2004 XC-70, aftermarket resonator replacement?

Herb Goltz · Post by **Herb Goltz** » 10 Sep 2020, 13:56

Hi All:

My newly-acquired 2004 XC-70's resonator (the front muffler) has blown out. Has anyone found a good aftermarket one to have welded in? The car only has 134k km, so the pipes are in great shape, so I would rather go this route than a cat-back, which only seems to last 2-3 years on salty Canadian roads. I have a good muffler shop that usually does welding for me.

That said, I suspect the rear muffler won't be too far behind. Any tips on what to use there? I have had a bit of sticker shock looking at aftermarket direct fit systems...

Thanks!

Post by **SuperHerman** » 10 Sep 2020, 16:29

If I recall correctly I bought a Walker unit from Rockauto, just looked and it is under $50. Worked just fine for the 30k or so miles until I sold the car. Mounting was not an issue.

Post by **Blacklab467** » 10 Sep 2020, 17:49

I put a Walker on mine from the Cat to the muffler 5 years ago, it was a near perfect fit and still in great shape on salty roads, I used a OEM muffler from the boneyard because I found a perfect one and the aftermarket muffler was over $300.

Post by **br0dy519** » 10 Sep 2020, 17:50

My mechanic offered to weld in a piece of straight pipe for $75 CAD all in. I think JRL calls it his resonator mod or something, he’s very proud about it

Post by **- Pete -** » 14 Sep 2020, 20:39

With a section of pipe in there vs a resonator it really doesn’t change the loudness very much at all. These I5’s sound very nice with a little relief applied to the original exhaust system.

You’ll have a little deeper tone and a slight “pop” on decel, other than that, not much change at all.

Herb Goltz · Post by **Herb Goltz** » 15 Sep 2020, 07:40

Thanks all! I went with a welded-in aftermarket resonator. My exhaust guy likes to preserve the original pipes as long as possible, as the replacement cat-back systems really don't last on salty Canadian roads...