I just finished removing the cat from the truck, replacing it with a piece of pipe. So now it is truly a straight pipe. Sounds great in the garage, now to take it for a test drive.

Has anyone else that has done this, found that it changed EGT temps or changed fuel milage?

 

the more air out will help out so how did the road test go

 

I just stuck the Cat back in my truck and there wasn't a change in performance.

 

I took it for a short test drive this morning to breakfast. It sounds a little louder all the time but a lot louder when you get next to something on the tailpipe side. I didn't get on the highway to really check out egts at speed, but they seemed close to the same as before in town. I did notice that it smokes easier than before without really getting on it at all.

 

i actually felt like i lost a little power in the pant-o-meter when i took my stock muffler off.. but when i took my cat off i gained like 2-4 mpg didnt really feel like i gained any hp removing the cat...

 

I did that and went all open for about 2 weeks then I had to muffle it some so I put a Magnaflow on it. I don't know if it helped anything or not b/c I only had the truck for a week before I did it....but I sure do like the way it sounds now

 

mine was "pre straight piped" when i got it, so i don't know how it ran with a cat and muffler, but i really like it without anything on, and it seems to be going strong around 70,000 now and no problems

 

If you want loud get a 5" Kit with no cat or muffler and a 6" Tip