Upgrades and Aftermarket - 99 & up 7.3L EngineUpgrading or adding OEM or aftermarket equipment to your 1999-Up Super Duty or Excursion with 7.3L Power Stroke diesel engine. Please confine discussion of topics in this forum to those items that are specific to the 7.3L Power Stroke engine.
Hey guys I needed some help with some options for my ehaust. I'm a college student so money is hard to come by but i've been looking to change my exhuast. I'm about to straight pipe my f250 and am kinda tired of the same 6'' tip i have come out the back. Some buddies think i should "dump" the exhuast with a turndown or do the side exit before the rear tire. Does one sound better than the other, any pros? cons? I'd appreciate the help.....thanks.
Some buddies think i should "dump" the exhuast with a turndown ...
Just be sure the turndown is behind and not under the truck, else you could wake up dead.
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...or do the side exit before the rear tire.
Oh, sure. Then you can spend all your free time trying to clean the soot off the rear wheels.
Apparently your buddies don't know beans about a diesel pickup.
You must have a tailpipe that goes over the rear axle, then out the back or side. Or else "stacks" that go up through the bed then up higher than the top of the cab. Else you'll be sorry. Or dead.
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My Sierra Blanca in the sig pic was a great pickup for 11.5 years. I sold it last year. Replacement is a 2012 F-150 EcoBoost SuperCrew Lariat.
ive run mine out before the rear tire before and i will tell you it is very loud in the cab ill post some pics of both of my trucks.
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early 1999, 7/98, F-250 7.3L, 250,000+ miles, 4x4, triple disk torque convertor, AFE dryflo home made cold air intake, straight pipe exhaust, superchips tuner (stuck on high performance tune,because someone stole the tuner out of my truck), 4.7K mod, Glow shift gauges (pyro, boost, egt), CCV mod, 3in of lift in front, 1in in back w/ 2009 SD rims w/ 2in wheel spacers wrapped in 325/65/18 Fierce Attitude MT, aftermarket headlamps w/ LED's, ranchhand grill guard, 03' front bumper w/ fog lights, gooseneck hitch
Dumping sucks!!! Messy undercarriage & droaning, plus it kicks up dust everywhere. Don't dump it, you'll regret it. Side exit was cool for a while. I ran with no muffler & side exit for a while. Your right rear wheel & tire, and side of your truck will get black from soot. And, it's loud with the passenger window down. I'm running a Summit Racing 4" mandrel bent, turbo back exhaust with NO muffler. Best set-up so far. Sounds good, Looks good, on sale for $269.00. Way easy install. Aluminized is $269, Stainless is $439. summitracing.com. Have Fun, and Good Luck!!!
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2003 F250 XLT 7.3L, Auto, FX4, Crew Cab, Long Bed, 6.5" Pro-Comp all spring lift & Firestone HD Rear Air Bags, BFG KM2 37x12.50x17 tires on Eagle 17x10 Rims, 4" Turbo Back Exhaust & muffler delete, Bully Dog Programmer @ 120 Hp setting ALWAYS, Machined & Bellowed International Up-Pipe Kit, Autometer Overhead Gauges (Boost, Pyrometer, Trans. Temp), Custom Pre-Filter Ram-Air with K&N filter, "John Wood" Custom Stage I Transmission, 6.0 Billet 3 Disk T/C, External T/C Lock-up switch, 6.0 Trans Cooler, Hughes Racing Deep Structural Pan, and a few more goodies. Now spinnin' AAM Rear & Dana Spicer Front 4.30:1 Gears with Warn Premium Locking Hubs.......I do a lot of towing.(13,000 lb 33' Toyhauler & 21' Ski Boat). 84,568 miles as of 11/09
yea it sounded great haha LOUD! just the way i like it! The back rim did stay a little darker than all the other ones, but if you are religious about washing your truck you should have no problem with it
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early 1999, 7/98, F-250 7.3L, 250,000+ miles, 4x4, triple disk torque convertor, AFE dryflo home made cold air intake, straight pipe exhaust, superchips tuner (stuck on high performance tune,because someone stole the tuner out of my truck), 4.7K mod, Glow shift gauges (pyro, boost, egt), CCV mod, 3in of lift in front, 1in in back w/ 2009 SD rims w/ 2in wheel spacers wrapped in 325/65/18 Fierce Attitude MT, aftermarket headlamps w/ LED's, ranchhand grill guard, 03' front bumper w/ fog lights, gooseneck hitch
The turbo quiets the exhaust to a point so there isn't a lot of difference in sound.The big difference is exiting anywhere under the truck will produce a reverb that will travel throughout the truck.Around town it might sound cool but on the highway at that certain rpm it will be so annoying.If you are short on money just replace the stock muffler with a straight pipe or a racing muffler and leave the rest of the system stock.
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2000 F350 srw pickup
3 in. leveling kit,35x12.5x16.5 BFG's,K&N air filter,4 in. exhaust from turbo back,Bully Dog boost,trans temp and exhaust temp gauges,Painless wiring inline module,Western Diesel four position chip(currently out being repaired),203 thermostat,Bully Dog shift kit.
mines straight piped for now
i live in Cali so i have to put my cat back on
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02 7.3l psd 6 spd 4x4 cc lb srw
cut muffler
afe stage 2 pro guard 7
wicked wheel
superchips programmer
BD x-monitor
aic
pro comp 6.5 lift
35x13.5x18 mtz
kmc wheels
pro comp track bars
viair 480c compressor
5 gal. tank running 200psi
train horns
firestone bags
piaa supper white head lights
70 gallon in bed tank
warn semi hidden winch mount
warn 12,000 winch
piaa 4" smr fog lights
thats it for now but more to come
no cat, no muffler, down in louisiana you dont need either!
