Your trusted source of JDM parts shipped direct from Japan

Your trusted source of JDM parts shipped from Japan

JDM parts shipped direct from Japan

United States / USD
Select your country and currency for personalised pricing & shipping options: Select to personalise your pricing & shipping options: Your country & currency:

HKS Extension Kit

The HKS Extension Kit is designed & developed to maximise turbo outlet flow and therefore boost and engine performance for high performance engine

The HKS Extension Kit is designed & developed to maximise turbo outlet flow and therefore boost and engine performance for high performance engines.

Features

This extension kit improves the turbine efficiency & performance to eliminate a sudden loss in engine power. This is achieved by separating the the main & bypass manifolds, and thus eliminating any exhaust interferences due to back pressure from the exhaust flow. This enable the factory turbine to perform efficiently since the loss happened nearer to the flange extension. This means the exhaust flow collector is attached to the lower portion where back pressures & exhaust flow interference are low. This also minimizes the exhaust flow resistance by expanding the size of the main manifold immediately after the turbine exit. This resulted in prevention of secondary back pressure and enable a stable forced induction pressure which will see improved engine power.

The use of high quality stainless steel material in the extension kit's construction provides superior heat resistance, corrosion resistant, reliability, and durability.

Vehicle Product Main Diameter Bypass Diameter   Price Order
GT-R - R35
14018-AN004
USD $ 664.97
USD $ 785.08
Product   Order
GT-R - R35
14018-AN004
USD $ 664.97
USD $ 785.08

Vehicle Product Main Diameter Bypass Diameter   Price Order
Skyline - R33 GTS-t - ECR33
RB25DET Series 2 1995/1-1998/5
1418-RN010
65mm 60mm
USD $ 259.51
USD $ 306.37
Skyline - R34 25GTT - ER34
RB25DET
1418-RN010
65mm 60mm
USD $ 259.51
USD $ 306.37
Product   Order
Skyline - R33 GTS-t - ECR33
RB25DET Series 2 1995/1-1998/5
Main Diameter: 65mm
Bypass Diameter: 60mm
1418-RN010
USD $ 259.51
USD $ 306.37
Skyline - R34 25GTT - ER34
RB25DET
Main Diameter: 65mm
Bypass Diameter: 60mm
1418-RN010
USD $ 259.51
USD $ 306.37

Vehicle Product Main Diameter Bypass Diameter Price Order
Skyline GT-R - BCNR33
not GTIII Sports Turbo Kit
1418-RN005
2x60.5mm 2x38mm
USD $ 551.43
USD $ 651.05
Skyline GT-R - BNR32
not GTIII Sports Turbo Kit
1418-RN005
2x60.5mm 2x38mm
USD $ 551.43
USD $ 651.05
Skyline GT-R - BNR34
VSpec - not GTIII Sports Turbo Kit
1418-RN011
2x60.5mm 2x38mm
USD $ 551.43
USD $ 651.05
Skyline GT-R - BNR34
not GTIII Sports Turbo Kit
1418-RN005
2x60.5mm 2x38mm
USD $ 551.43
USD $ 651.05
Product Order
Skyline GT-R - BCNR33
not GTIII Sports Turbo Kit
Main Diameter: 2x60.5mm
Bypass Diameter: 2x38mm
1418-RN005
USD $ 551.43
USD $ 651.05
Skyline GT-R - BNR32
not GTIII Sports Turbo Kit
Main Diameter: 2x60.5mm
Bypass Diameter: 2x38mm
1418-RN005
USD $ 551.43
USD $ 651.05
Skyline GT-R - BNR34
VSpec - not GTIII Sports Turbo Kit
Main Diameter: 2x60.5mm
Bypass Diameter: 2x38mm
1418-RN011
USD $ 551.43
USD $ 651.05
Skyline GT-R - BNR34
not GTIII Sports Turbo Kit
Main Diameter: 2x60.5mm
Bypass Diameter: 2x38mm
1418-RN005
USD $ 551.43
USD $ 651.05

Vehicle Product Main Diameter Bypass Diameter   Price Order
Stagea - WC34
RB25DET
1418-RN010
65mm 60mm
USD $ 259.51
USD $ 306.37
Product   Order
Stagea - WC34
RB25DET
Main Diameter: 65mm
Bypass Diameter: 60mm
1418-RN010
USD $ 259.51
USD $ 306.37

Vehicle Product Main Diameter Bypass Diameter   Price Order
Lancer Evolution IX - CT9A
14018-AM001
60mm 58mm
USD $ 608.20
USD $ 718.07
Lancer Evolution VII - CT9A
14018-AM001
60mm 58mm
USD $ 608.20
USD $ 718.07
Lancer Evolution VIII - CT9A
14018-AM001
60mm 58mm
USD $ 608.20
USD $ 718.07
Lancer Evolution X - CZ4A
14019-AM002
62mm 65mm
USD $ 632.53
USD $ 746.79
Product   Order
Lancer Evolution IX - CT9A
Main Diameter: 60mm
Bypass Diameter: 58mm
14018-AM001
USD $ 608.20
USD $ 718.07
Lancer Evolution VII - CT9A
Main Diameter: 60mm
Bypass Diameter: 58mm
14018-AM001
USD $ 608.20
USD $ 718.07
Lancer Evolution VIII - CT9A
Main Diameter: 60mm
Bypass Diameter: 58mm
14018-AM001
USD $ 608.20
USD $ 718.07
Lancer Evolution X - CZ4A
Main Diameter: 62mm
Bypass Diameter: 65mm
14019-AM002
USD $ 632.53
USD $ 746.79
Yes! We ship to the United States and 150 other countries worldwide!

Add parts to your shopping cart and begin checkout to select from Japan Post EMS & ePacket, Fedex, DHL and more shipping options.

Best Price Guarantee

If you're able to find a better price shipped from Japan contact us and we'll beat it, all fees included.

Associated JDM Parts

On Sale
APEXi - Exhaust Control Valve

APEXiExhaust Control Valve

from USD $ 50.87
On Sale
In Stock
APEXi - Power FC & EL Hand Controller Set
On Sale
In Stock
APEXi - Power FC D-Jetro - Complete Kit
On Sale
ATS - Carbon Clutch - Single Plate

ATSCarbon Clutch - Single Plate

from USD $ 1,184.81
On Sale
In Stock
Bee R - Rev Limiter

Bee RRev Limiter

from USD $ 216.96
Universal
On Sale
Blitz - SBC Type R Boost Controller
On Sale
Bride - Stradia II - Japan - Venus
On Sale
ChargeSpeed - RX7 wide Body kit

About Nengun Performance

Since the year 2000, Nengun Performance has supplied over 100,000 parts direct from Fukuoka, Japan to 150 countries worldwide. If you have any questions, our experienced and friendly customer service team is always happy to help, please send us an enquiry.

Nengun Performance, shipping JDM direct from Japan