4" or 5" exhaust? - PowerStrokeNation : Ford Powerstroke Diesel Forum
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post #1 of 7 (permalink) Old 08-28-2009, 10:28 PM Thread Starter
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4" or 5" exhaust?

My 4" exhaust has cancer and the cancer is beginning to win. Will lose or gain anything going to a 5" system or will it just sound different. Also looking for suggestions and vendors with best prices.

2011 F250 CC 4x4 Sterling Gray Metallic

2010 Cannondale Quick 4 (pedal powered commuter)
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post #2 of 7 (permalink) Old 08-28-2009, 11:05 PM
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Re: 4" or 5" exhaust?

if im not mistaken there is no difference in HP.. but the sound of 5" is pretty sweet to... i have 4" DP with 5" all the way back and no muffler or cat... i would go with 5".... got mine off ebay MKO POWER and installed myself...

2001 F-250 7.3L PSD 4x4, S&B CAI,Zoodad Mod,Foil Delete,Van Turbo,WW,4" DP w 5" Exhaust,CCV,HPOX,DP Tuner(high idle,lope,60hp,80hp,120hp,140hp)ITP Overboost Anhilator,Autometer PYRO & Boost, 2" Rear Lift w 2.5" Skyjacker Leveling Kit, Procomp ES9000 Shocks..
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post #3 of 7 (permalink) Old 08-28-2009, 11:11 PM
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Re: 4" or 5" exhaust?

I have 5" as well. It is a different tone than 4". I like it.
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post #4 of 7 (permalink) Old 08-29-2009, 12:10 AM
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Re: 4" or 5" exhaust?

go for the 5in I have a 4in down pipe and 5 straight back with a 6in tip you can get it off ebay for like 340 w/o a tip

2002 ext. cab lwb 4x4 7.3
05 front 08 rear conversion
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post #5 of 7 (permalink) Old 08-29-2009, 12:14 AM
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Re: 4" or 5" exhaust?

Same here, 4" dp and 5" straight out the back, sounds great! paid 350 from my local diesel shop, put it on my self. it was a new company called xbandit. No chrome tip, more of a "sleeper" look.

L99 SCSB 7.3 4x4 AEM intake, 5" straight pipe, 6pos Gearhead chip, Autometer gauges, Firestone bags, ATD Built tranny, Smoked lights, 15% tint, WW, Mr. Bobs boots & hoses, Leveled, Moto Metals
'02 F-250 RCLB 5.4 XL Plow truck
05 F-250 SCSB 6.0 XLT Plow truck

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post #6 of 7 (permalink) Old 08-29-2009, 01:07 AM
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Re: 4" or 5" exhaust?

4" is all you really need, but 5" does look and sound great. We have several kits to choose from in both sizes from budget systems all the way up to T304 show kits. If you have any questions, feel free to contact me.
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post #7 of 7 (permalink) Old 08-29-2009, 02:49 PM
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Re: 4" or 5" exhaust?

I would look into the budget kit Performance Truck sells. I have one on my truck and you can't beat the price and it works awesome. There is no benefit going to 5" at all, except for looks and sound.

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