SKU: 30950460084

JB4 EWG Add On Connectors for Kia Stinger 3.3T, G70, Infiniti VR30 Q50 Q60, Mazda 2.5T

Sale price$1524.60 Regular price$1694.00
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Ships within 48 hours · Estimated delivery Aug 8 - Aug 13

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Description

JB4 EWG Add On Connectors for Kia Stinger 3.3T, G70, Infiniti VR30 Q50 Q60, Mazda 2.5TThe new EWG connections allow the JB4 to directly add and subtract wastegate duty cycle (WGDC) from the wastegates providing additional tuning flexibility. Most useful for modified vehicles that are having problems targeting boost properly and will also improve boost response, spool up, shifting performance, and overall feel. Installation involves plugging the wires in to the JB4 harness, updating the JB4 firmware and settings, and attaching them to

The new EWG connections allow the JB4 to directly add and subtract wastegate duty cycle (WGDC) from the wastegates providing additional tuning flexibility. Most useful for modified vehicles that are having problems targeting boost properly and will also improve boost response, spool up, shifting performance, and overall feel.

Installation involves plugging the wires in to the JB4 harness, updating the JB4 firmware and settings, and attaching them to the wastegates which are relatively easy to reach from the engine bay.

Note JB4 models shipped prior to Oct, 2019 may also require an updated 2580 master chip (available here) if EWG wires trigger a startup fault code that clears until restarted.

Click here for installation directions and discussion

JB4 EWG Features & Benefits

• Provides additional tuning flexibility
• Directly controls the wastegates

• Improves boost response
• Turbo spool up
• Shifting performance
• Overall feel

Installation involves plugging the wires in to the JB4 harness, updating the JB4 firmware and settings, and attaching them to the wastegates which are relatively easy to reach from the engine bay.

Download install guides

Kia Stinger/G70 and Infiniti VR30 Q50/Q60

Mazda 2.5T V2

Shipping Notes
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Exchange/Return Notes
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  • Final sale items are not eligible for returns or exchanges.
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SKU: 30950460084

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Ashley Wise
Port Orchard, US
★★★★★ 5
I will keep buying these
Size: 3 Big Kid, Color: Black Orange, Size: 3 Big Kid, Color: Black Orange
This is the third time I have purchased these shoes. Every time my son grows out of them I buy the next size up. His favorite color is orange, so he loves the look of these. They are also soft mesh around the toes, which he loves so he can wiggle his toes. These are durable and well made. The pair i purchased before these is still wearable, just too small for him now. These are his daily shoes. The price has gone up since my first purchase, but they still are not unreasonable for how long they last. He is an active boy. He climbs trees, runs, and plays hard. So for any show to last 6 months when he wears them daily it shows the durability. It also shows that these shoes have tread on them thay stops him from slipping. He is able to move around freely and never has issues with grip. He puts them on without difficulty.
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Reviewed in the United States on March 17, 2026
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Willow
Omaha, US
★★★★★ 5
A grandmothers choice
Size: 4 Big Kid, Color: Pink B
Good fit. Good price. Good quality.
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Reviewed in the United States on May 29, 2026
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Julie Carroll
San Leandro, US
★★★★★ 5
Solid choice for active children
Size: 12 Little Kid, Color: Purple B, Size: 12 Little Kid, Color: Purple B
Happy with this purchase so far. Our 5 year old loves them, they are easy for her to put on by herself. The material seems to be of good quality and made to last.
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Reviewed in the United States on May 12, 2026
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Outdoors_WI
Houston, US
★★★★★ 5
Comfortable, Durable, and Perfect for Active Kids
I recently purchased the Under Armour Kids' Grade School Assert 10 Sneakers for my child, and they are excellent! These sneakers are lightweight yet supportive, making them perfect for everyday wear, sports, and outdoor activities. The breathable mesh upper keeps feet cool, while the cushioned midsole provides comfort and shock absorption during running or play. The sneakers also have a durable rubber outsole that provides excellent traction, reducing the risk of slips during active play. The sleek design and modern style appeal to kids, and the shoes fit true to size, making them easy to wear for extended periods. Overall, the Assert 10 combines comfort, durability, and style, making it a reliable choice for active kids. They hold up well after repeated wear and are easy to clean, making them a great value for parents. Pros: Lightweight, breathable mesh upper Cushioned midsole for comfort and shock absorption Durable rubber outsole with good traction Sleek and modern design appealing to kids True-to-size fit and easy to clean Cons: Minimal color options in some sizes Laces may require supervision for younger children Overall: The Under Armour Kids' Grade School Assert 10 Sneakers are comfortable, durable, and stylish, perfect for active kids who need reliable everyday footwear. Highly recommended!
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Reviewed in the United States on September 22, 2025
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Dinara
Phoenix, US
★★★★★ 5
Great quality
Size: 5 Big Kid, Color: (105) Mod Gray/Black/High Vis Yellow
Only these sneakers could withstand the wear and tear of kids on the tennis courts. Excellent quality, sufficiently wide, and a great price.
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Reviewed in the United States on April 15, 2026

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