If im correct this truck (05) has 4 cats and if i were to gut 2 of them i wouldnt be losing backpressure and hurting performance would i? Just wondering i still have stock muffler with cutout but if i open cutout would like it to be bit louder but dont care for putting a exhaust to be loud all the time....

 

Part way through the 05-06 years they did the switch to two cats. Look under the truck to be sure. And if you think "backpressure" is essential to exhaust operation go to the link in my sig.

 

My truck was made in november 04 and i dont know or think that i seen a guy on recent thread say that so i figured he knew what he was sayin.

 

My 05 FX4 has 2...still pricey tho

 

You can cut the rear cats off and not have a cel or anything and it makes it a lot louder, that's what I did. Or you can cut all 4 off and replace with maggie high flows 94106 or 94136 (have bungs in them for 02 sensor), that's what I got and they're goin on tomorrow

 

What ones did you buy the 94136?

 

Yes

 

Yea guess im gonna have to do it myself im not that experienced welding so i was wanting to get a shop to do it but nobody will cause its "illegal" ha

 

You can find someone to do it lol just call around. Try small mom an pop shops

 

Tim1216, could you possible post some pics of the pipe that was welded in place of the rear cats? I'd like to get an idea of what it looks like.