4.6L General Discussion This section is for non-tech specific information pertaining to 4.6L (Modular) Mustangs built from 1996 to 2004.

Headers or TB??

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Old Feb 15, 2008 | 09:14 PM
  #1  
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Default Headers or TB??

Should i get bbk shorty headers or accufab tb.(the combo)
Old Feb 15, 2008 | 09:15 PM
  #2  
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Default RE: Headers or TB??

You would notice more power and better throttle response with the TB/pelnum combo, and it would be easier to install. I'd go with that over shorties.
Old Feb 15, 2008 | 09:29 PM
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Default RE: Headers or TB??

^ +1
Old Feb 15, 2008 | 09:29 PM
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Default RE: Headers or TB??

I'g do with the accufab combo. Save up for a PI swap and when you get the cash do the headers at the same time.
Old Feb 15, 2008 | 09:40 PM
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Default RE: Headers or TB??

It really depends on what you want to do.
Old Feb 15, 2008 | 10:12 PM
  #6  
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Default RE: Headers or TB??

headers are a total pain to install so i'd say tb/plenum combo also, but bbk and accufab dont have much difference for the prices.
Old Feb 15, 2008 | 11:19 PM
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Default RE: Headers or TB??

and dont buy shorties...LONG TUBESSS FTMFW!!!!!!!!!!!
Old Feb 15, 2008 | 11:48 PM
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Default RE: Headers or TB??

Since when do tb and plenum get more HP than headers?? Its more for throttle response. Maybe if you're lucky you'll see about 5rwhp. Shorties could be anywhere from 10-20rwhp, while longtubes (best bet) should net 20-35rwhp. All with a good tune of course, to gain the max power.
Old Feb 16, 2008 | 01:22 AM
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Default RE: Headers or TB??

ORIGINAL: GStam66

Since when do tb and plenum get more HP than headers?? Its more for throttle response. Maybe if you're lucky you'll see about 5rwhp. Shorties could be anywhere from 10-20rwhp, while longtubes (best bet) should net 20-35rwhp. All with a good tune of course, to gain the max power.
yea man yea.............. on a 4v
Old Feb 16, 2008 | 01:41 AM
  #10  
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Default RE: Headers or TB??

yeah your numbers are extremely exaggerated. a better estimate is probably 5-10rwhp for shorties, 10-15rwhp for lt's.

you have to remember, a FULL bolton and tuned GT with LT's will typically run around 250 or a little higher for auto tranny, around 260 for a manual. now thats longtubes, midpipe, catback, pulleys, CAI, TB+plen, and a tune. so saying 20-25rwhp for JUST the lt's i highly doubt that. but LT's will add more power than any other single bolton you can do...and also take the longest to do.



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