exhaust question

Sam'sWildStang · February 19th, 2007, 08:54 PM

if i had two performance cats with true duel, would two chambered flowmasters create enough backpressure to prevent loss of horsepower on a stock motor, (or one with no boost)

GreenFaleen · February 19th, 2007, 09:13 PM

back pressure is more in your piping than the mufflers even though chambered mufflers will cause more.

Sam'sWildStang · February 19th, 2007, 09:41 PM

yea, but would true duel on a stock motor have enough back pressure to prevent horsepower loss

GreenFaleen · February 19th, 2007, 10:11 PM

with 2.25-2.5 inch piping yes thats what I have. I have 2.25 but the more back pressure the more low end torque the less back pressure the more high end hp and less torque.

scubasteve041186 · February 19th, 2007, 10:11 PM

um not too sure i have true dual with magna flow muffs and i didn't notice any loss until i had one side pipe ripped off bya sewer drain. then i noticed a hp loss from no back pressure.

scubasteve041186 · February 19th, 2007, 10:12 PM

but i know magna flow makes a single exhuast thats suppose to be better then a true dual. it's all preference though to have one or two.

Sam'sWildStang · February 19th, 2007, 10:16 PM

i think ill go with two 3chamber flowmasters, on true duel, and get two gt cats. and H pipe, that should be ok

GreenFaleen · February 19th, 2007, 10:16 PM

that piping would be beastly to make a single better than duals.

GreenFaleen · February 19th, 2007, 10:16 PM

Originally Posted by Sam'sWildStang

i think ill go with two 3chamber flowmasters, on true duel, and get two gt cats. and H pipe, that should be ok

yeah you'd be great

Sam'sWildStang · February 19th, 2007, 10:18 PM

cool deal, thx for the help

GreenFaleen · February 19th, 2007, 10:20 PM

yup no problem

94pacecarSVT · February 19th, 2007, 11:12 PM

mac long tube headers. custom catted mac off road h-pipe. true dual flowmaster 40 series. thats what i got for my exaust. since i cant find a catalytic h pipe to fit mac longtubes, i havin one made from a mac offroad h pipe and obd2 cats.

itschristorres8 · February 19th, 2007, 11:59 PM

with dual 2.5 pipes you will lose back presure
even with 2.25 you will lose some but have a higher top end
but getting 2 isnt worth it at all

GreenFaleen · February 20th, 2007, 09:49 AM

Originally Posted by itschristorres8

with dual 2.5 pipes you will lose back presure
even with 2.25 you will lose some but have a higher top end
but getting 2 isnt worth it at all

Yeah but with 2.25 your not losing enough to really matter. And choking an engine just isn't very nice

February 19th, 2007, 08:54 PM	#1
Sam'sWildStang Regular Join Date: Feb 2007 Location: lynchburg, va Posts: 132 iTrader: 0 reviews	exhaust question if i had two performance cats with true duel, would two chambered flowmasters create enough backpressure to prevent loss of horsepower on a stock motor, (or one with no boost) __________________

February 19th, 2007, 09:13 PM	#2
GreenFaleen MM's Resident Ricer 2006 Scion tC 13.001@113 Join Date: Nov 2006 Location: Raleigh/Lenoir, NC Posts: 9,880 Blog Entries: 2 iTrader: 1 reviews	back pressure is more in your piping than the mufflers even though chambered mufflers will cause more. __________________ Scion Tc Turbo - 9psi 297whp 287wtq 2500lbs :p MM 4 Banger club: Senior Ricer NCMM #9 "Horsepower sells cars, torque wins races." -Carroll Shelby

February 19th, 2007, 09:41 PM	#3
Sam'sWildStang Regular Join Date: Feb 2007 Location: lynchburg, va Posts: 132 iTrader: 0 reviews	yea, but would true duel on a stock motor have enough back pressure to prevent horsepower loss __________________

February 19th, 2007, 10:11 PM	#4
GreenFaleen MM's Resident Ricer 2006 Scion tC 13.001@113 Join Date: Nov 2006 Location: Raleigh/Lenoir, NC Posts: 9,880 Blog Entries: 2 iTrader: 1 reviews	with 2.25-2.5 inch piping yes thats what I have. I have 2.25 but the more back pressure the more low end torque the less back pressure the more high end hp and less torque. __________________ Scion Tc Turbo - 9psi 297whp 287wtq 2500lbs :p MM 4 Banger club: Senior Ricer NCMM #9 "Horsepower sells cars, torque wins races." -Carroll Shelby

February 19th, 2007, 10:16 PM	#7
Sam'sWildStang Regular Join Date: Feb 2007 Location: lynchburg, va Posts: 132 iTrader: 0 reviews	i think ill go with two 3chamber flowmasters, on true duel, and get two gt cats. and H pipe, that should be ok __________________

February 19th, 2007, 10:11 PM	#5
scubasteve041186 Hardcore Enthusiast 2004 mustang 40th annv. Join Date: Sep 2006 Location: kelowna,BC, Canada Posts: 1,382 iTrader: 0 reviews	um not too sure i have true dual with magna flow muffs and i didn't notice any loss until i had one side pipe ripped off bya sewer drain. then i noticed a hp loss from no back pressure.

February 19th, 2007, 10:12 PM	#6
scubasteve041186 Hardcore Enthusiast 2004 mustang 40th annv. Join Date: Sep 2006 Location: kelowna,BC, Canada Posts: 1,382 iTrader: 0 reviews	but i know magna flow makes a single exhuast thats suppose to be better then a true dual. it's all preference though to have one or two.

February 19th, 2007, 10:18 PM	#10
Sam'sWildStang Regular Join Date: Feb 2007 Location: lynchburg, va Posts: 132 iTrader: 0 reviews	cool deal, thx for the help __________________

February 19th, 2007, 10:20 PM	#11
GreenFaleen MM's Resident Ricer 2006 Scion tC 13.001@113 Join Date: Nov 2006 Location: Raleigh/Lenoir, NC Posts: 9,880 Blog Entries: 2 iTrader: 1 reviews	yup no problem __________________ Scion Tc Turbo - 9psi 297whp 287wtq 2500lbs :p MM 4 Banger club: Senior Ricer NCMM #9 "Horsepower sells cars, torque wins races." -Carroll Shelby

February 19th, 2007, 11:12 PM	#12
94pacecarSVT Enthusiast 1996 Mustang GT 11.2@122.36 Join Date: Aug 2006 Location: North Carolina Posts: 656 iTrader: 1 reviews	mac long tube headers. custom catted mac off road h-pipe. true dual flowmaster 40 series. thats what i got for my exaust. since i cant find a catalytic h pipe to fit mac longtubes, i havin one made from a mac offroad h pipe and obd2 cats.

February 19th, 2007, 11:59 PM	#13
itschristorres8 Banned 00 V6 & 09 GT 13.37@104.4mph--BONE stock GT Join Date: Aug 2006 Location: south florida Posts: 15,806 iTrader: 2 reviews	with dual 2.5 pipes you will lose back presure even with 2.25 you will lose some but have a higher top end but getting 2 isnt worth it at all __________________ [SIGPIC][/SIGPIC] Acmillr loves me

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