4.6L (1996-2004 Modular) Mustang Technical discussions on 1996-2004 4.6 Liter Modular Motors (2V and 4V) within.

how much power

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Old 11-21-2005, 05:36 PM
  #11  
Hyper00
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Default RE: how much power

You forget that your 99 w/PI flows more air than his w/o PI. You will see more from every intake or exhaust modification.
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Old 11-21-2005, 05:54 PM
  #12  
Dan04COBRA
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Default RE: how much power

Get rid of those straight pipes, asap. Junk!

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Old 11-21-2005, 05:57 PM
  #13  
Bob99GTConv
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Default RE: how much power

yea true with the fatter cams and bigger valves.
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Old 11-21-2005, 06:55 PM
  #14  
Jiggy_One
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Default RE: how much power

Just for giggles, I dynoed my 04 GT with the mods in my sig and I got 262 hp and 307 torque with a flat 12.9 a/f on a dynojet.

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Old 11-21-2005, 09:26 PM
  #15  
nanaki
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Default RE: how much power

i got a solid 10RWHP from just catback and catted X. no other performance mods, just those 2 things by themselves.
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Old 11-21-2005, 10:12 PM
  #16  
red2k1gt
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Default RE: how much power

ORIGINAL: nanaki

i got a solid 10RWHP from just catback and catted X. no other performance mods, just those 2 things by themselves.
Ill support this by stating I added 12 rwhp with an o/r x-pipe and SLP LM II catback
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Old 11-21-2005, 10:20 PM
  #17  
nanaki
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Default RE: how much power

an extra 2! NO CATS FOR TEH WIN!!!!
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Old 11-22-2005, 12:56 PM
  #18  
sandcracker21
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Default RE: how much power

10rwhp from that isnt unheard of....

why does it seem latly that every thinks aftermarket exhaust doesnt help?

the stock midpipe is soooo restrictive.....its a HUGE upgrade to get that outa there
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Old 11-23-2005, 01:55 AM
  #19  
Hyper00
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Default RE: how much power

^^You are correct by all means. The exhaust will deliver the most gains(bolt-on) on any type of automobile you mod. Whoever says it doesn't help is blowing smoke up your starfish!

10 horsepower really isn't bad, because the 99-04 exhaust isn't extremely restrictive. Hence the 10 rwhp gain. Restrictive would be 20-30 hp gains.
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