New Exaust - Power

MadOnion · 06-05-2003, 07:35 PM

How much HP/Torque would this add:

Long Tube Headers
No Cats
H - Pipe
Stainless steal mufflers
Dumps down at rear axle

I heard that you can only get 25hp out of a exaust, is this true?
Does each piece still add power?

Fox Body · 06-05-2003, 07:52 PM

All that won't add any hp/torque. It will free some up though

. Also depends on your engine specs. What are they? On a stock stang, longtubes can hurt your powerband.

Anyways, if you're going from exhaust manifolds or factory headers and exhaust to what you have now, I'd say you'd free up anywhere from 10-15 horses.

MadOnion · 06-05-2003, 08:06 PM

The car is bone stock at the moment. It just has a Cold Air Induction w/o air silencer.

What would that entire exaust free up now?
I heard that if you do one part (mufflers ect) the others really don't do much?

What kind of mods would I need to do, in order to see benifits from it?

I have a Auto right now.

ChunkFunky · 06-06-2003, 08:51 AM

I got rid of my cats on my AUTO and it sounded cooler but I couldnt FEEL the power gains... they might have been there but it's tough to FEEL 5 HP... track times might show.. dyno charts too... I would loose the cats for nothing else other then the sound.. it sounds so much more bad ***.. if that's your thing... the cars come with HEADERs from the factory.. they arent great as headers goes but they are much better then most exhaust manifolds I've seen... that's 150 bucks for headers, shorties... LTs are more proabably more like 250.. might not show you any gains with a stock setup... might wanna spend the money on something more productive.. though if you're like the rest of us once you start modding you wont stop... so it'll be something you can grow into

-as

06-05-2003, 07:35 PM	#1
MadOnion Registered Member Join Date: Aug 2002 Location: The Dark Side of the Moon Posts: 40	New Exaust - Power How much HP/Torque would this add: Long Tube Headers No Cats H - Pipe Stainless steal mufflers Dumps down at rear axle I heard that you can only get 25hp out of a exaust, is this true? Does each piece still add power? __________________ Need advice on PC Hardware or Hifi equipment, just ask.

06-05-2003, 07:52 PM	#2
Fox Body Mustang Maniac Join Date: Sep 2000 Location: GA, U.S.A Posts: 2,266	All that won't add any hp/torque. It will free some up though . Also depends on your engine specs. What are they? On a stock stang, longtubes can hurt your powerband. Anyways, if you're going from exhaust manifolds or factory headers and exhaust to what you have now, I'd say you'd free up anywhere from 10-15 horses. __________________ 351W-powered 1979 Ford Mustang Ghia notchback '79 Video @ Idle Stock 5.8L under 4" cowl 'glass hood, C4 w/ Transgo shift kit, Holley 750 cfm, Edelbrock Performer RPM intake; Fluidyne Al radiator, Flexalite 175 electric fan, 1 5/8" MAC shorty headers, FRPP Al driveshaft; S&W 6-point cage; 2.5" Off road H-pipe, 2-chamber Flowmasters, 8.8" Rear w/ 3.55s; Weld wheels (15x6;15x8), Front: 225/60/15, Rear: 275/50/15 Nitto NT 555R Drag Radials; 14 x 4” K&N X-stream air filter. '92 GT (5-speed) Small In Car Video Stock 5.0L, 2-chamber Flowmasters, MAC CAI, Tri-Ax, Al pedals... "Red, thou art my companion. Hasten now your quickened metamorphosis to Green that I may conquer all who dare abide there beside me. May they be left thither behind burnt black." ---Fox Body

06-05-2003, 08:06 PM	#3
MadOnion Registered Member Join Date: Aug 2002 Location: The Dark Side of the Moon Posts: 40	The car is bone stock at the moment. It just has a Cold Air Induction w/o air silencer. What would that entire exaust free up now? I heard that if you do one part (mufflers ect) the others really don't do much? What kind of mods would I need to do, in order to see benifits from it? I have a Auto right now. __________________ Need advice on PC Hardware or Hifi equipment, just ask.

06-06-2003, 08:51 AM	#4
ChunkFunky Registered Member Join Date: Apr 2002 Location: Tustin, CA Posts: 465	I got rid of my cats on my AUTO and it sounded cooler but I couldnt FEEL the power gains... they might have been there but it's tough to FEEL 5 HP... track times might show.. dyno charts too... I would loose the cats for nothing else other then the sound.. it sounds so much more bad ***.. if that's your thing... the cars come with HEADERs from the factory.. they arent great as headers goes but they are much better then most exhaust manifolds I've seen... that's 150 bucks for headers, shorties... LTs are more proabably more like 250.. might not show you any gains with a stock setup... might wanna spend the money on something more productive.. though if you're like the rest of us once you start modding you wont stop... so it'll be something you can grow into -as __________________ '89 GT Convertible: TFS TW Heads, TFS Street Intake, TFS Stage 1 Cam, FMS 1.6 RRs, 24# Injectors, Pro-M 75mm MAF, No Name CAI, 3.73s, O/R H-Pipe, FlowMasters, AOD w/ Trans-Go Shift Kit

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