Blanking plugs for the swirl flaps on the intake manifold for Hyundai and Kia 1.7 CRDI Euro 5 engines

Swirl flaps are components used in diesel engines whose primary function is to introduce turbulence into the airflow entering the combustion chamber in order to improve combustion efficiency. Unfortunately, these flaps have many drawbacks.
   First, swirl flaps are engine components that are subject to heavy wear and are prone to failure. Their failure can lead to serious engine performance issues, such as a loss of power, noise, or vibration.
   Second, swirl flaps, even when open, significantly restrict airflow, which creates additional resistance and reduces combustion efficiency. In particular, when an engine is modified to increase power and torque, swirl flaps become a major limitation on engine performance.
   Finally, swirl flaps are also expensive to repair or replace. Removing them and replacing them with plugs is a popular modification among automotive enthusiasts who want to boost their engine’s performance and avoid costly repairs.

Application:

HYUNDAI (Euro 5 emissions standard)
TUCSON
TUCSON (TL, TLE)
1.7 CRDi D4FD June 2015 – September 2020 85 kW 116 KM
i40
i40 I (VF)
            1.7 CRDI D4FD Oct 2012 – May 2019 103 kW 140 KM
1.7 CRDi D4FD Mar 2012 – May 2019 100 kW 136 KM
1.7 CRDi D4FD March 2012 – May 2019 85 kW 116 KM
1.7 CRDi D4FD January 2015 – May 2019 104 kW 141 KM
i40 I CW (VF)
1.7 CRDi D4FD Jan 2015 – May 2019 104 kW 141 KM
1.7 CRDi D4FD Jul 2011 – May 2019 100 kW 136 KM
1.7 CRDi D4FD July 2011 – May 2019 85 kW 116 KM
ix35
ix35 (LM, EL, ELH) 
            1.7 CRDi D4FD 2010/11 - 2015/12 85 kW 116 KM

KIA (Euro 5 emissions standard)
CARENS
CARENS IV
1.7 CRDi D4FD March 2013 – August 2016 100 kW 136 KM
1.7 CRDi D4FD July 2015 - 2016/08 104 kW 141 KM
1.7 CRDi D4FD 2013/03 - 2016/08 85 kW 116 KM
1.7 CRDi D4FD 2013/03 - N/A 99 kW 135 KM
OPTIMA
OPTIMA (FSGDS6B)
1.7 CRDi D4FD March 2012 – December 2015 100 kW 136 KM
OPTIMA (JF)
1.7 CRDi D4FD November 2015 – April 2018 104 kW 141 KM
OPTIMA Sportswagon (JF)
1.7 CRDi D4FD September 2016 – April 2018 99 kW 135 KM
1.7 CRDi D4FD September 2016 – April 2018 104 kW 141 KM
SPORTAGE
SPORTAGE III (SL)
1.7 CRDi D4FD Dec. 2010 – Dec. 2015 85 kW 116 KM
SPORTAGE IV (QL, QLE) 
            1.7 CRDi D4FD September 2015 – September 2022 85 kW 116 KM
1.7 CRDi D4FD November 2016 – September 2022 104 kW 141 KM

Replacement Part Numbers

    89573 ARTNR_Z_TCD
7519573 HOFFER
89573 MEAT&DORIA
88.575 SIDAT

OE manifold part numbers

    283102A802 HYUNDAI
283102A803 HYUNDAI
283102A804 HYUNDAI
283102A760 KIA
283102A803 KIA
283102A804 KIA

Installing the kit requires removing (disabling/deactivating) the control unit by making changes to the main ECU software.

Installing the kit requires plugging the exhaust gas recirculation valve

Kit contents:

Manifold plugs: 4 pcs. 

Technical Specifications:

Plugs made of plastic
Perfect dimensional consistency.
Polish product. - Manufacturer: ADITECH 

Aditech Sp. z o.o. assumes no liability for the use of this part on public roads where the removal of emission control devices is prohibited. It is the customer’s responsibility to ensure compliance with the rules and regulations applicable in their home country. For use in motorsports off public roads.

