[pilot37]

just curious:
how much hp gain with open headers?

 

[mustangmanic]

Well, you cant run open stock headers.... and i would not suggest it on any engine smaller than a 350ci... you'll lose a tremendous amount of low end hp and tq and it sounds like complete ass on a 4.6 and especially a 3.8l v6

 

[groundpounder]

who in their right mind would run open headers on a 3.8?

YOUCH! you want to talk about a bumblebee in heat! That would be it!

 

[mustangmanic]

who in their right mind would run open headers on a 3.8?

YOUCH! you want to talk about a bumblebee in heat! That would be it!

hahahaahh... dont get me wrong, i love all mustangs, i just wouldnt do anything but a deep chambered muffler or keep em stock on a 3.8L mustang lol....

 

[blue88lx]

Lol, open headers w/ pissy neighbors are great. Had my xpipe off this weekend after I installed a new flywheel. i gave my neighbors a wake up call down the street at 8 am yesterday morning!

ohh, btw, open lt's or stocks on a v6 are a big no no. I wouldn't even put any louder than stock muffler on a sixxer. Go for the sleeper look and sound.

 

[pilot37]

lol-i wasnt actually thinkin of rippin off the exhaust :lol

im plannin on a full MAC exhaust once i finally get a friggin job
​

i was j/c how much the pipes impeded the flow

 

[stanglifemike]

You need that backpressure. I've heard a v6 with on manifold open, it sounded and performed like a turd

 

[347stroker]

Lol, open headers w/ pissy neighbors are great. Had my xpipe off this weekend after I installed a new flywheel. i gave my neighbors a wake up call down the street at 8 am yesterday morning!

ohh, btw, open lt's or stocks on a v6 are a big no no. I wouldn't even put any louder than stock muffler on a sixxer. Go for the sleeper look and sound.

Gotta love it haha, the people around my parents house are all old and bitchy. When I go see em I cant help but try and piss them off.

 

[SquirrelCV]

It's not worth the noise and aggravation on a V6. You only really feel a gain with that on a larger engine or one with forced induction.

If you're still N/A, then open headers is more/less for intimidation only.

 

[whitemustang02]

I ran open headers on my six IMO the idle didn’t sound to bad but when you got on the gas it wasn’t so nice. And I will say that it did seam to feel like it had a little less power then with a full exhaust.

 

[Dansby]

I had to run open headers due to my freakin cat breaking off my header, and white is right. It doesnt sound bad at idle, but getting on the gas is a different story. And it isnt legal anyways.

You will definitly notice a lose of low end power.

 

[97GT4.6]

white is right.

LOL You racist

 

[Breakout]

The only car I've heard that sounded good with open headers was my buddy's LS1 camaro with LT headers. That thing was ridiculous.

 

[TheBusher]

The only car I've heard that sounded good with open headers was my buddy's LS1 camaro with LT headers. That thing was ridiculous.

+1 I've heard an LS1 GTO straight out of LTs while the car and I were in a garage with concrete walls. Thing sounded NASTY!!! It was like thunder just at idle. And when it was reved...

 

[whitemustang02]

One of my friends had a 86 Chevy pick up with a built 454 in it and custom hooker open headers. Now that was just ****ing bad ass.