Does anyone know if there are some sort of clamps or boots to use to make the cat easily replaceable.? I'm worried about emmisions testing and dealer visits if I delete the cat but the way the pipes fit into each other would make it difficult to easily take out or put in. What about some sort of flex type pipe or fittings to make it a easy swap out as needed.

 

Look for some flat clamps like they use for 18 wheelers. You should be able to get them at NAPA or any semi parts supplier.

 

Those are what I use on the hole system , its a pain to take apart the ubolt type clamps and still have usable parts even in a shop , the flat bands are great & they come in galvinized & stainless .

 

what material is the stock exhaust? You could do it all in 4" v-band if it is stainless, but then you'd have some $$ tied up in vbands. But it would be clean and a quick swapout! Joe, can you send me a pic of your truck? I want to see how the 20 percent looks. My email is mkivbren@hotmail.com

Thanks!

 

DUH, I forgot to put that in the thread, it is a stainless system. Do ya'll have a link or photos of the flat bands or the v-clamps so I'll know what I'm looking for??

 

For those who have done the cat test pipe.....how long does the process take of removing the cat and adding the test pipe?

I've already read that in order to get the cat off that the crimps where the clamps were at have to be heated up and then the pipe must be twisted off slowly. Exactly how slowly or how long does that take?

 

where did yall find your cat delete pipes at have been looking for one for a little while just a aluminized pipe

 

Geno's Garage has both Stainless and Aluminized (MBRP brand). Pipe seems to be good quality, no clamps are supplied.

http://www.genosgarage.com/products.asp?dept=225

Be prepared with a good sawzall when you're ready to remove the cat (for test purposes). Otherwise you will fight with it for hours, and it's a dirty job. You may need to remove a frame cross member to reach the front clamp area. It made the job much easier on the mega cab.

FYI, just removing the cat and leaving the stock muffler and resonator (on mega cab) makes practically no difference in sound. On mine, nobody noticed and I'm not even sure I can tell.

 

dose it help with fuel milage or performance

 

Don't gain much of anything by removing the cat. Mine will stay in place until it clogs up. That's the day it will get a straight pipe.

 

I agree with many other opinions, there is no fuel mileage gain from cat removal. Any possible performance gain is negligible and will go unnoticed -- this has been proven with dyno results. It's just an exercise to test your patience, and you can also place the cat on moth ***** until you really need it someday. If given the choice again, I'd probably leave it on. I also notice more diesel smell if the wind is blowing toward the cab -- not bad, but occasionally more noticeable.

 

Does a muffler delete offer any improvements? How is the sound?

 

i did a cat and muffler delete on my 04 and love the sound, it is louder and more aggressive and deeper, turns heads when you romp on it going by, great under bridges

 

I did a muffler delete with about 400 mi on my truck. I love the sound!

 

When my brother put my Corsa exhaust on he took a cutoff wheel and made two cuts on the stock pipe on either side of the joint. Then took an air chisel and spread it apart. You could easily put everything back together if you needed.