This kit replaces worn swirl flaps in the intake manifold of 1.7 CRDi D4FD Euro 5 engines in Hyundai and Kia vehicles. You receive 4 plastic plugs manufactured by ADITECH, part number AT-KZ-N002, EAN 5905325866285, compatible with OE manifolds 283102A802, 283102A803, 283102A804, and 283102A760.

Installation requires disabling the control in the ECU and plugging the EGR valve.

What do intake manifold flaps do, and where are they located?

Intake manifold flaps are movable partitions inside the intake manifold, just before the intake ports. In the 1.7 CRDi diesel engine, they create air turbulence, which aids combustion under partial load.

A worn mechanism causes a loss of power, noise, and vibrations, and the flaps continue to restrict airflow even when open. That’s why removing them and replacing them with fixed plugs is a common modification in sports cars and vehicles used off-road.

What’s included in the kit, and how can you tell if it’s high quality?

The ADITECH kit contains exactly 4 plastic intake manifold plugs. Each component is lightweight, and the absence of moving parts eliminates sources of rattling and play.

The quality of this type of part is determined by dimensional compatibility with the OE intake manifold, material stability, and manufacturing consistency. The automated manufacturing process helps maintain uniform dimensions across individual pieces, which makes it easier to install the set.

This set includes:

• 4 intake manifold plugs
• plastic components with consistent dimensions
• compatibility with OE intake manifolds 283102A802, 283102A803, 283102A804, 283102A760
• Compatible with replacement parts 89573, 7519573, ARTNR_Z_TCD, and 88.575
• Compatible with Hoffer 7519573, Meat& Doria 89573, and Sidat 88.575
• Polish product by ADITECH

Which models does it fit, and what should you keep in mind during installation?

The kit is compatible only with 1.7 CRDi D4FD engines that meet the Euro 5 standard. It’s best to confirm compatibility using the manifold number, as engine power alone isn’t always sufficient.

The kit also fits the Kia Sportage 1.7 CRDi in generations III and IV. The list of compatible models includes:

• Hyundai Tucson TL/TLE 2015/06–2020/09, 85 kW / 116 KM
• Hyundai i40 VF 2012/03–2019/05, 85–104 kW / 116–141 KM
• Hyundai i40 CW VF 2011/07–2019/05, 85–104 kW / 116–141 KM
• Hyundai ix35 LM, EL, ELH 2010/11–2015/12, 85 kW / 116 KM
• Kia Carens IV 2013/03–2016/08, 85–104 kW / 116–141 KM and 2013/03–N/A, 99 kW / 135 KM
• Kia Optima FSGDS6B 2012/03–2015/12, 100 kW / 136 KM
• Kia Optima JF 2015/11–2018/04, 104 kW / 141 KM
• Kia Optima Sportswagon JF 2016/09–2018/04, 99–104 kW / 135–141 KM
• Kia Sportage III SL 2010/12–2015/12, 85 kW / 116 KM
• Kia Sportage IV QL, QLE 2015/09–2022/09, 85–104 kW / 116–141 KM

Installation requires removing the flaps, disabling the control unit in the ECU, and plugging the EGR valve. If you experience a loss of power, vibrations, or rattling coming from the intake manifold area, check the condition of the mechanism first. This part is intended for motorsports and off-road use, as the removal of emission control systems on public roads is prohibited.

FAQ

Does installing the plugs require modifications to the ECU and the EGR system?

Yes. Installation involves removing the moving flaps, installing the plugs, disabling the control module in the ECU, and plugging the EGR valve; without these steps, error codes and the check engine light may occur.

Which manifold part numbers is this kit compatible with?

The ADITECH AT-KZ-N002 kit is compatible with OE manifolds 283102A802, 283102A803, 283102A804, and 283102A760; replacement parts 89573, 7519573, ARTNR_Z_TCD, and 88.575 are also listed.

Can plug-ins be used on a vehicle driven on public roads?

They are often installed in sports cars and off public roads. Removing emission control systems (EGR, etc.) on public roads is prohibited and may result in legal consequences.