Much Better
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Post Fiend
Joined: Oct 2005
Posts: 10,626
Likes: 7
From: Plano TX and Brentwood TN
Much Better
Right before lunch I went to an exhaust shop to see about what could be done with that wimpy sounding exhaust. It is amazing what can be done to give it a nice "aggressive" sound.
So far, I've really enjoyed this little truck. I'm used to more power then what this thing has, but I didn't get it with a mind to tow anything(all my trailers are gooseneck anyway), some hauling. So power isn't much of a fact.
About the only thing I didn't truly like was the exhaust that sounded worse then my mom's sewing machine when I would get on the throttle. Now it sounds so much better.
So far, I've really enjoyed this little truck. I'm used to more power then what this thing has, but I didn't get it with a mind to tow anything(all my trailers are gooseneck anyway), some hauling. So power isn't much of a fact.
About the only thing I didn't truly like was the exhaust that sounded worse then my mom's sewing machine when I would get on the throttle. Now it sounds so much better.
Senior User
Joined: Dec 2008
Posts: 184
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From: Rexburg, ID
Hey Tex, good to see you over here with the gasers, I don't get over to the 6.0L forum much sense I sold the KR for a 2010 XLT Loaded up nice, you always have good info so what did you all do to the exhaust?
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Post Fiend
Joined: Oct 2005
Posts: 10,626
Likes: 7
From: Plano TX and Brentwood TN
Not really as much as I would have thought that would have to be done in order to get a better sound.
We just put on a new muffler(flowmaster), he had his own pipes that he shaped to create the rest of the exhaust and we added 4"tips to it. The duals I have angled out behind each rear wheel(never was fond of the straight back duals).
Other then that not much else. The sound isn't like what I have on the 6.0, but it is very much an improvement and I'm suprised about how much, considering what I think of as so little, was done to it.
We just put on a new muffler(flowmaster), he had his own pipes that he shaped to create the rest of the exhaust and we added 4"tips to it. The duals I have angled out behind each rear wheel(never was fond of the straight back duals).
Other then that not much else. The sound isn't like what I have on the 6.0, but it is very much an improvement and I'm suprised about how much, considering what I think of as so little, was done to it.
Cargo Master
Joined: Sep 2005
Posts: 2,976
Likes: 911
From: Montana
Doh! I really like the stock sound, but to each his own... Though I have to protest... Flowmaster is too much of a Chevy thing.... All sound and no go. I am partial to Magnaflow and Dynomax (except the cheap super-turbos).
If I were just trying to go loud and obnoxious, I'd just leave straigh pipes or cherry bombs. Cheaper and you don't lose as many cool points in my book.
If I were just trying to go loud and obnoxious, I'd just leave straigh pipes or cherry bombs. Cheaper and you don't lose as many cool points in my book.
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Post Fiend
Joined: Oct 2005
Posts: 10,626
Likes: 7
From: Plano TX and Brentwood TN
I couldn't stand it. Of course, I'm also used to a straight piped 6.0 that is far from stock performance wise, so it's hard to go to stock after that.
That is true, but I do like how they sound.
Magnaflow I'm not too partial on, but that's just me. I don't have much experience with Dynomax.
Not viable here on various levels and I wasn't wanting all out obnoxious. Just something a little "meaner" or "stouter" then stock.
Not viable here on various levels and I wasn't wanting all out obnoxious. Just something a little "meaner" or "stouter" then stock.
Freshman User
Joined: Mar 2010
Posts: 28
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I had dual exhaust with stainless tips and a magnaflow muffler on my 2006 Chevy 1500. I loved it around town but on the highway around 70-75 it would annoy the **** out of me! I think the dual exhaust plus the K&N Cold Air Intake made it to loud for my liking. It almost seems the cold air intake was a step too far for loudness.
I'm scared to put dual exhaust on my new 2010 XLT because I don't want that annoying loudness on the highway when driving to see friends and family. It would drive me nuts when trying to have a conversation.
I'm scared to put dual exhaust on my new 2010 XLT because I don't want that annoying loudness on the highway when driving to see friends and family. It would drive me nuts when trying to have a conversation.
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Post Fiend
Joined: Oct 2005
Posts: 10,626
Likes: 7
From: Plano TX and Brentwood TN
I'll have to try to make it a point to get on the interstate for a bit to try it out.
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Freshman User
Joined: Mar 2010
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Yea Tex... 45-65 was perfect. Once I hit 70-75, it was annoying loud. But that was with the magnaflow and the intake kit. The intake made it loud before I had the dual exhaust put on.
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Postmaster
Joined: Jul 2008
Posts: 2,565
Likes: 2
Magna Flow exhaust isn't all that loud in my opinion. It's much quieter than the 2 chamber Flowmasters. CAI is another story. Those are loud and don't really do much good. They do let more dirt into the intake tract, though.
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Post Fiend
Joined: Oct 2005
Posts: 10,626
Likes: 7
From: Plano TX and Brentwood TN
I'm not fond of intakes period. However, I think with a normal occurance with the 5.4 in the superduties is that the engine tends to run lean when a person doesn't account for the a/m intake on the truck with custom tuning. I heard that even regular tuning there are still lean issues when people have the a/m intakes. I don't know if that translates to the 150s, I just know it's been an occurance on the 5.4s in the superduties.
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Post Fiend
Joined: Oct 2005
Posts: 10,626
Likes: 7
From: Plano TX and Brentwood TN
I'm going to have to get on the interstate tomorrow when I go get something to eat I guess. I'm a little nervous now. The truck is my travel truck when I'm not hauling the horses to a horse show.
Cargo Master
Joined: Sep 2005
Posts: 2,976
Likes: 911
From: Montana
This is why I am such a strong advocate of Dynomax race magnums (now called Ultraflows). They have a low tone below about 2,500 RPMs but really growl in higher up in the RPMs. They also don't have baffling.
Postmaster
Joined: Jul 2008
Posts: 2,565
Likes: 2
That's why there are different exhaust manufacturers. That way everyone's taste is covered. Air intakes do lean out the gas engines with OBD-II. The engine management system is so sensitive that it can detect more air, but it is not capable of correcting the A/F ratio without reprogramming. The EEC-IV systems didn't have that problem. It seems they would compensate for increased air flow in the intake better.
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Post Fiend
Joined: Oct 2005
Posts: 10,626
Likes: 7
From: Plano TX and Brentwood TN
Well, I have no complaints about the sound at highway speeds. It's just a little rumble between 70-80. I think the intake played a huge part in the loudness of the exhaust at highway speeds for you hawks.
I do notice the change of the sound when the T/H mode is engaged now. I barely noticed anything with the T/H compared to the 6.0 T/H mode, so I was starting to wonder if it was different from what the SDs get, but I notice more now by the change in the exhaust sound.
So far, I'm still happy with everything. Although I was a little worried there for a second.
I do notice the change of the sound when the T/H mode is engaged now. I barely noticed anything with the T/H compared to the 6.0 T/H mode, so I was starting to wonder if it was different from what the SDs get, but I notice more now by the change in the exhaust sound.
So far, I'm still happy with everything. Although I was a little worried there for a second.