe