Best replacement cat?

[ssms5411]

Re: Best replacement cat?

You can buy them at Autozone or Oreilly for the Felpro header gaskets, for the cat you can buy a 3" cat on ebay or any place that sells 3" cats. Catco I think is on ebay. Also if you want a great seal, buy a can of copper spray while your at the parts store and spray the Felpros down with the copper spray and you'll get a better seal after you install your headers.

[nwilson44]

Re: Best replacement cat?

You can buy them at Autozone or Oreilly for the Felpro header gaskets, for the cat you can buy a 3" cat on ebay or any place that sells 3" cats. Catco I think is on ebay. Also if you want a great seal, buy a can of copper spray while your at the parts store and spray the Felpros down with the copper spray and you'll get a better seal after you install your headers.

Would you recommend changing them myself or having it professionally done on a 2001 3800? and Just a 3 inch cat will fit it. nothing special?

[ssms5411]

Re: Best replacement cat?

Would you recommend changing them myself or having it professionally done on a 2001 3800? and Just a 3 inch cat will fit it. nothing special?

If you have the time you could do it yourself pretty straight forward job,any 3" cat will do , you'll need to have the exhaust done to 3" after the cat so you'll need a 3" S pipe and 3" over the axle and a 3" muffler and tips. If your doing it all at one time I would have the exhaust shop just do it all at once will be cheaper down the road but you could do the headers yourself then take it to the exhaust shop to have the whole exhaust done will be cheaper.

[fbodyrs96]

Re: Best replacement cat?

just like oem Victor Reinz/Exhaust Manifold Gasket

http://www.autozone.com/autozone/par..._607533_19698_

[nwilson44]

Re: Best replacement cat?

are the pacesetter donut gaskets good?

[ssms5411]

Re: Best replacement cat?

are the pacesetter donut gaskets good?

If it was me I would have the 2 bolt flanges cut off and have 3 bolt flanges welded on. Or do what I did have T-bolt flanges welded on that way theres no gaskets.

[nwilson44]

Re: Best replacement cat?

Which is the best universal 3-inch cat?

http://www.summitracing.com/search/p...er-in/3-000-in


And thats a good idea to weld it

[ssms5411]

Re: Best replacement cat?

Any Cat will do, and I would have it all welded except for the Y pipe have flanges on the header spots and the 3" opening in case you need to drop the pan or engine.

[techsan23]

Re: Best replacement cat?

http://m.summitracing.com/parts/mpe-54959

This is the one I picked up to run with my pacesetters.

[nwilson44]

Re: Best replacement cat?

http://m.summitracing.com/parts/mpe-54959

This is the one I picked up to run with my pacesetters.

No check engine light with this one?

[techsan23]

Re: Best replacement cat?

I never had a DTC come on for it.

[nwilson44]

Re: Best replacement cat?

Sweet sounds good. I am going to go that route then. I can do the pacesetters and universal 3 inch cat cheaper than it would cost to buy an OEM y-pipe with a cat.

[vanbibber]

Re: Best replacement cat?

i probably have a 3in 3out carsound cat around here somewhere, new in box and all. i dont need it now so id sell it for 40-50 bucks just to get it out of the parts i dont need now pile.

[nwilson44]

Re: Best replacement cat?

i probably have a 3in 3out carsound cat around here somewhere, new in box and all. i dont need it now so id sell it for 40-50 bucks just to get it out of the parts i dont need now pile.

I'm not familiar with the brand. I just want something that keeps the check engine light off for a long while lol it bothers me

[vanbibber]

Re: Best replacement cat?

I'm not familiar with the brand. I just want something that keeps the check engine light off for a long while lol it bothers me

its made by magnaflow if i remember right. its OEM style just higher flowing.