straight pipe
New User
Joined: Nov 2002
Posts: 14
Likes: 0
From: Granite City USA
straight pipe
I have a cat-back exhaust with both of my cats, no muffler and duals out the back with 3x18in tips. Sounds pretty good. Sounds nice and deep at idle and has a good sound when I rev it. I like it.
Freshman User
Joined: Feb 2003
Posts: 27
Likes: 0
straight pipe
Hey guys,
I am having the same problem, i just had my exhaust done on my 95 shortbox 5 speed, currently no mufflers and both cats. Y - piped into dual 2.5s out the sides. Sounds like a hoover accelerating but really crackles when i down shift. I am thinking about taking the cats off this summer and running it through a single 18 inch glasspack hooked back up to the Y. I figure one glasspack has gotta be louder than two - but who knows its an art making the BIG 6 sound mean.
I am having the same problem, i just had my exhaust done on my 95 shortbox 5 speed, currently no mufflers and both cats. Y - piped into dual 2.5s out the sides. Sounds like a hoover accelerating but really crackles when i down shift. I am thinking about taking the cats off this summer and running it through a single 18 inch glasspack hooked back up to the Y. I figure one glasspack has gotta be louder than two - but who knows its an art making the BIG 6 sound mean.
Senior User
Joined: Jan 2003
Posts: 144
Likes: 0
straight pipe
Ok. I don't now why people sais that they have more power.
tell you what,
I've removed the Cat. it is fully strai Pipe. My mufler is a Brulen performance , you can see trough the mufler. it is straith. I'm single pipe to the muffler and then it split on 2 pipes.
so right now. I'm fully strait Pipe. And ****. I like the sound. but damn I got no more power on top speed.
Before I did that , I could go a 180 KM/H on highway. Right now I'm very lucky to get 140KM/H. and if I'm in a hill. forget it. you won't reach 140KM/H.
I think the reason might be
1. not enouph back pressure
2. The oxygen sensor is not reading correctly cause there is no
CAt anymore.
But I lost alot of power since I did it. I've change a lot of things just to make shure it was the cause. I've changed air filter, plugs, rotor, timing cap, wires. Nothing changed.
So I think it's not the right thing to do. And anyways the sound is not that loud either. Save your money for something else.
tell you what,
I've removed the Cat. it is fully strai Pipe. My mufler is a Brulen performance , you can see trough the mufler. it is straith. I'm single pipe to the muffler and then it split on 2 pipes.
so right now. I'm fully strait Pipe. And ****. I like the sound. but damn I got no more power on top speed.
Before I did that , I could go a 180 KM/H on highway. Right now I'm very lucky to get 140KM/H. and if I'm in a hill. forget it. you won't reach 140KM/H.
I think the reason might be
1. not enouph back pressure
2. The oxygen sensor is not reading correctly cause there is no
CAt anymore.
But I lost alot of power since I did it. I've change a lot of things just to make shure it was the cause. I've changed air filter, plugs, rotor, timing cap, wires. Nothing changed.
So I think it's not the right thing to do. And anyways the sound is not that loud either. Save your money for something else.
Posting Guru
Joined: Dec 2007
Posts: 2,386
Likes: 0
From: North Van BC, Canada. EH!
I only have single exhaust, but I yanked my cat in December, and replaced it with a straight pipe... I`ll get sound clips next nice day and pictures. Although I just micky moused the pipe, as I didn`t have access to a welder at the time. My truck is emissions exempt, so I dont have to bother with Cats, and other emissions crap.
Post Fiend
Joined: Jan 2007
Posts: 7,021
Likes: 4
From: Almost Heaven
Note;
With both cats and my flowmaster, it's still loud in the cab. Adding pipe makes it as quiet as stock. Happy medium anywhere? Good luck finding it. If I were to go on a long trip I would put a temp. tail pipe on it to save myself some headaches. :P
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