Eliminating Cat in stock exhaust

[JBakerFX4]

What do you guys do if your cat happens to run off on a bone stock exhaust? You guys buying a kit, or home rigging it? Same question goes for the mufflerl. Looked at a D-fit kit from Magnaflow and that's a JOKE. Hundreds of dollars for a tip and straight through muffler.

[Heat]

There are plenty of straight pipe kits out there. Yes, they might cost a couple of bucks but are usually made of top grade materials. You can also have Midas or one of the other "muffler" shops do a straight pipe setup for you. They will have all the materials as well as the pipe benders and so on to do an excellent job. Make no mistake, that will cost you a couple of bucks too....

Ken....

[uberlinuxgeek]

Myself in order to save a few $ and get a sound I liked I installed AFE 49-40028 / 2003+ 4 Inch 409 Stainless Steel CAT Test Pipe (AFE 49-40028) 50$, Myself. I then had an exaust shop remove my muffler and add pipe in its place.
Total cost 110$ tax and all. Sounds great and lowered my EGT's. The realy problem is the size of the pipe no one in my town had 3.5" or larger pipe tools. SO now my only choice down the road would be to go with a 4" kit. But not sure I will ever do it.

[JBakerFX4]

For cost reasons, and not wanting to lose low end torque (city driving) I'm probly just going to do a Test pipe, but I want to be able to put the stock cat back in if need be. IE, no permanent welding. With the muffler, I'm not to worried about that.... That could be permanently removed. But I was looking at my Downpipe today while changing my oil.... it doesn't look really bad. Looks to me like 3.5", like the rest of the system. How big is the turbo outlet? No sense going any bigger than that.
So where can I get a factory size test pipe from? who makes them?

[Evil Eye]

The cat has 3.5" connections at each end, so any of the "test" pipes should work...

[JBakerFX4]

from what companies? might PM FBD.

[720Deere]

AFE supposedly makes a "test" pipe that fits the stock system.

[JBakerFX4]

searched AFE, they seem to only make 4" and 5" test pipes.

[hazelbalz]

MBRP makes one that will fit. I just put it on mine and it fit fine. FAL414 is the cat test pipe number. Hope this helps.

[JBakerFX4]

just searched MBRP's site, the part number is valid, but then you can't see exactly what it is or anything... wierd. Might have to actually call them. But judging by the part number you have... it's aluminized, which is fine.

Another brain fart... if you buy a 4" turbo back, but opt to use your stock cat... which is 3.5", how does that connec to 4" pipe? Little confused there.