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http://s4.zetaboards.com/lexusaltezzaclub/topic/1148393/1/#new



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Exhaust Manifold Or Header
Topic Started: Sep 9 2012, 06:19 PM (778 Views)
AltezzaFanatic
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Stock
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Guys... the search function doesn't work...therefore need to ask in a thread..

There are many aftermarket headers on sale today from..TRD, Toda, HKS, 5Zigen and Fujisubo for altezza. I notice the 4-2-1 design is different for each brand.

As a rule of thumb what is the difference in terms of low end torque and top end power.
Which design will produce better low end torque?

Some 2 is longer while some are shorter.
Some 4 is longer while some are shorter.
The original header has short 4 long 2

Can someone share from experience?. From a 6MT perspective
2003 RS200 6MT.
Toda 268 Deg Cam.
K&N Panel Filter
Apexi Power FC EL Version
TRD Yellow ARB.
Endless Basic Rotors
Endless SS-Y Pads Front and Back.
Toda Power Lightweight Flywheel.
OZ Racing Ultraleggera 17x8 +48
HKS Silent Hi Power
FGK 4-2-1 Extractor and downpipe
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Celica RA45
Lowered
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the trd 1 is 1 of the better 1s but the headers are designed for top end power all the way to 9000 rpm ,with different longer rods and higher comp pistons '
have used these pipes on a std motor with quad throttles and power still dropped off at 7600 rpm like std but made better power right through the rev range
hope this helps
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AltezzaFanatic
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Stock
[ *  * ]
Thanks Celica RA45...... my engine is stock...so looking to to improve the low end torque. Recently installed Silent Hi Power muffler which has helped the low end power. looking to futher improve with header. :rolleyes:
2003 RS200 6MT.
Toda 268 Deg Cam.
K&N Panel Filter
Apexi Power FC EL Version
TRD Yellow ARB.
Endless Basic Rotors
Endless SS-Y Pads Front and Back.
Toda Power Lightweight Flywheel.
OZ Racing Ultraleggera 17x8 +48
HKS Silent Hi Power
FGK 4-2-1 Extractor and downpipe
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peanut
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Red Horns Devil
[ *  *  *  *  *  * ]
I am along the same line,
but thinking of getting headers custom made along with highflow cat and midpipe.

so i would be interested to find out what the ideal setup would be for stock...vs supercharged ( that's on the list for next year...maybe)
For Vinyl Car Wrapping solutions and CarbonFiber parts email:adam@modbox.works
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xnickx
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^^ You may thank me ^^
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Have done a few sets of HKS Racing Headers aswell as the HKS Super Header II, yet to have any before and dyno back from any of those though :I

Noone here has had any experience with the HKS range of headers?
Contacting me for parts

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MGtezza
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Custom
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I know it isn't on a manual but i've got a set of hks headers with a hi flow cat and axle back exhaust on a stock motor.


****EDIT
it made 124hp stock haven't had it back on the dyno yet with the extractors fitted will endeavour to do this asap :lol:
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