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Old 10-16-2003, 10:28 AM   #1
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Good choice?

I ll get a Mac Fit Cat - Back Exhaust System, and I also will get longtube headers.

Is that a good choice?????
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Old 10-16-2003, 10:31 AM   #2
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remeber if you get long tube headers you need a "longtube" H pipe.

But thats a good choice.
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Old 10-16-2003, 10:33 AM   #3
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Remember shorty headers are good up to 300 hp. So shop around for the best deals. And be sure to check out our vendors first like Extreme Effects
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Old 10-16-2003, 10:38 AM   #4
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Long tubes rule im gonna get a set once my nitrous is in
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Old 10-16-2003, 10:39 AM   #5
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Iam getting a set of long tubes as well.
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Old 10-16-2003, 10:46 AM   #6
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very nice but but not a neccessity especially on 94-98 cars with good shorty headers. Unless you have a supercharger or turbo charger or you grow 2 new cylinders it is just not a gain. But if you just want them to be cool go ahead.

Even people with superchargers have shorties. You guys need to stop looking at catalogues and stop wishing for things that are not value added.

If I had a 99+ with crappy exhaust manifolds and I got a good deal on long tubes I would probably by some
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Old 10-16-2003, 10:52 AM   #7
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long tubes have been shown to give a good gain on 94-98 V6's running nitrous
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Old 10-16-2003, 10:53 AM   #8
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I have a 2003 V6 Mustang. Would I really need an "H" Pipe?
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Old 10-16-2003, 10:54 AM   #9
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That is not exactly true the only gain comes with removing the cats or going to high flow cats, headers alone did not make a gain on a nitrous setup
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Old 10-16-2003, 10:56 AM   #10
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I just wanna have more power and a nice sound. Would I need to get and longtube "H" Pipe with longtube headers?
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Old 10-16-2003, 11:00 AM   #11
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Here is the problem I see with your attemps at mods. Like most people you are going backwards. I would spend the money you want to spend on a cat back exhaust system first then get the P&P intakes and heads second, then go for headers and x pipe if you really want to. Because right now you will get almost no gains with a nearly stock motor


But hell that is only my opinion and you do what you want to do to your car.

but you did ask for opinions I just speak the truth with no Bull or spin
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Old 10-16-2003, 11:04 AM   #12
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Not exactly true but true. High flow cats and Longtubes on a V6 running nitrous will help over our stock shorties.



corey is right with ur mods u might not get anything but 1 HP tops. Long tubes r only really helpfull when u r making a lot more power via SC , heavy engine work,Nitrous
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Old 10-16-2003, 11:09 AM   #13
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Quote:
Originally Posted by Danger Dude
very nice but but not a neccessity especially on 94-98 cars with good shorty headers. Unless you have a supercharger or turbo charger or you grow 2 new cylinders it is just not a gain. But if you just want them to be cool go ahead.

Even people with superchargers have shorties. You guys need to stop looking at catalogues and stop wishing for things that are not value added.

If I had a 99+ with crappy exhaust manifolds and I got a good deal on long tubes I would probably by some
corey, they do add value. Not so much to stock cars (but thats how all mods are) Yes stock headers flow fine to around 300 hp, but i want to exceed that with my car

99+ headers pretty much flow the same as 94-98 headers they just look ****ty. But they are made wide, and flow pretty well.
Iam getting longtubes for my new engine which will be done correctly.
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Old 10-16-2003, 11:14 AM   #14
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Well first Charles I was not talking to you and no on the dyno the 99+ stock headers are restrictive with any power adder or head, intake and cam upgrade. They just dont promote good exhaust evacuation
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Old 10-16-2003, 11:17 AM   #15
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Quote:
Long tube headers promote torque and horsepower. Shorties
do the same to a lesser extent. I don't recommend
aftermarket shorties for a near stock v6. Whether it is a
94-98 or 99 up.
The 94-98 styles are a work of art for factory
headers. 99+ are ugly, but big and flow well.
If you're supercharged they *might* pose a
restriction.-83v6carb
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Old 10-16-2003, 11:19 AM   #16
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So should I get longtube headres when I wanna make some more mods to my engine in the future or should I wait with the long tubes?

And where can I find all the things that I want for cheap?
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Old 10-16-2003, 11:21 AM   #17
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Get longtubes later if u wanna run n2o or a SC or some heavy engine work. get just straight pipes or maybe an H pipe setup now and if ur an auto focus on ur rear end IE. Gears, Stall ect.
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Old 10-16-2003, 11:22 AM   #18
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no fighting dudes, this is all about knowing facts, corey iam not trying to piss u off either, so no hard feelings, just trying to figure it out.

