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| Performance Engine, Transmission, Naturally Aspirated, Forced Induction, etc. |
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Thu., Feb 14, 2008
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Weapon R Vs. DC Headers
Oki I cant decide if i want to get the Weapon*R 4-2-1 Race Header Long Tube or the DC Headers? The weapon R does like nicer and is a 4-2-1 setup. The DC headers are just cheaper. I want my engine bay to look nice but try to get the most power. Also i'm getting the HKS HI Power exhaust but don't want it to be raspy... Thanks
    
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Fri., Feb 15, 2008
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Headers for the most part, are less of an overall HP gaining modification as they are a modification that re-allocates your torque band.
Managing outflowing exhaust pressure is a large factor in torque management.
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Fri., Feb 15, 2008
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Well i would say MMW headers, but i have it, and it has a nasty rattle, plus fitment was horrible. Though performance seems a bit better since its 4-2-1 and there is less rasp that you would get in a typical 4-1.
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Sat., Feb 16, 2008
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Soulbane is correct. NA is not going to see much HP gain as compared what a FI engine is going to realize with a header swap. Don't worry, you will notice the difference w/o the primary 3-way cat. The OEM header is also a very short 4-1. The runners are too short to take advantage of the scavenging effect of a 4-2-1. Assuming that the 4-2-1 header runners are of the proper length to take advantage of this, you will have a more positive off throttle response. The torque band will better match the torque curve designed in the engine.
__________________
How Fast Was I Going? 
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Fri., Mar 21, 2008
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Yes, DC is only a 4-1. Weapon-r is a true 4-2-1 tho. I just put them on this week and love them!
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Next Mods: 9.5psi pulley(waiting to install), Forge 007 BPV, Boost, Wideband, and oil Pres. gauges, Stage 2 Cams, AEM F/IC and tune 300whp here I come
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Fri., Mar 21, 2008
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Quote:
The primary cat is a 3-way cat. The secondary cat is just a standard cat. 2 is all there is.
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How Fast Was I Going?
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Fri., Mar 21, 2008
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Weapon R bro
4-2-1 is better than 4-1 more toque 
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5 SPD .. B00STED BABY !! 
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Fri., Mar 21, 2008
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Love my Weapon-R. They are loud tho.
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Next Mods: 9.5psi pulley(waiting to install), Forge 007 BPV, Boost, Wideband, and oil Pres. gauges, Stage 2 Cams, AEM F/IC and tune 300whp here I come
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Fri., Mar 21, 2008
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i love noise
my neighbors don't tho .. good think t/c cars are low deep toned 
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Fri., Mar 21, 2008
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WEll its only low and deep with a 4-2-1 and a pretty good axleback, ive heard some pretty ****ty tc's. I dont wanna hate but it was a guy with a hks axleback and a DC header with the old tsudo midpipe consisting of a 16" resonator.
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Sat., Mar 22, 2008
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uh oh .. that duz sound like trouble .. i hate tC's that sound ricey .. kinda makes me feel bad
 lol
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Sat., Mar 22, 2008
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Bleh, I hate loud noises.
I just slapped the silencer on my GReddy axle back. Looking for the right set up for a custom mid pipe, not sure which two sized resonators to go with. Then it's Invidia S Pipe, Weapon R headers. But all these mods happen after handling =D
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Cornering Junkie
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Sun., Mar 23, 2008
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O yeah... Ive done the I/H/E/P crap, and getting suspension mods have better bang for the buck, unless u only use yur car to drive straight.. Now i know, if i do get a next car, what to get first.
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Mon., Mar 24, 2008
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yeap .. i'll do suspension first for sure on my next car
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Mon., Mar 24, 2008
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uhhh .. its tuff .. DEFINETLY lookin at the Evo 9 MR
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