good news!

[jake_duet]

well, gave the vin number to the local ford dealer today and found out my truck has a 03 turbo! cant wait to the the 4 inch mbrp STRAIGHT PIPE! i dont think my neighbors will mind

[PGreenSVT]

I already told you that.

[Javi@Stealth Automotive]

even without the vin number you can still tell a difference. Now you psyched your self into thinking its louder. Funny how the mind works. My 03 out whistles any 05 or newer f250 ive came across. Love that sound!

[Locust Cutter]

Not to ask a dumb question, but what difference does the year of the turbo make? I ask because a: I don't know and b: I want to put a 4"MBRP straightpipe on my '04, but dont know if the 4" down pipe will fit or if I have to "massage" things a bit,...

[Javi@Stealth Automotive]

The 03 and early 04 turbos had a louder whistle (chicks dig it) and supposedly put a little more power down than the later turbos. And full on 4 inch exhuast with a 4 inch down pipe will give you some trouble installing. That's why most pipes come with a 3.5 inch down pipe.

[armyguy209]

the 03 turbos has a louder whistle due to the 10 blade design rather than the later with a 12 blade design on the exhaust side which is what creates the whistle. I don't think there is any power difference...just the cool sound.

[jesilvas]

The 10 vanes in the exhaust housing the open and close creating quick spool times cause the louder whistle than the 12+ vane designs on later models. Not sure why. Just does. Accept it and be happy

[Locust Cutter]

Originally Posted by jesilvas

The 10 vanes in the exhaust housing the open and close creating quick spool times cause the louder whistle than the 12+ vane designs on later models. Not sure why. Just does. Accept it and be happy

Well, that's ONE less thing that I have to do to my truck then,...

[jake_duet]

yep so its time to straight pipe it. javi, do chicks really dig the whistle?