‘04 XC 70 - Aftermarket CAT fit issues

[E Showell]

So, Ruby Red developed a CAT leak at one of the support stay weld points. The Volvo Cat is NLS, not that I would have ordered one. I got a DEC from Partsgeek, which is Cat and flex pipes and is alleged to be a direct fit replacement. It was not a good fit. Local mechanic spent time heating the flex pipe and bending as well as enlarging the bolt holes on the flange to make it fit. I am betting the Magnaflow ($250 more expensive even after a coupon code) is the better option.

[jonesg]

So, Ruby Red developed a CAT leak at one of the support stay weld points. The Volvo Cat is NLS, not that I would have ordered one. I got a DEC from Partsgeek, which is Cat and flex pipes and is alleged to be a direct fit replacement. It was not a good fit. Local mechanic spent time heating the flex pipe and bending as well as enlarging the bolt holes on the flange to make it fit. I am betting the Magnaflow ($250 more expensive even after a coupon code) is the better option.

I suspect he didn't build a wooden jig before cutting the old one.
mine is leaking at the support stays welds too, i'll be welding them up next spring.

[abscate]

You can also grind off the ill- fitting flanges , and put bear river converter flanges on and weld or band clamp them with putty

[br0dy519]

Same car. Same leak here. Please post the model/brand of the cat you selected so I don’t make the same mistake. Looking at some of the pictures, I think theres a cataloguing issue as some of the aftermarket cats don’t look anything close to the original with supports, and claim to basically fit any model Volvo 01-07.

I was eyeing this one, it looks to be correct, and a great price. https://www.ebay.ca/itm/114076540656

[E Showell]

I used the DEC brand cat and flex pipe combo listed on Partsgeek for about $328. You can check the website for the model #.