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early 1999, 7/98, F-250 7.3L, 250,000+ miles, 4x4, triple disk torque convertor, AFE dryflo home made cold air intake, straight pipe exhaust, superchips tuner (stuck on high performance tune,because someone stole the tuner out of my truck), 4.7K mod, Glow shift gauges (pyro, boost, egt), CCV mod, 3in of lift in front, 1in in back w/ 2009 SD rims w/ 2in wheel spacers wrapped in 325/65/18 Fierce Attitude MT, aftermarket headlamps w/ LED's, ranchhand grill guard, 03' front bumper w/ fog lights, gooseneck hitch
Yea i have all the stock pipes except a aeroturbine muffler, but i'm fixin to cut it off soon. Heard the straight pipe is the way to go
I ran with the muffler for a bit, but removed it soon after the 4" turbo back install. The only major difference was the sound of the "Turbo Spool-Up". Sounds good, and the outside noise is tolerable. NO in cab difference in sound. In fact, I can't really hear the exhaust much inside the cab (Minimal) unless the windows are down. All in all, happy with the upgrade & changes. And, NO cats from the factory from 2003 (7.3L) back, even in California......
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2003 F250 XLT 7.3L, Auto, FX4, Crew Cab, Long Bed, 6.5" Pro-Comp all spring lift & Firestone HD Rear Air Bags, BFG KM2 37x12.50x17 tires on Eagle 17x10 Rims, 4" Turbo Back Exhaust & muffler delete, Bully Dog Programmer @ 120 Hp setting ALWAYS, Machined & Bellowed International Up-Pipe Kit, Autometer Overhead Gauges (Boost, Pyrometer, Trans. Temp), Custom Pre-Filter Ram-Air with K&N filter, "John Wood" Custom Stage I Transmission, 6.0 Billet 3 Disk T/C, External T/C Lock-up switch, 6.0 Trans Cooler, Hughes Racing Deep Structural Pan, and a few more goodies. Now spinnin' AAM Rear & Dana Spicer Front 4.30:1 Gears with Warn Premium Locking Hubs.......I do a lot of towing.(13,000 lb 33' Toyhauler & 21' Ski Boat). 84,568 miles as of 11/09
And, NO cats from the factory from 2003 (7.3L) back, even in California......
Not exactly true. All "early" '99s build before 7 Dec 1998 had a cat. And all hand shakers built after about October, 2000, had a cat to go along with their 275 ponies.
None of the '99.5 thru 2003 with 7.3L engine and automagic tranny had a cat.
I'll rephrase my last, MY 2003 PURCHASED 10/31/2002, BUILT AUGUST 2002, DID NOT COME WITH CATS............I know, 'cause I did the exhaust myself, along with most everything on that truck. AND, that's a CALIFORNIA truck (The Smog Everything State) where I've lived for 42 years. Hope that clears up my last mis-info!
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2003 F250 XLT 7.3L, Auto, FX4, Crew Cab, Long Bed, 6.5" Pro-Comp all spring lift & Firestone HD Rear Air Bags, BFG KM2 37x12.50x17 tires on Eagle 17x10 Rims, 4" Turbo Back Exhaust & muffler delete, Bully Dog Programmer @ 120 Hp setting ALWAYS, Machined & Bellowed International Up-Pipe Kit, Autometer Overhead Gauges (Boost, Pyrometer, Trans. Temp), Custom Pre-Filter Ram-Air with K&N filter, "John Wood" Custom Stage I Transmission, 6.0 Billet 3 Disk T/C, External T/C Lock-up switch, 6.0 Trans Cooler, Hughes Racing Deep Structural Pan, and a few more goodies. Now spinnin' AAM Rear & Dana Spicer Front 4.30:1 Gears with Warn Premium Locking Hubs.......I do a lot of towing.(13,000 lb 33' Toyhauler & 21' Ski Boat). 84,568 miles as of 11/09
I'll rephrase my last, MY 2003 PURCHASED 10/31/2002, BUILT AUGUST 2002, DID NOT COME WITH CATS............I know, 'cause I did the exhaust myself, along with most everything on that truck. AND, that's a CALIFORNIA truck (The Smog Everything State) where I've lived for 42 years. Hope that clears up my last mis-info!
but yours is an automatic...those did not come from the factory with a cat in Cali
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02 7.3l psd 6 spd 4x4 cc lb srw
cut muffler
afe stage 2 pro guard 7
wicked wheel
superchips programmer
BD x-monitor
aic
pro comp 6.5 lift
35x13.5x18 mtz
kmc wheels
pro comp track bars
viair 480c compressor
5 gal. tank running 200psi
train horns
firestone bags
piaa supper white head lights
70 gallon in bed tank
warn semi hidden winch mount
warn 12,000 winch
piaa 4" smr fog lights
thats it for now but more to come
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just remember there is going to be soot coming out so unless u wanna wash truck all the time keep that in mind
So. Cal. Fireman 
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