Why Mazda had to rush to reduce noise in the Miata.

Mazda was forced to reduce noise levels in the Miata so that this legendary roadster could qualify for sale in Japan starting in early July.

According to Motor1 , Mazda has previously confirmed it is urgently developing a new generation of the Miata. The current ND generation has been on the market for nearly 12 years, undergoing numerous technical upgrades as well as other special editions.

In 2026, Mazda will continue to make adjustments to this roadster model. The latest series of changes is simply aimed at ensuring the Miata can meet noise standards and qualify for sale in the Japanese domestic market. The latest regulations have forced engineers to "reduce noise" in the Miata, equipping it with quieter tires and a larger muffler.

With the hardtop version of the Miata, the large exhaust system creates space constraints, forcing Mazda to reduce the depth of the already rather small rear luggage compartment.

Additional modifications to the intake system help the two-door sports car meet external noise requirements during operation.

Without these changes, Mazda would not be able to sell the Miata in Japan from July onwards – the time when Stage 3 noise regulations come into effect in Japan, aligning with the international R51-03 regulation for all vehicles.

You may also like

Europe is striving to turn used cars into a strategic "resource".According to new European regulations, car manufacturers will have to optimize vehicle structures to facilitate component recycling, and all new cars leaving the factory must contain a minimum of 15% recycled plastic.

The Alexa+ AI-integrated experience: An impressive leap forward or a confident liar?Amazon has upgraded Alexa+ with artificial intelligence to make communication more natural, but this comes with the risk of information "illusions" and demanding new hardware requirements.

Resident Evil Requiem releases patch 1.3.1: Difficulty adjustments and survival skill upgrades.Capcom has just released update 1.3.1 for Resident Evil Requiem to balance the Leon Must Die Forever mode, reduce pressure on players in the early stages, and enhance skill power.

These rules lower the maximum acceptable noise level to 68-72 dB, with the specific limit depending on the vehicle's power-to-weight ratio. Previously, Stage 2 allowed noise levels of 70-74 dB, while Stage 1 permitted cars in Japan to be as noisy as 72-75 dB.

Mazda also confirmed that the Miata sold in Japan will have a special Pure Sport (PS) edition, using a 1.5L engine, which is smaller than the standard Miata. This edition combines a grey roof with a Zinc Green Metallic exterior paint, and comes with 16-inch black Rays wheels. Brembo brakes with silver calipers and Bilstein shock absorbers are standard equipment.

The Miata PS version features seats upholstered in a faux suede fabric, black trim around the start button and climate control knobs. The edges of the air vents are also finished in a glossy dark brown.

Since the first NA generation debuted in 1989, Mazda has sold over 1.26 million Miatas to customers worldwide, and the rear-wheel-drive compact convertible sports car remains the undisputed leader in its segment. However, the new noise standards serve as a reminder that all vehicles must comply with these stringent regulations, even those in niche segments.

United States - Vietnam: Don't miss

Vietnam encourages US businesses to expand investment in high technology.On the morning of June 26th, at the Government Headquarters, Deputy Prime Minister Ho Quoc Dung received Mr. Jeff Place, Supply Chain Director of Coherent Group (USA). During the meeting, the Deputy Prime Minister affirmed that Vietnam encourages US businesses to expand investment, especially in high-tech, innovation, and semiconductor industries.

Encourage U.S. businesses to expand investment in high-tech sectors.Deputy Prime Minister Ho Quoc Dung said that Vietnam welcomes US businesses to continue expanding their operations in Vietnam, especially in high-tech industries and sectors with high added value.

Vietnam and the United States strengthen cooperation in addressing the consequences of war.VTV.vn - On June 22, General Secretary and President To Lam received Acting Secretary of the US Navy Hung Cao.

Source: https://znews.vn/ly-do-mazda-phai-gap-rut-giam-on-cho-miata-post1663944.html