exhaust
Post Fiend
Joined: Feb 2007
Posts: 14,541
Likes: 2
From: Dallas-Ft. Worth
Originally Posted by CSIPSD
Just a FYI... there is no performance gain from anything bigger then 4" turbo back... Not knocking anyone... hell I run duals, but there is no performance gain from anything bigger then 4".
Postmaster
Joined: Jul 2006
Posts: 4,993
Likes: 2
From: Bend, OR
Even at that point there is nothing to gain, unless you are shooting massive amounts of Nos... Dockboy is running a 4" system... Lukecline is running a 4" downpipe but I dont know whats from there back... Snow white is running a 4" system... abet a little shorter then most...
Fleet Owner
Joined: Jun 2004
Posts: 25,090
Likes: 1,111
From: Rio Rico, AZ.
Originally Posted by redfire42
Does the 5" HURT performance in anyway over the 4" systems or do they performe the same?
It simply sounds better.
Click on my signature where it says "5"exhaust" and you'll get a web page with a bunch of sound files.
Junior User
Joined: Mar 2005
Posts: 96
Likes: 0
Originally Posted by CSIPSD
Even at that point there is nothing to gain, unless you are shooting massive amounts of Nos... Dockboy is running a 4" system.....
There WILL be a loss in performance with a 5" down pipe.
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Post Fiend
Joined: Feb 2007
Posts: 14,541
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From: Dallas-Ft. Worth
I was really eyeballing the 5", but everybody I talked to said it really wasn't a factor until 500HP+, something I'm not going to do. Plus, they seem to mostly be in aluminized, and I wanted SS, so I went with the 4" SS MBRP from Thoroghbred. $480 with a nice SS tip shipped to my door. Will be here Monday or Tuesday. The "citydriving" clip sold me:
http://guzzle.rbmicro.com/mbrp.html
I really love the old hot rod style sound & whistle!!
Joe
http://guzzle.rbmicro.com/mbrp.html
I really love the old hot rod style sound & whistle!!
Joe
Posting Guru
Joined: Jul 2006
Posts: 1,515
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From: Jonestown PA
The 5" systems come with a 4" downpipe. I really don't think they have a 5" downpipe. There for thats where I guess the performance stays the same from the 4" to 5" system differance, since they all have 4" downpipes. Am I right or wrong here?
New User
Joined: Dec 2005
Posts: 24
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Finished installing my 5" MKO system last night, and yes, it uses a 4" downpipe. It took a bit longer for me and a buddy to do it than most people here had said it took them, though I suspect they might be rounding down on their install time 
. All told it took us about 4 hours, though neither of us had ever dealt with that turbo clamp before, so didn't even really know it worked, and that held us up.
I think the instructions that came with the kit were a bit lacking, but I was amazed at how well the system fit within the confines of the rear sway bar, shock, spare tire, and ultimately provided a good exit position. I installed the muffler "backwards" and really like the sound. Not too loud at idle but still lots of turbo whistle and plenty of rumble when driving.
As many have said before, this tank of fuel is gonna go fast
. All told it took us about 4 hours, though neither of us had ever dealt with that turbo clamp before, so didn't even really know it worked, and that held us up. I think the instructions that came with the kit were a bit lacking, but I was amazed at how well the system fit within the confines of the rear sway bar, shock, spare tire, and ultimately provided a good exit position. I installed the muffler "backwards" and really like the sound. Not too loud at idle but still lots of turbo whistle and plenty of rumble when driving.
As many have said before, this tank of fuel is gonna go fast
Post Fiend
Joined: Feb 2007
Posts: 14,541
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From: Dallas-Ft. Worth
Originally Posted by Redsundevil
Finished installing my 5" MKO system last night, and yes, it uses a 4" downpipe. It took a bit longer for me and a buddy to do it than most people here had said it took them, though I suspect they might be rounding down on their install time . All told it took us about 4 hours, though neither of us had ever dealt with that turbo clamp before, so didn't even really know it worked, and that held us up.
///SNIP///
. All told it took us about 4 hours, though neither of us had ever dealt with that turbo clamp before, so didn't even really know it worked, and that held us up. ///SNIP///
Joe
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