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 had the choice of a free Magnaflow Exhast System. I figured the bigger the better, so I got the 5" Turbo back kit. The kit is going on 01 Superduty with 75K miles on it. The truck is stock now but I plan on getting a aftermarket Intake system and a DP Tuner in the next 6 months. A buddy of mine is telling me is is going to hurt the truck (will not let turbo spool up right?). Will this hurt my truck? What do yall think?
some would say 4" with a 3 1/2" down pipe is optimal unless gunnin for 500 hp. no backpressure = loss of low end torque. someone that knows more will chime in to confirm or dispute this.
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2004 E450 Cutaway, 6.0L, quigley 4x4, ambulance pkg., maxbrake controller, curt 20k fifth wheel. Future mods: 52" sleeper, tandem (6x6?) rear (aint look'n likely), frame cover. maybe a Herd front bumper.
2003 E350, 7.3l, x-cargo
2003 F350 Lariat, 4x4, CC, SRW, Dark Green Fx4 SOLD
1995 C3500 6.5l work trk, 2x4, CC, DRW, white DECEASED PREMATURALLY
2003 JEEP WRANGLER, ooooops, not anymore!
1986 26' Seaway Northstar w/ 454 Mercruiser
2008 Montana Mountaineer 332PHT
1991 GMC Topkick, CAT, 4' vert. gang boxes, 12' dump. if only all were as reliable!
I had the choice of a free Magnaflow Exhast System. I figured the bigger the better, so I got the 5" Turbo back kit. The kit is going on 01 Superduty with 75K miles on it. The truck is stock now but I plan on getting a aftermarket Intake system and a DP Tuner in the next 6 months. A buddy of mine is telling me is is going to hurt the truck (will not let turbo spool up right?). Will this hurt my truck? What do yall think?
Tell your buddy to learn how a turbo'd engine works....then install the 5".
BTW the downpipe will only be a 4" anyway.
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2001 F-350 Lariat 4x4 Crew *4" BDS suspension lift w/315-75's * Ford AIS * MKO 5" exhaust * All 4 corners cleared * Front Reese Receiver * Draw Tite Fold Over Gooseneck * Reese 15K Sliding 5er * Gauges Whited Out * IC Foil Delete * Dieselsite Coolant Filter kit * DiPricol Optix White Faced Turbo,Pyro,Trans Gauges w/Dash Mount Pod * DP Tuner F5 60T 80E 120R 140X * John Wood Valve Body * ITP SS X-Over Line * ITP Boost Annihilator * 6.0 Trans Cooler * TCI Truck Master Triple Disc Billet Converter (-200 RPM) * Reviva Transmission * ESOF Converted to Manual Warn Hubs * 203' Thermostat * Turbomaster Wastegate Actuator * Gutted EBPV * Centramatics * Walbro GLS392 * Ford AICM * ITP Pre-pump * One Very Understanding Wife*
correct,truck will be fine with 5 inch.its overkill but looks good.enjoy,any other free exhaust kits avail?lol
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2002 f250 lariat 7.3 200k(motor has 170k)
original 4r100 tranny....200k and counting
knock on wood......
tony wildman chip......
stock,economy,daily,towing,extreme,smoke.
red elc good for 150k
4r100 1-2 2-3 3-4sonnax accumulator valves,.427 sonnax line pressure mod valve
4.125"yes thats 4 1/8" diy tymar intake(size matters...lol)
AIH delete,ccv delete,zoodad mod,
4" exhaust no muff
built my own leafs for 4.0 of lift!!!!!!
18" xd bronze revolvers with 325 nittos to wrap them
isspro pyro and boost guages on pillar mount....
The Magnaflow exhaust has the straight-through muffler, it goes straight through the center of the muffler with no restrictions compared to the stock muffler.
I have the 3 1/2" DP into the 4" SS Magnaflow on my 2000 7.3L Van, and I wrapped the entire exhaust with Thermo-Tec 2" Header Tape Wrap and it made the inside of the van super quiet, like over 50% improvement. It does not raise or hurt my EGT's, if anything it helps them the experts say. All NASCAR And most race cars have the pipes wrapped is a safe thing to do.
My Aux. Aft Fuel Tank is 1-2" away from the pipe rounding over the back axle, and the Thermo-Tec Wrap blocks all the heat. I don't have to worry about the fuel boiling or a possible fire from the hot pipes.
The Thermo-Tec Wrap is one of the best mods I did to my van.
When I had my van built, I drop-shipped Dynamat to the conversion company and they installed the soundproofing on the entire interior of the van, the floor, side-walls etc. It's quiet like a Rolls Royce. I also installed Q-Pads on the bottom of the van, on the underside exposed sheet metal and it made a big improvement. The 12" x 12" squares stick on the metal and you simply heat them with a heat gun and they stick on for good.
I also installed a new blanket of insulation inside the doghouse engine cover, and it really helped the soundproofing. The top of the hood, inside is also covered with Q-Pads, then the roof silver Dynamat Blanket. So much noise comes up from the hood in front of the windshield. If you soundproof the inside of the hood, you will love the results.
My point is, install the 5" system with the 3 1/2 or 4" DP, and enjoy your Truck. If the sound is too loud for you consider some soundproofing materials.
