Here is what I am told.
03 motors have a diff dp then 04 motors. The 03 has a resonator in the dp,the 04 does not. The high pitched, jet like whistle comes when you put a dp on an 03 motor that originally had a resonator. If you look at the new Banks package they offer 1 dp with resonator for03s and one dp without resonator for 04s. I have a hog system on order and will let you all know.
Here is what I am told.
03 motors have a diff dp then 04 motors. The 03 has a resonator in the dp,the 04 does not. The high pitched, jet like whistle comes when you put a dp on an 03 motor that originally had a resonator. If you look at the new Banks package they offer 1 dp with resonator for03s and one dp without resonator for 04s. I have a hog system on order and will let you all know.
You are correct they are different.
Did you call MotorHaven for your parts?
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tim.lamkin@internetbrands dot com
Life is not only time……paradoxically, it is the denial of time!
What lies behind us and what lies before us are tiny matters compared to what lies within us.
as was said, you get the LOUD rumble of a big V8 (big american V8!), and a JET scream on accelration... you get both with an 03.
at normal driving, say 55-85mph cruise, you cannot even tell. at WOT from a dead stop, i pitty the poor ole lady standing on the curb when i leave a red light
I set off car alarms when it was straight piped !
around town it was acceptable...
but in MY Ex I have to disagree with you on the cruising sound...
it got too loud after an hour or so @ 80+ (long interstate highway speeds)...
course that could be my AGE rebelling more than my ears :-)
Nah !
we'll see how the turbo back does on my first long trip with it at the end of this month...
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05 Ex 4x4 6L -Walker BTM, 9005's fogs, GOSRACING headlight wiring harness, Silverstar 9008's, SCT is all - 8.9 @ 75 1/8th!
Gone but not forgotten -2003 Ebony Ex, 4x4 6L Westin Bull Bar, PIAA 520's, PIAA Headlamp UpgradeTurbo-back Exhaust...
even goner-2002 4x2 7.3L Ex Limited-buy back
I set off car alarms when it was straight piped !
around town it was acceptable...
but in MY Ex I have to disagree with you on the cruising sound...
it got too loud after an hour or so @ 80+ (long interstate highway speeds)...
course that could be my AGE rebelling more than my ears :-)
Nah !
we'll see how the turbo back does on my first long trip with it at the end of this month...
Without all the body work that we have, I think the pickup guys could live with it.........we have an echo chamber...
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tim.lamkin@internetbrands dot com
Life is not only time……paradoxically, it is the denial of time!
What lies behind us and what lies before us are tiny matters compared to what lies within us.
That was my thinking too Tim...
In pickups the noise is primarily behind the cab...
with our "buses" it's right under the passenger compartment !
However, they cannot sleep six comfortably.
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tim.lamkin@internetbrands dot com
Life is not only time……paradoxically, it is the denial of time!
What lies behind us and what lies before us are tiny matters compared to what lies within us.
first i went cat-back. not bad i liked it. then i added the downpipe, and left the cat. waaaay to much turbo whine for me. don't care for that jet engine thing. i haven't decided how i'm going to correct the problem.
Banks has a DP with a resonator in it, call MotorHaven and see if they have any DP with one in it.
I have said before that these things are very loud, and if your in the truck for 10/15 hours a day towing it could be a bit tuff.
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tim.lamkin@internetbrands dot com
Life is not only time……paradoxically, it is the denial of time!
What lies behind us and what lies before us are tiny matters compared to what lies within us.
but I don't consider my turbo whistle LOUD...
of course if the windows were down, maybe so...
I just don't want to mess up my hair ---or rather, the horror of it,
if I messed up my WIFE'S - could you imagine the trouble I'd be in for THAT ?!?!!?!?!?!?
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05 Ex 4x4 6L -Walker BTM, 9005's fogs, GOSRACING headlight wiring harness, Silverstar 9008's, SCT is all - 8.9 @ 75 1/8th!
Gone but not forgotten -2003 Ebony Ex, 4x4 6L Westin Bull Bar, PIAA 520's, PIAA Headlamp UpgradeTurbo-back Exhaust...
even goner-2002 4x2 7.3L Ex Limited-buy back
Hyper-physics………….I am with you on that one.
Buddy you are on the edge of trouble all the time, infact...I...from here...could push you over...
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tim.lamkin@internetbrands dot com
Life is not only time……paradoxically, it is the denial of time!
What lies behind us and what lies before us are tiny matters compared to what lies within us.
I installed a 4in turbo back hog system this weekend. No resonator, no cat, no muffler, and it exits out in front of the tire. Whistle is there for sure. Changes to loud exhaust sound under load. Really not bad at all with the windows up just cruising.
Cat-back was a piece of cake to install.If you don't have a lift you might have to cut the tail pipe.
Could you pull it off with just jacking up one side....rear end.
__________________
Administrator
tim.lamkin@internetbrands dot com
Life is not only time……paradoxically, it is the denial of time!
What lies behind us and what lies before us are tiny matters compared to what lies within us.
