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.
I know that I don't need a 5" system, but I think I want one . I also know that I want to keep my spare where it is. I have seen some trucks that dump the exhaust in front of the rear wheel. I assume the noise would be louder in the cab - which would be good when the windows are up, but might be obnoxious in the summer on a long trip. I have also seen one truck dump the exhaust right in front of the differential with a fancy chrome tip that must have been 8" in diameter. It was close to the rear end and the way it was done shouldn't heat it. I would appreciate any comments on the options here and what manufacturers will do.
Also, what does everyone think about the Duals? I would assume you could get better than 5" flow from 4" duals and the spare tire is happy. How do the duals sound compared to a single?
no performance gain duals vs. single but duals will give you a more even sound, 5" will be louder, don't dump it in front of the rear wheel your rim will be black from the smoke
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Early 1999 (4/98) f-250 superduty, 4x4, crewcab, shortbed.
knn intake
banks exhaust
banks turbo housing
banks power elbo
big head waste gate-disconnected
edge juice w/ attitude (just till i get a DP)
4 gauge pod with DiPricol pyro, boost, trans temp, HPOP
the hypermax 5" you can still run your spare i had that before i went to 4".5"exhaust i lost about 2 mpg just because it was to free flowing for my stock turbo.
I have a 5inch aswell, clears the spare, it's close though. I've noticed no heat troubles with the spare tire. I have an MBRP
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'03 F-350 Reg. Cab 4x4 automatic trans, 5inch mbrp exhaust, afe stage 1 w/ torque tube, edge juice with attitude and 3inches of lift in the front with a add-a-leaf added to the factory springs and a 1inch block, 35inch BFG All Terrains on AR 16.5 by 9.75 rims.
i love my 5 with a 6 inch tip and like the others said its close but it fits fine
i think with the muffler its to quit iam going to do a delete pipe soon i also reed that it is a better heat disapating than the 4
try jeggs its a good price
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2001 F-350 larait c.c. s.b. 4x4 auto, keenwoodkvt915 in dash dvd 7inch screen ,1 alpine Rtype 12 woofer 1500 watts,pheniox gold mono block class d amp, scorpion BOX, level kit,mr taillight foglight highbeam kit, stock ford 18's on contie's, rancho 9000ES shocks ,6.0 transcooler, derale trans pan ,ccvdiy mod ,zoo dad , powerstrokehelp.com FUEL mods , hood insulation delete ,foil delete , high presure oil x pipe, DP tuner F-6 = 900rpmEBV, drive-thru tune ,EBV Engine brake tune,40tow ,60 econo, 80econo , supersmoke (use with OD) , 100hp, 120race 140agrresive, 3 pilier pod , pyrometer, 2trans temps inside tranny/outside ,boost,diy cold air6637 & 45 degree 4 inch alum.8"x8" , JEG'S 4" downpipe to 5" exhaust flopro 6"tip , dfuserA.I.H.plug, Extreme diesel Xwheel , (commin soon banks technicooler )
i have dual 5" in front of the rear wheels. i like the sound and looks. it is loud! there are many choices to fit everyones different needs or interests. good luck on your choice.
Thanks all for the input. I had heard once before that 5" compared to 4" lost MPG. This doesn't make sense to me. How can that happen? Sure the turbo could spool up a bit quicker (maybe). Beyond that I can see that EGT would go down. Appreciate any ideas on this before I make my decision. I certianly don't want to lose MPG at todays Diesel price.
i leave my chip on 50hp most of the time. sometimes i turn it to 140hp to show off. i drive in town and on the highway. in town i do the quick take offs. on the highway i drive between 70 and 80. i average 16.5mpg with all of that. not sure what kind of mileage you are looking for. i have no complaints though. results may very do to different tires, gear ratios, mods, and what ever else. good luck on what ever you decide.
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::2002 F-250::CREW CAB::4X4::7.3::6SPD MANUAL::HOME MADE UAL 5" EXHAUST EXISTS IN FRONT OF REAR WHEELS::CUSTOM AIR INTAKE::TS PERFORMANCE 140HP 6 POSITION CHIP::2" ROUGH COUNTRY FRONT AND REAR LEVELING KIT::UAL FRONT SHOCKS:: DUAL STEERING STABILIZERS::KYB MONOMAX SHOCKS::REAR SEAT LIFTED AND MOVED FORWARD 4"::CUSTOM SUB BOXES::CUSTOM DASH IN PROGRESS::
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. I also know that I want to keep my spare where it is. I have seen some trucks that dump the exhaust in front of the rear wheel. I assume the noise would be louder in the cab - which would be good when the windows are up, but might be obnoxious in the summer on a long trip. I have also seen one truck dump the exhaust right in front of the differential with a fancy chrome tip that must have been 8" in diameter. It was close to the rear end and the way it was done shouldn't heat it. I would appreciate any comments on the options here and what manufacturers will do. 
. How do the duals sound compared to a single?
i love my 5 with a 6 inch tip and like the others said its close but it fits fine 
i also reed that it is a better heat disapating than the 4 
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UAL 5" EXHAUST EXISTS IN FRONT OF REAR WHEELS::CUSTOM AIR INTAKE::TS PERFORMANCE 140HP 6 POSITION CHIP::2" ROUGH COUNTRY FRONT AND REAR LEVELING KIT::
Linear Mode
