Levin Bt 20v Hks 4-2-1 extractor.

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Engine and Performance

Levin Bt 20v Hks 4-2-1 extractor.

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It crosses long time HKSK now-how of exhaust technology is utilized, engine efficiency100% Aiming toward high dimension % with in order to pull out, the exhaust manifold which it was researched & was developed.
In order to clear the obstacle, efficiency guaranty in the intermediate limits and power rise with high revolution making use of the technique which it diverges, it approaches individually in every model.

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NA If you mention charm of the engine, the response where the after all high rotary limits are sharp.But in case of street use, about the same entire balance feeling as the response where the high rotary limits are sharp is strongly required.
The torque quality where the response and the balance where the high rotary limits are sharp are undertaken in order to be compatible,HKSSo to design the partition plate in the gathering section, the device.
Length to the gathering section is optimized from cylinder block, junction structure (4-2-1 The special form gathering section) with adoption, it generates strong load inside the exhaust manifold, is needed torque rise of the low and medium-speed limits is made possible.

Difference of quality appears in the forum. We deliver as the new sense of value which calls the material feeling where the high performance which just the real thing has breathes, prejudice.In addition,HKS You do not forget either the existence impression of the engine compartment.The stainless steel which is superior heat-resistant corrosion-resistantSUS304You use for the material and pursuing fine view.

In addition, from prejudice to quality in welding all terminal areas you considered in beauty of the completionTig(Also to attach) adopting welding.It is done politely by all hand madeTigWelding, as for the beautiful completion from the first has raised strength durability.

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If strong vacuum is generated, strong positive pressure occurs in the form which repels properly.HKS So by the fact that the bypass pipe is made to connect to each cylinder pipe, size of the positive pressure which occurs control to minimum.“Positive pressure” inside the manifold the rhythm “of vacuum” is controlled.
Furthermore, in combination with main several connected positions of the bypass pipe to each engine exhaust quality, you rationalize.It has become possible to hold down positive pressure, without changing the power of vacuum.Because of that, as the graph shows, to cancel the valley of torque, the inertial exhaust effect (NA The effect which it tries probably to assure rapid power rise in the engine) it can obtain the engine quality which it is easy to handle with way and flat it utilizes to the maximum.

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i think 4-2-1 more popular was due to have 2 flexible nenas. There for less vibration. Pic2 and pic3 dun hv nenas
 
Anybody try the pic2 and pic3 b4? any comment?
 
Well.. as for the flexpipe (nenas), most racing headers don't have them. This is because the flexpipe will cause flow restriction which may cripple performance.

Those with flexpipe is more suited for street use and of cause can withstand more vibration. If the extractor don't have flexpipe, it can be easily fitted between the downpipe and midbox. Flexpipe can be easily found on chopshops... just get the smallest length possible.
 
this one is from 4-2-1

Adopting the oilless flexible joint.The vibration from the engine is held down to minimum

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this one is from 4-2-1

Adopting the oilless flexible joint.The vibration from the engine is held down to minimum

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I still can't figure out how this thing work in order to reduce vibration and how flexible is it compare to nenas.
 
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how this this work ?
- flexible connection for both pipe..

how it compare to nenas ?
- more advance technology
- more durable
- more flexible = reduce/absorb more vibration
- more expensive
 
yeah.. this fgk vibration absorb system very nice...

bumppppp
 
look like very easy to get leaking. Hv to physically feel the item then only can tell.
 
normal lah...the item belong to seller...up to him to put price...correct or not.
but...the money belong to buyer...up to them to buy or not,..if fell xpensive, don't buy lah...find other seller/shop...

actually seller need buyer n buyer need item!!!..price if can pay...paylah get the item...but that price...is higher lah...
 
hahahaa .....some time u got money also can't find the part....when not money the part come out ..............
 
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