5 inch exhaust
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Cargo Master
Joined: Aug 2004
Posts: 3,455
Likes: 8
From: Williams Lake B.C.
5 inch exhaust
02 PSD 4x4 crewcab
Im looking at a 5" exhaust set up on Ebay.
Its a straight pipe with no muffler from the turbo back.
Can anyone tell me how loud that will make the truck?
I like a little loud but I dont want a noisy old tank for a daily driver.
Im looking at a 5" exhaust set up on Ebay.
Its a straight pipe with no muffler from the turbo back.
Can anyone tell me how loud that will make the truck?
I like a little loud but I dont want a noisy old tank for a daily driver.
Post Fiend
Joined: Feb 2006
Posts: 11,892
Likes: 2
From: Middle Tennessee
What setup are you looking at? I have a 5" system and can say it is not too loud, though I have the muffler just because that is the law here. I don't really think it muffles much, it is the MKO system. Looking through the muffler, it is huge. Seems any gas could go straight through.
Senior User
Joined: Mar 2004
Posts: 200
Likes: 0
From: Leavenworth Washington
I have 5" straight piped w6" tip on my truck, idle and low RPM its not really that loud, its just a deeper rumble, but when you got on it and get the RPMs up past 2k it starts to get loud.
Post Fiend
Joined: Feb 2006
Posts: 11,892
Likes: 2
From: Middle Tennessee
In my case, 4" DP and BB turbo with 1.15 housing, I really don't have any trouble with EGTs. Pulled a Bobcat on a tandem the other day. What a heavy pig that was. In 80 econo, outside temps in the 90s, took a lot of go pedal to get that sucker moving. I actually thought the trailer brakes were stuck.
I didn't like the way the 60tow tune was pulling it. Heaviest thing I have pulled.
Lead Driver
Joined: Jan 2006
Posts: 7,308
Likes: 250
From: Hartford, WI
I don't think this will help much. The restriction will be the 4 in downpipe anyhow. I don't think the rest of the exhaust system is really restrictive so going from 4 to 5 is not going to gain much. Ricers do it all the time. 5 in tip necking down to a 3 in outlet from the muffler further necking down to a 1 in inlet.
Post Fiend
Joined: Feb 2006
Posts: 11,892
Likes: 2
From: Middle Tennessee
That is correct. 4" will flow more than 3.5". After the DP it is all about preference as long as the pipe is at least 4" as well.
Trending Topics
Lead Driver
Joined: Jun 2007
Posts: 7,760
Likes: 27
From: Hampton, Maryland.
The 5 inch systems seem to be more about sound and look than performance. As stated, the down pipe is 4 inch so the 5 inch exhaust is about asthetics and sound. I like the look and the sound of the 5 inch so when I get to the exhaust again, I will more than likely go the 5 inch route.
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Fleet Owner
Joined: Jun 2004
Posts: 25,090
Likes: 1,112
From: Rio Rico, AZ.
I made recordings of my 5" exhaust a couple of years ago when I put it in.
I love the sound.
List of sounds
.
I love the sound.
List of sounds
.
Elder User
Joined: Mar 2006
Posts: 751
Likes: 0
From: Greeneville,TN
I agree with the above statements. I like the sound of my 5" straight pipe better than with the muffler. The 6" tip helps make it a little deeper. Mike you not going to write me a ticket are you.
Post Fiend
Joined: Feb 2006
Posts: 11,892
Likes: 2
From: Middle Tennessee
That 5" does rumble though. I love it even with the muffler.