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Old 05-14-2014, 08:37 PM   #1
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BBK shorty headers

So I'm looking to grab myself a pair of headers. After research, I have come to the conclusion that shorty headers are better for the 3.7? Is my conclusion correct? Also, how much HP/Torque can I expect from BBK shorty headers with an airaid CAI, Pypes axlebacks, and 3.73 gears? No tune yet. Does anyone recommend a better brand/header? Thanks guys!
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Old 05-14-2014, 08:45 PM   #2
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This is going to start a flame war and no i don't have hard proof that one is better than the other, but from what i have seen is the long tubes provide more horsepower, but lose some torque, while the shorties lose some horsepower, but gain torque. Personally i am getting shorties and i think they sound better on our 3.7. So you are running 3.73 gears and still dont have a tune? I would get a tune now. Before you get headers.
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Old 05-14-2014, 08:50 PM   #3
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Originally Posted by ironsurvivor View Post
This is going to start a flame war and no i don't have hard proof that one is better than the other, but from what i have seen is the long tubes provide more horsepower, but lose some torque, while the shorties lose some horsepower, but gain torque. Personally i am getting shorties and i think they sound better on our 3.7. So you are running 3.73 gears and still dont have a tune? I would get a tune now. Before you get headers.
Yes that's what I've heard, and that the more torque is better than more horsepower on the 3.7s. I got my car from the factory with the 3.73s on it. I can't get a tuner for it until my warranty is up. Stupid, I know, if it was up to me I would have a tuner, but I didn't pay for the car and its basically the only condition I have to abide by.
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Old 05-14-2014, 09:21 PM   #4
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Honestly after reading countless threads I think the general consensus is that shorties are the way to go. They are better for DD'ing due to the idle not needing adjustment (depending on the exhaust) and they tend to sound better for most people. LT's make the exhaust to raspy in my opinion.
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Old 05-14-2014, 09:22 PM   #5
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Go for the MAC's.
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Old 05-14-2014, 09:29 PM   #6
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I got my car from the factory with the 3.73s on it. I can't get a tuner for it until my warranty is up.
Um, Ford never offered 3.73 gears for the 3.7s, even as a standalone option, because they can't calibrate the speedometer for them. The only options were 2.73 and 3.31. Are you 100% sure you have 3.73s?
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Old 05-14-2014, 09:29 PM   #7
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Go for the MAC's.
How come MACs over BBK? Way more people have bought the BBKs on AM and I can't tell if they sound different on youtube videos.
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Old 05-14-2014, 09:35 PM   #8
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LT's make the exhaust to raspy in my opinion.
I think it's the x-pipe that comes with the LTs that make them sound raspy. As far as I could find, MAC and ARH are the only brands that offer anything other than an x style shorty midpipe for our 3.7s. I'm actually planning on getting a custom shorty h-pipe fabricated to go with my LTs.
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Old 05-14-2014, 09:36 PM   #9
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Um, Ford never offered 3.73 gears for the 3.7s, even as a standalone option, because they can't calibrate the speedometer for them. The only options were 2.73 and 3.31. Are you 100% sure you have 3.73s?
I could be wrong and they could be the 3.3 gears, but I'm almost certain they were 3.73's and put in by the dealer/ford. I bought my car new, but I searched long and hard for it, had to drive to Pennsylvania for it from Long Island. It was the exact mix of what I wanted, no rear security, no screen on the console, no leather interior or anything, but still the gears, appearance package, and whatever else comes with the performance package. It was a really really strange combo of things. I get about 18 MPG, and that's with most of my daily driving being 20+ miles highway.... and I don't floor it or drive like an idiot, so idk how else I would get such bad MPG if it wasn't 3.73 gears.
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Old 05-14-2014, 09:38 PM   #10
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How come MACs over BBK? Way more people have bought the BBKs on AM and I can't tell if they sound different on youtube videos.

That's because the MACs just came out so not many have tried them and ther is no way you got 3.73 gears from the factory. It's not even an option. Either the dealer put them in there and sold the car or you really have 3.31 gears.
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Old 05-14-2014, 09:45 PM   #11
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How come MACs over BBK? Way more people have bought the BBKs on AM and I can't tell if they sound different on youtube videos.

That's funny we practically have the same set up almost.. BBK CIA + Pype bombs axle backs and just ordered my tuner from AM, should be here this Friday.. I actually was in process to buy the BBK shorties but read some posts on here and from what I have learned here is that all those mods you put on your car really ain't worth jack unless you have the tune to support them.. Reason I went with the tuner first.. Next is shorties n then throttle body.. N then one piece aluminum driveshaft n then gears.. That's my order.. I understand you don't want to void warranty but deff should think about it lol.. I bout my car on 0 miles and said "what's warranty" haha crossing my fingers I won't regret it haha
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Old 05-14-2014, 09:47 PM   #12
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Um, Ford never offered 3.73 gears for the 3.7s, even as a standalone option, because they can't calibrate the speedometer for them. The only options were 2.73 and 3.31. Are you 100% sure you have 3.73s?

That's what I was thinking but didn't want to be the one to say it.
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Old 05-14-2014, 09:52 PM   #13
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I'm just getting into cars so I don't know the most about them. That being said, if you all say they are 3.3 gears then they are, I just thought that they were 3.73s, my mistake. I'm going to get a tuner once i hit 50k miles, I've had tranny problems and want that worked out before I void my warranty. I'm at 27k miles right now. I'd rather get mods I can put on and enjoy now first and get the tuner when I can use it rather than purchase a $400 tuner and have it sit in my garage.
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Old 05-14-2014, 09:54 PM   #14
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I am pretty sure dealers will void it for headers or am i mistaken? It's really just a game of cat and mouse with dealers
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Old 05-14-2014, 10:00 PM   #15
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I'm just getting into cars so I don't know the most about them. That being said, if you all say they are 3.3 gears then they are, I just thought that they were 3.73s, my mistake. I'm going to get a tuner once i hit 50k miles, I've had tranny problems and want that worked out before I void my warranty. I'm at 27k miles right now. I'd rather get mods I can put on and enjoy now first and get the tuner when I can use it rather than purchase a $400 tuner and have it sit in my garage.

