im trying to complete the cold air intake exhaust and headers upgrade, i currently have the INJEN CAI, and TRD exhaust, i'm planning for headers, but i heard that it gives the car a RASPY sound. anyone have experience with this? please advice is much appreciated. THANKS!

 

I have had experienvce with two different headers and I would say by far the best are the Weapon-R headers. I switched from alphawerks to those and I went from hella rasp to alomst none, plus it made the exhaust a lot quiter and had a few more hp's than the alphawerks.

I hope that helps

 

I have the WR header, and its by far the best header offered by any company for the tC right now.

 

yup MMW is the best header out there right now..if you wanna spend about $600-700 on em. it's a great piece though. its the only 4-2-1 header out there. i think it comes with its own s-pipe because the header part alone is longer and wouldnt fit stock s-pipe. so if you do buy it, you prolly wont need an s-pipe.

i have the AW header right now. alotta people complain about rasp but i think they are overexagerrating. for me, it only rasps between 4k-4.7k rpm range. daily driving, im hardly in that area so it sounds great so far. in a race, yeh it'll rasp in that range, but anytime after that it sounds good. if you have TRD exhaust, it will be HELLA loud. i had the trd on my car for 2 days and couldnt stand it. after that i put in my SP2 and it was waay better. i jus wanted to experiment with the trd. power, its prolly the best 4-1 header. plus, it looks better then DC's ceramic

 

Did you install the supercharger or MMW header first? The reason I ask is because MMW is almost certainly better on forced induction but may not be better on NA.

 

so basically u guys are all saying the weapon r header is best ? TRD exhaust and INJEN CAI combo

 

how much gain does it give? and i always though alphawerks had the best gaid?

 

I know this question wasn't directed at me, but I installed the MMW header AFTER the supercharger, and I will say it was a BIZNATCH! Had to cut off the damn heatshield and getting to the nut in the lower left corner was a PITA. The tech scratched the crap out of the alternator trying to get the nut on.

 

Why would you say it would not be better on N/A

 

The reason I said it "might" not be better on NA is because: On a forced induction motor you have an air pump pushing air thru the motor. So as soon as the valves open air is being crammed into the cylinders. The larger charge also helps air move out of the cylinders more effectively. Because of this you can use larger better flowing exhaust piping without mid-range torque losses. However on a NA motor the air is being pulled thru the motor with a siphoning effect(kinda like siphoning gas from a car.) If exhaust piping is to big(NA)-exhaust gas slows down and consequently cools down which results in a bottle-neck in the system. This results in power loss. I'm not positive this is how it works. This is just my understanding based on everything i've read.

I believe Alphawerks headers and Magnaflow exhausts were designed using a dyno. There is a reason Alphawerks reduces 4 pipes into 1 and there is a reason Magnaflow choose 2.25" piping. Here's some info:http://www.magnaflow.com/07techtips/faq/question10.asp

 

Just FYI.
Supercharging has nothing to do with headers.
it's a form of forced induction but not like turbo.
SO basically the best performing header will not only work good on NA cars but even better on SC cars as all other are talking about.

 

Syphon123, I have the same intake and exhaust setup. I been debating on the header to purchase. If you purchase the weapon r header, would you please post some video clip of the sound? Also, tell me what you think about the overall change in performance.

 

i'm still thinking on which headers to purchase, as of now weapon r has the best reviews.. but im afraid of the rasp that will come with it

 

MMW has the least rasp of them all. I HAVE the MMW and I have heard the others. The key is a resonator. I have virtually no rasp with this header. I have heard the AW with a catback exhaust and it sounds like poo

 

The MMW header produced great numbers on N/A, so it definately works good there.

As far as forced induction see if you can follow me on this one.
We will all agree a 4-1 header gives great top end, and a 4-2-1 is great for mid-range torque. I highly HIGHLY recommend the MMW header for a supercherged tC for this reason. With a centrifugal supercharger, as people with them know, there is a ton of top end pull, there is no problem making power above 5,000 rpms. Where the super tC needs help is the 3-5k range, whcih i can tell you is awesome with the MMW header. I previosly had an alphawerks header and it was ok untill 5500 rpms then it maybe made a difference. With the MMW on the dyno it made 5-7hp more than the alphawerks header from 3-4500 rpms, which on the street in the butt dyno ment better pull on initial exceleration.

HTH

 

Hey, do you have any updated pics of your engine bay with the MMW Header?

 

Couldn't have said it better myself. Well I probably could have, but I was just too lazy to type it

 

Why does everyone keep saying 4-1 offers great top end. 4-2-1 should offer the best top end because it has the least restrictive flow.

Magnaflow vs. Draxas
Magnaflow is more restrictive=more mid range torque
Draxas is less restrictive=more maximum horsepower

DC Sports vs. Alphawerks
DC Sports collector is more restrictive=more mid range torque
Alphawerks collector is less restrictive=more maximum horsepower

MMW does'nt even have a collector. It has Y's that are totally unrestrictive. This "should" result in max flow and max horsepower but lower mid range especially on a natural engine because headers help scavange the exhaust gases.

 

You have the right idea but you have it confused... 4-2-1 is more restrictive opposed to 4-1 but you have everything else on the money.

Another thing, let me tell you guys my experience... I am not knocking on MMW, they are good quality headers but they are not better than Alphawerks. If you get an s-pipe from CC or ZPI you will have the same power as MMW and even better top end. I know two buddies that have both setups and their dynos are almost identical (given 2-3 margin of error). The AW does have a little more rasp but its fixable with a resonator (22" or 30" preferred). So as far as value AW has MMW beat. Lets see what kind of headers ZPI and Draxas come up with, both are supposed to be 4-2-1...