On September 24, 2024, KINTO’s aftermarket optional service “UPGRADE SELECTIONS by KINTO FACTORY” introduced a new “Quietness Improvement Package” exclusively for the Toyota Noah and Voxy . This is an innovative aftermarket part that improves the interior quietness of the Noah and Voxy, popular family cars.
Noah/Voxy Quietness Improvement Package Overview

Applicable models and prices
- Affected vehicles : Toyota Noah/Voxy (produced after January 2022)
- Applicable grades : All 7-seater grades (excluding welfare vehicles)
- Price : 49,500 yen (manufacturer’s warranty included)
- Installation location : Toyota and Lexus authorized dealers nationwide
Designed with innovative acoustic analysis technology
This quietness improvement package was developed using Toyota’s full-vehicle acoustic analysis technology . The most effective areas for improving quietness were scientifically selected, and unique soundproofing materials were placed around the rear tires .
Effects and benefits of the quietness improvement package

Conversation intelligibility (AI value) improved by 5.9%
It has been proven that installation improves the AI value, which indicates conversation intelligibility in the rear seats, by 5.9% , creating a more comfortable conversation space when traveling with your family.
Effectively blocking noise intrusion routes
Effectively blocks out the main sources of interior noise:
- Road noise
- tire noise
- Wind noise
Improved comfort specifically for rear seats
Unlike typical overall soundproofing measures, this is designed specifically for rear seat comfort , significantly improving the comfort of rear seat passengers when using the car with a family.
Toyota’s “Taste Change Through Technology” Concept
Developer’s Attention to Detail

Miyajima Tadashi, chief of the VC Development Department at Toyota Motor Corporation’s Car Development Center, describes this product as “a change in flavor through technology.”
“Just like you can enjoy a change in flavor by adding kelp vinegar to mixed soba noodles halfway through, there are ways to enjoy changing flavors with car technology as well.”
The car as a place for creating family memories
Chief Engineer Miyajima said, “A car is not just a means of transportation, but a place where family memories are created,” and emphasized the importance of deliberately adjusting the balance of existing vehicles to improve rear seat comfort .
Installation and after-sales service
Reliable construction system
- Installation at authorized Toyota and Lexus dealers
- Peace of mind with manufacturer’s warranty
- Careful work by skilled technicians
Future developments expected
KINTO FACTORY plans to expand its diverse “flavor change” proposals to vehicles other than the Noah and Voxy, so we can expect to see retrofit upgrades for many more Toyota, Lexus, and GR brand vehicles.
Summary: The new evolution of the family car
The Toyota Noah/Voxy quietness improvement package is an innovative service that allows existing owners to upgrade their car’s comfort after purchase . At an affordable price of 49,500 yen, it’s a very attractive investment that will make traveling with your family more comfortable.
In addition to the basic performance of a family car, this package delivers a premium interior space through improved quietness based on scientific acoustic analysis , making it an upgrade option well worth considering for Noah and Voxy owners.
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