I know that 99+ arent EXACT when compaired to 94-98's i mean look at this pic, their ugly. But the pipes are big and they do flow quite well for being from the factory. And compaired to 94-98's they obviously dont flow quite as well, but its very close. Hense why i posted mikeals quote.


pic of headers:
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Old 10-16-2003, 11:41 AM   #19
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Guys I recently have had the opportunity to see first hand at the number of many cars being dynoed and looked at all the data. It is amazing what actual dyno numbers are being made and what is a waste of time. I use to be a avid promoter of CAI,s but after seeing hundreds of dyno numbers they provide almost nothing. I was supprised to see exhaust add almost nothignon a stock car or a UDP add 3-5 HP not the 10-15 as advertised. I am not through either in a upcoming post I will have complete details on bolt ons and what is useless. It will be a eye opener

Do not take my post personal. The question was asked at the beginning of the post and I answered it truthfully (just trying to get facts out thats what this site is about)


I dont keep spending money on mail order chips I have been on the dyno lately and am working with Pete and the dyno guy and all of this has been free. My experiences with this problem will help me convey to others the problems with mailorder chips

I have been building fast cars for over 20 years including my fastest car a 650 HP Z-28.
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Old 10-16-2003, 11:47 AM   #20
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I agree with u on the bolt on thing and i know ur a good guy and me and u r friends on here. No need to change that. Im just pointing out the impression that i am getting from you. No need to delete this we can have an intelligent discussion on here.
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Old 10-16-2003, 11:51 AM   #21
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Thank you all for all your help. I really appreciate it and I am glad to be a memeber of this site.
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Old 10-16-2003, 11:53 AM   #22
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Charles you see the pic of the 2 types of intakes. The reasoning behind the long tubes being better ie thew same as the reason behind the 94-98 being better than the 99+ and it shows up on the dyno. The long tubes exhaust from the heads stay separated longer increasing flow and increase excavation of the exhaust meeting in the collector further down. The 94-98 headers have less length but still separate the exhaust into the collector increasing evacuation and velocity, but the 99+ the exhaust immediately comes out into a collection area like a standard manifold not allowing the same level of evacuation and flow and it does show up on a dyno

But enough of that also!!!!

Modding is a personal thing and I understand that. I say what I do from past experiences. I do not try to offend or belittle anyone. Modding should be fun and experimenting is also cool. After all it is your cars being modded. but when people ask I will give the most accurate answer best of my abilities.
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Old 10-16-2003, 12:00 PM   #23
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Lets get back to the topic of hand and help this new guy out some. Basically we all agree that he shouldnt get long tubes at this point and time correct??? Here is my opinion on what he should do after a nice set of straight pipes or H pipe with stock headers.

1. Rear end work. Gears really really help on a singleport with 2.73's
2. Ported upper and lower.
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Old 10-16-2003, 12:05 PM   #24
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Yep gears and intakes, heads, and cam. cam is not a neccessity if you are going stage 1 or equivilant intakes by themselves. but as you go up in stages heads and cam are essential to maximize HP output
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Old 10-16-2003, 12:06 PM   #25
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thread was edited some deleted ect.

no hard feelings to anyone.
Corey thanks for the facts buddy.
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Old 10-16-2003, 12:09 PM   #26
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the 3 gear heads toast (steve,charles,corey).
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Old 10-16-2003, 12:19 PM   #27
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Thanks for the editing Charles and we are all friends here. We can agree to disagree at times. we are after all men and as such have multitudes of opinions

But after all we are friend 8) 8)
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Old 10-16-2003, 12:53 PM   #28
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yup
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Old 10-16-2003, 01:06 PM   #29
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Thank you guys very much. I ll give u an update on my parts when they are all installed.

Bye David
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Old 10-16-2003, 02:09 PM   #30
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no problem.

Good luck on ur installs.
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Old 10-16-2003, 07:33 PM   #31
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Corey, we dynoed the 94-98 with an UD pulley and netted 9 RWHP. All through the band.

But here is what we have noticed on "modding".
The very same setup on one car will net X HP and then do a 2nd car the same way, they gains will be different.

And my take on that is each car is slightly different.
Much like a chip for ease of explanation.
a stock 96 is running pig rich for whatever reason, although it is stock.
A chip added to it would net more HP than the exact same stock 96 that wasn't running rich.

Now the arguement here is, well something is wrong with the rich car. But everything is checking out. So does that mean this stang was built on a monday? Meaning it just came from the factory a little off?
I don't know, but different cars although the same make and model can respond differently to the same mod.
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Old 10-16-2003, 08:06 PM   #32
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That is 9 hp on a dynojet dyno on most likely. The Dyno numbers I have been reading are off a Mustang Dyno and the readings are a constant 10% lower plus you add the error factor and that are not that far off whether 5 or 9 considering the cost especially on a 94-98 that is fairly cheap HP
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