If you crawl underneath and look at your rear differential, there might be a tag on there saying what gears are in there. Doesn't mean they weren't swapped and the tag wasn't changed. The easiest way to tell is jack the rear end off the ground, rotate the tire one complete revolution, and count how many times the driveshaft rotates. If it rotates 3 3/4 times, you have 3.73. If it rotates just under 3 1/2, you have 3.31. If it only rotates, 2 3/4, you have 2.73.

The gears are actually 3.31, not 3.3.
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Old 05-14-2014, 11:32 PM   #16
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How come MACs over BBK? Way more people have bought the BBKs on AM and I can't tell if they sound different on youtube videos.
I ordered the macs tonight, I'll give you an update in a few days.
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Old 05-14-2014, 11:35 PM   #17
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Please do, I've been debating between the BBK and Mac
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Old 05-14-2014, 11:38 PM   #18
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Please do, I've been debating between the BBK and Mac
No problem, I'll post up some good pics of them. I couldn't find many detailed pics of them anywhere on the web or other mustang forums.
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Old 05-14-2014, 11:39 PM   #19
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Great! Thank! Maybe a video too? What's the rest of your exhaust?
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Old 05-14-2014, 11:43 PM   #20
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Great! Thank! Maybe a video too? What's the rest of your exhaust?
It's all stock right now. I have the magnaflow comp axle backs in route and waiting on the shipping conformation from AM on the headers. I'll do a header stock midpipe/mufflers video then I'll do one with the axle backs.
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Old 05-14-2014, 11:45 PM   #21
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Perfect! Much obliged
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Old 05-15-2014, 09:43 AM   #22
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I have only seen one MAC in person and it was constructed pretty well. I also like the way they routed the primaries. Plus the BBK's qualities have been less than stellar.

Like mentioned about the MAC's have finally hit the market so they will be gaining traction now.
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Old 05-15-2014, 01:45 PM   #23
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Rear ratio codes

This is easy:
Open drivers side door.
Look on white sticker.
On the bottom just read where it say's axle ratio
Codes are:::
BB=3.73
CC=2.73
DD= 3.55
GG=3.31
YY=3.15

I was up to the Ford dealer a few weeks ago and they had a GT with some sort of performance package including Brembo brakes which included a 3.73 rear axle ratio. It was red with black stripes and 19 inch wheels. A guy was buying it while we were there. I do not think that a 3.73 is available on a V6 at all but it sure is on a GT 5.0.
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Old 05-15-2014, 02:50 PM   #24
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This is easy:

Open drivers side door.

Look on white sticker.

On the bottom just read where it say's axle ratio

Codes are:::

BB=3.73

CC=2.73

DD= 3.55

GG=3.31

YY=3.15



I was up to the Ford dealer a few weeks ago and they had a GT with some sort of performance package including Brembo brakes which included a 3.73 rear axle ratio. It was red with black stripes and 19 inch wheels. A guy was buying it while we were there. I do not think that a 3.73 is available on a V6 at all but it sure is on a GT 5.0.

Ronnie

Easy as long as it hasn't been changed. Only way to know for sure is to rotate that tire and count the revs on the driveshaft.
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Old 05-15-2014, 03:02 PM   #25
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Without a custom tune to tie everything together don't expect much.
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Old 05-15-2014, 03:33 PM   #26
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After you get the shorties installed, even though no tune yet, please report lol!!. My wifes 2012 v6 is bone stock and 2.73's..I loaded a bama sct 87 tune, and it was a nice upgrade. I may do shorty headers, just wondering--I heard they make a much better difference
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Old 05-15-2014, 04:51 PM   #27
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I just got my BBK Ceramic shorty headers in, getting them installed tomorrow. They look high quality, so no complaints so far. It will be hard to tell how much of a difference they make as I'm getting a BBK catted Xpipe installed at the same time. I'll report back once I get everything installed.
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Old 05-15-2014, 04:54 PM   #28
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Sweet!
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Old 05-15-2014, 05:39 PM   #29
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Just checked, door says GG, axles are 3.31, my mistake everyone.
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Old 05-15-2014, 08:28 PM   #30
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I've had my bbk shortys for about 2 months now with roush abs. And I love them. I have no regrets at all but I actually ordered a offroad h pipe tonight because I got used to the sound and it got to a point where it wasn't loud enough for me. Yes I know I'm a fool for saying that and yes it is my dd as well.
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Old 05-15-2014, 08:29 PM   #31
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If i replace my mid pipe im thinking about a catted h pipe
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Old 05-15-2014, 08:35 PM   #32
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Why cats?
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Old 05-15-2014, 08:36 PM   #33
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I just simply dont like the sound of off road mid pipes, especially on our 3.7
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Old 05-15-2014, 08:39 PM   #34
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I just simply dont like the sound of off road mid pipes, especially on our 3.7

Look up Dillionshad on Instagram I think he even has a YouTube video doing some burnouts. Car sound AMAZING!
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Old 05-15-2014, 08:40 PM   #35
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I follow him on instagram, and yes his car does sound great, but i dont like it when it hits high rpms. His ghost cam sounds fantastic at idle
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