WILL HEADERS HELP MY 4.0 - Ranger-Forums - The Ultimate Ford Ranger Resource


4.0L OHV & SOHC V6 Tech General discussion of 4.0L OHV and SOHC V6 Ford Ranger engines.

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Old 11-15-2010
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WILL HEADERS HELP MY 4.0

I HAVE A 1999 RANGER WITH A 4.0, AT,4X4,IT HAS A DROP IN K&N AND DYNOMAX CAT BACK WILL I SEE ANY POWER INCREASE WITH HEADERS, ALSO WAS GOING TO TAKE THE CATS OFF I DONT HAVE ANY EMISSION WHERE I LIVE
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Old 11-15-2010
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First off , please remove the caps key from your keyboard. I dislike being yelled at on here as I get it enough from my wife.
Second , if you are racing your truck , are running full open throttle 99% of the time ,or running boost, that is the only time headers will help.
Put 'em on if you want , for the sound, but be prepared to lose low end torque.
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Old 11-15-2010
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Quote:
Originally Posted by OTRtech View Post
First off , please remove the caps key from your keyboard. I dislike being yelled at on here as I get it enough from my wife.
Second , if you are racing your truck , are running full open throttle 99% of the time ,or running boost, that is the only time headers will help.
Put 'em on if you want , for the sound, but be prepared to lose low end torque.
X2 ...

You won't gain a lot of HP from them, and they're more trouble than they're worth IMO.
You'll have to retighten them once a week and they'll burn your spark plug wires up.
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Old 11-15-2010
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YOU WONT NOTICE MUCH DIFFERENCE WITHOUT SOME OTHER MODS TO COMPLIMENT IT.
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Old 11-15-2010
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YOU GUYS STOP YELLING. I CAN HEAR THIS THREAD ALL THE WAY FROM MY USER CP.
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Old 11-15-2010
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thanks for all the help i wont wast the money
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Old 11-15-2010
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I also though about headers, but nah. A few people up here have 'em, and they say that they feel a slight increase in power, but i dont know. It does help sound some.
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Old 11-15-2010
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I also though about headers, but nah. A few people up here have 'em, and they say that they feel a slight increase in power, but i dont know. It does help sound some.
I have the JBA's w/ the titanium ceramic coating, and I would agree with everything said above...but, I never had to worry about fitment or sealing issues.
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Old 11-15-2010
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what about taking the cats off
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Old 11-15-2010
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Originally Posted by 1Badcapri View Post
what about taking the cats off
X2 ...
I'd like to know the answer to this question too. I've been told you can only take the last cat off and I've been told that you actually loose power by taking the cats off because the engine was tuned with the cats on.
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  #11  
Old 11-15-2010
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leave the cats on. it doesnt matter if you have emmisions or not it is breaking federal law to remove them. plus you will do nothing but set codes and loss power all you will gain is making your truck louder. so leave them on.


you can get away with removing a cat that is after the last o2 sensor with out throwing a code. thats it.
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Old 11-15-2010
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o2 simulator so i wouldnt have any codes
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Old 11-16-2010
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factory ones are pretty free flowing the driver side is some what restrictive. IMO dont do them
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Old 11-16-2010
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YOU HAVE A 99 RANGER IT WILL NEVER BE FAST. :( SAVE YOUR MONEY.
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  #15  
Old 11-16-2010
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not tring to make it fast i do a lot of pulling with it
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