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HKS 08+ Evo 10 GT Extension Kit (Turbo Discharge Housing & Front Pipe)
by HKS
$1,811.25 NZD
SKU 14019-AM002
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*sold individually*
The key item of exhaust back pressure control with knowhow of HKS CZ200S (CZ4A).
Maximization of performance from stock turbine is the concept of the product.
Extension portion and Front Pipe portion are connected with a flexible joint.
It improves "durability" that is an important factor of tuning.
It offers new tuning possibility for EVO X.
Features:
- As stock turbine is small, it has good response at low rpm. At high rpm, due to exhaust resistance, feeling will be worse. By improved exhaust efficiency, boost pressure will increase earlier at low rpm and power & torque will be increased for whole rpm range up to high rpm.
- CAD designed complicated but ideal shape is manufactured with lost wax casting. Since lost wax casting items do not have welding portion, there is no problem of cracking by heat and the smooth surface guides exhaust gas flow smoothly.
- The turbine outlet is 2 ports independent shape for swing valve side and turbine impeller side to reduce resistance due to interference of gas.
- For street use, connection of extension and Front Pipe is flexible joint type like stock system to reduce vibration and to improve durability.
- Even lower side exhaust part is hit, it prevents damage to the engine or turbine.
| Component | Qty | |
| Extension | 1 | |
| Front pipe | 1 | |
| Stud Bolt | (M10) | 1 |
| Flange Nut | (M10) | 1 |
| Plain Washer | (M10) | 1 |
| O2 Sensor Bolt | 1 | |
| Gasket | 1 | |
| Manual | 1 | |
| STD | HKS | Remark | |
| Volume of extension | 3.273 X 105 | 4.103 X 105 | About 25％ UP |
| Inner diameter of outlet | φ57 | φ59 | About 10％ UP |
| Manufacturing method | Casting | lost wax | |
| Thickness | 4mm | 3mm | |
| Material | SUS304 | ||
| Close noise level | silent HPmuffler+ metal catalyser (R:93 / L:92dB) | ||
"Hosepower" & "Torque" increased at entire rpm range!!
Twin port VS Single por
win ports type increase boost pressure level quicker!!
Reduce exhaust back pressure reduces load on engine
and stabilized performance!!
