Difference in Exhaust?
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Elder User
Joined: Jun 2003
Posts: 642
Likes: 0
From: Bay Area, CA
Originally Posted by strokin_it7.3
here is a page of Kwikkordead's signature. these clips are effing amazing. mine sounds a little deeper than that, but you get the point. his exits in front of the rear tire, and i believe he runs NO muffler?
http://home.comcast.net/~kwikkordead/index.html
i just listened to them again because the sssshhhhh sound between gears is pretty awesome.
http://home.comcast.net/~kwikkordead/index.html
i just listened to them again because the sssshhhhh sound between gears is pretty awesome.
Post Fiend
Joined: Jul 2005
Posts: 14,582
Likes: 12
From: 21791
i keep listening to them over and over. i get this stupid-funny grin on my face every time. mom came in and saw that i was grinning and asked "what are you looking at" as if i was looking at something i shouldn't have been. well at least when she is home anyway. 
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Elder User
Joined: Jun 2003
Posts: 642
Likes: 0
From: Bay Area, CA
Ok, a few more questions. Will I notice a difference in sound with 2 different 5 inch systems if they both have no mufflers? Or will the 350 system sound just like the 500+ system. Im looking at this one. http://cgi.ebay.com/ebaymotors/99-03...QQcmdZViewItem Good deal?
Also, I have the early 99, will I have install problems? Thanks guys!
Also, I have the early 99, will I have install problems? Thanks guys!
Logistics Pro
Joined: Mar 2004
Posts: 4,221
Likes: 3
Originally Posted by cangim
I would think unless you consistently polish the SS exhaust, it would start to corrode as well.
Elder User
Joined: May 2005
Posts: 968
Likes: 0
From: Tennesee
Black88GT,
5 Inch is 15-20% louder or so, not running a muffler is a personel thing, I don 't like them mufflerless. With a muffler they are quieter when cruising but nearly the same as mufflerless when floored. But to each his own perference etc.
Mark @ DPPI
5 Inch is 15-20% louder or so, not running a muffler is a personel thing, I don 't like them mufflerless. With a muffler they are quieter when cruising but nearly the same as mufflerless when floored. But to each his own perference etc.
Mark @ DPPI
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Elder User
Joined: Jun 2003
Posts: 642
Likes: 0
From: Bay Area, CA
Originally Posted by Mark at DPPI
Black88GT,
5 Inch is 15-20% louder or so, not running a muffler is a personel thing, I don 't like them mufflerless. With a muffler they are quieter when cruising but nearly the same as mufflerless when floored. But to each his own perference etc.
Mark @ DPPI
5 Inch is 15-20% louder or so, not running a muffler is a personel thing, I don 't like them mufflerless. With a muffler they are quieter when cruising but nearly the same as mufflerless when floored. But to each his own perference etc.
Mark @ DPPI
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Post Fiend
Joined: Feb 2006
Posts: 11,892
Likes: 2
From: Middle Tennessee
Here's my .02.
Loss of bottom end torque: not really an issue with a turbo and engine of this size. Backpressure is not your friend when you're trying to spool up.
4" or 5": my thoughts were, don't buy one thing and end up saying gee I wish I hadda. I hate doing that.
With either you will be able to run that thing up to redline faster than you ever did, and you've got to keep an eye on that especially if you have no gauges. All this before a chip. This is because that boost will come on that much quicker without the backpressure behind the turbo. That's the fun side of driving the truck.
Also, mine blew a lot less smoke when I got on it with the new exhaust. Well, at least before I chipped it but that's fuel again, not damage.
SS is the heat, but I got the aluminized. How long you plan on owning the truck? Think that over. Most shops today don't put SS on anything they replace unless you ask and pay for it. A good aluminized can last a long time.
Loss of bottom end torque: not really an issue with a turbo and engine of this size. Backpressure is not your friend when you're trying to spool up.
4" or 5": my thoughts were, don't buy one thing and end up saying gee I wish I hadda. I hate doing that.
With either you will be able to run that thing up to redline faster than you ever did, and you've got to keep an eye on that especially if you have no gauges. All this before a chip. This is because that boost will come on that much quicker without the backpressure behind the turbo. That's the fun side of driving the truck.
Also, mine blew a lot less smoke when I got on it with the new exhaust. Well, at least before I chipped it but that's fuel again, not damage.
SS is the heat, but I got the aluminized. How long you plan on owning the truck? Think that over. Most shops today don't put SS on anything they replace unless you ask and pay for it. A good aluminized can last a long time.
Junior User
Joined: Mar 2006
Posts: 70
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Just my opinion but I just installed the MBRP 4" with muffler and I will tell you that on my vehicle (01 Excursion) there is a deffinate power loss on the low end. The truck was much quicker before the exhaust. Since I am going to modify the hp and tq with a DP setup I am not worried about it.
If you do not plan to add more Hp than leave it stock and get a muffler delete pipe.
If you plan on mild performance upgrades (up to 100hp) go with 4".
You would really have to be making some serious power to need a 5"
Ya the 5" looks cool and sounds good but I'd be willing to put up a Franklin that a 4" will beat a 5" in the 1/4 with all else being equal and the truck running a 120hp Jody tune.
Also as they say in the marine industry stainless means just that, stains less.
If you do not plan to add more Hp than leave it stock and get a muffler delete pipe.
If you plan on mild performance upgrades (up to 100hp) go with 4".
You would really have to be making some serious power to need a 5"
Ya the 5" looks cool and sounds good but I'd be willing to put up a Franklin that a 4" will beat a 5" in the 1/4 with all else being equal and the truck running a 120hp Jody tune.
Also as they say in the marine industry stainless means just that, stains less.
Laughing Gas
Joined: Jul 2003
Posts: 1,157
Likes: 1
From: Littleton, Colorado
What exhaust is right for you all depends on what you do with your truck.Your main benefit to a larger exhaust is longevity of engine, fuel mileage and especially your turbo life. My '01 was way quicker with stock exhaust and a muffler delete pipe. I spooled quicker and had more boost. Problem was my egt's were hitting 1200 degrees way to quick. I went with a 4" turbo back and lost a lot of low end quickness, but I tow every day and my exhaust temps dropped 200-300 deg. Some days only 4000 lbs. but most of the time 8000+ lbs. I drive my truck hard and always in the mountains and the 4" turbo back was perfect for me.
As far as SS or aluminized, its really a personal preference. This is only my opinion, but I only will replace parts with those of equal or greater quality. They came with stainless steel and thats the way I went. Not for looks, but again for longevity.
Hope that helps,
Austin
As far as SS or aluminized, its really a personal preference. This is only my opinion, but I only will replace parts with those of equal or greater quality. They came with stainless steel and thats the way I went. Not for looks, but again for longevity.
Hope that helps,
Austin
Senior User
Joined: Nov 2005
Posts: 236
Likes: 1
From: Texas
Well I still stand by my opinion that the 5 is more than worth the extra money you will spend on it. I could have sworn that I read somewhere that the 4 cut backpressure by 95% and the 5 cut it by 98%, so if that correct then there won't really be any lag difference between the two.Now granted you can't take advantage of that extra 3% less backpressure unless your pushin some serious horsepower but don't get the opinion that your going to be slower than a guy with a 4 if you get a 5.
And I think that the turbo and injectors were different on the early 99's but the difference doesn't affect any exhaust selection (you can still get the same downpipe as everyone else).
And I think that the turbo and injectors were different on the early 99's but the difference doesn't affect any exhaust selection (you can still get the same downpipe as everyone else).