With a DP Tuner Chip and new Amsoil AaE Air Filters, you will have much more power and the back pressure will not be an issue. A Chip or Tuner is like Magic, like a whole new engine. These engines are "De-Tuned" as it is.
The Diesels are one of the best things to happen to light duty trucks and vans.
The new BMW 3 Series has a Twin Turbo Diesel Engine with very impressive numbers.
Check the BMW Site to watch some Flash Movies about the new Engines.
I can't wait for the new Quad Turbo Ford Trucks And Vans.
My van is my Sportsman vehicle, fishing, hunting and like a home away from home.
Yea its over kill but someday when you install a bigger turbo or twin turbo, propane , water/methanol injection etc.etc. etc. you will be all set in the exhaust department. By the way the turbo creates all the back pressure the engine needs.
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Jack
Sold: 94 F250 xcab, E4od, 4x4, IDI 7.3 turbo (Put the gears, lift, and goodies on the 97)
97 F250 XLT CCSB 4x4, PSD, stump puller heavy duty E4od, fast spool turbo, deleted ebpv, 203* t-stat, high pressure X line, 140v Idm mod, 6637 filter, 60hp chip, 3" downpipe 4" shorty exhaust, 4" lift, 4:10 gears, 35" tires, over 300,000 miles
Last edited by 1dieselman; 01-16-2009 at 07:10 PM.
The backpressure (less power) idea with these diesels is a myth. You could have a 6" pipe coming off the turbo and going up through the hood. Spool up would be faster with large vs small exhaust. EGTs lower. It's a no brainer.
I went from 3" downpipe DP-tuned to 4" turbo-back system. If anything got more torque, not less.
The Magnaflow exhaust has the straight-through muffler, it goes straight through the center of the muffler with no restrictions compared to the stock muffler.
I have the 3 1/2" DP into the 4" SS Magnaflow on my 2000 7.3L Van, and I wrapped the entire exhaust with Thermo-Tec 2" Header Tape Wrap and it made the inside of the van super quiet, like over 50% improvement. It does not raise or hurt my EGT's, if anything it helps them the experts say. All NASCAR And most race cars have the pipes wrapped is a safe thing to do.
My Aux. Aft Fuel Tank is 1-2" away from the pipe rounding over the back axle, and the Thermo-Tec Wrap blocks all the heat. I don't have to worry about the fuel boiling or a possible fire from the hot pipes.
The Thermo-Tec Wrap is one of the best mods I did to my van.
When I had my van built, I drop-shipped Dynamat to the conversion company and they installed the soundproofing on the entire interior of the van, the floor, side-walls etc. It's quiet like a Rolls Royce. I also installed Q-Pads on the bottom of the van, on the underside exposed sheet metal and it made a big improvement. The 12" x 12" squares stick on the metal and you simply heat them with a heat gun and they stick on for good.
I also installed a new blanket of insulation inside the doghouse engine cover, and it really helped the soundproofing. The top of the hood, inside is also covered with Q-Pads, then the roof silver Dynamat Blanket. So much noise comes up from the hood in front of the windshield. If you soundproof the inside of the hood, you will love the results.
My point is, install the 5" system with the 3 1/2 or 4" DP, and enjoy your Truck. If the sound is too loud for you consider some soundproofing materials.
With a DP Tuner Chip and new Amsoil AaE Air Filters, you will have much more power and the back pressure will not be an issue. A Chip or Tuner is like Magic, like a whole new engine. These engines are "De-Tuned" as it is.
The Diesels are one of the best things to happen to light duty trucks and vans.
The new BMW 3 Series has a Twin Turbo Diesel Engine with very impressive numbers.
Check the BMW Site to watch some Flash Movies about the new Engines.
I can't wait for the new Quad Turbo Ford Trucks And Vans.
My van is my Sportsman vehicle, fishing, hunting and like a home away from home.
Have fun with your Rig.
Man I'd love to ask for a couple pictures of your wrapped exhaust job... sometime not tomorrow :>)
that way I could see what the sticky sound proofing on the belly looks like too?
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-i wonder how many electrons were wasted for this space?
Well i just got done putting the 5" Magnaflow kit on the truck. I had stock exhaust with a straight pipe(no muffler). The kit is actually 4" pipe to about the transfer case skid plate then jumps to 5" though the muffler and to a 6" tip. The kit to my surprise is quieter than the straight pipe that was on the truck, but it looks dang good!
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), frame cover. maybe a Herd front bumper.
2001 F250 4x4 crew lariat 7.3L auto, DP Tuner F5 no-start/valet/20tow/80econo/140aggressive, Adrian Tavano's triple disc converter, transgo tugger HD2, ISSPRO egt/boost/pyro, foil delete, 6" stainless tip, Magnaflow 17979 4" turbo-back, dieselsite boots & coolant filter kit, HX crossover, boost fooler & tru-cool trans cooler, ported turbo housing, DIY 6637 Tymar, billet grill, line-x bedliner, bug deflector, tint, 08' alum diff cover, clear corners & tails, silverstar bulbs, Xtreme XT855 reverse lights, 1500w inverter, Tekonsha Primus, EQX, Epicenter, Autotek MM4000.1D, 2x Audiobahn AWT12X, 2/0 cables, JVC KD-AVX44 El Kameleon dvd deck, 12.5" flipdown video.
insulation topic tangent...
Linear Mode
