AUBURN HILLS, Mich., Nov. 14, 2025/ PRNewswire/– Marelli, a worldwide movement innovation provider to the automobile sector, has actually gotten the distinguished Developments in Lightweighting Award by SAA, the Society of Automotive Experts, for its “ LeanExhaust” system. The honor existed throughout the 9th Yearly Products Development Top kept in Auburn Hills, Michigan, on November 13, 2025
The SAA Innovations in Lightweighting Award acknowledges providers for ingenious items and innovations that supply either direct or indirect mass cost savings, in line with the automobile market’s push for sustainability and effectiveness.
Marelli’s LeanExhaust is a compact, light-weight and economical exhaust system that has actually been established to satisfy carmakers’ need for weight and volume decrease in lorries with Internal Combustion Engines, consisting of hybrids. The option accomplishes a total weight decrease of 16 kg compared to traditional exhaust systems, while going beyond or matching noise-reduction and emissions-control efficiency. It allows a 52% decline in carbon emissions through style and procedure enhancement compared to exhaust systems presently in production, which equates to an 85 kg cost savings in CO2 for a common lorry for each exhaust system.
The system integrates 2 ingenious modular parts, a dual-layer converter and a micro-hole style muffler, each adding to the total decrease in weight and volume.
The innovative architecture of the dual-layer converter integrates a three-way catalytic converter and gas particle filter in one compact bundle, minimizing the total weight of that element by 45% and its volume by 46%. It likewise permits the driver to quickly reach perfect operating temperature level following a cold-start and to preserve temperature level throughout electrical drive with an engine stop, while concurrently fulfilling the thermal and noise-reduction requirements of hybrid or EV systems.
The micro-hole style muffler utilizes a micro-perforated main tube with a series of baffle plates, removing the requirement for non-recyclable glass wool utilized in traditional mufflers. This lowers weight by approximately 27% and volume by approximately 15%, while attaining comparable air flow noise-reduction efficiency and making it possible for making use of long lasting, thinner-gauge stainless-steel.
By combining parts and leveraging innovative products and architecture, LeanExhaust provides a streamlined and easy-to-adapt option, that is anticipated to regularly bring expense savings over traditional systems. This remains in line with Marelli’s platform method, which offers car manufacturers an extremely pre-developed innovation base that can be tailored by them according to their requirements; this assists them decrease advancement time and expense, while fulfilling varied customer requirements. In specific, the “ Lean” platforms consist of less parts and are created to be fit-for-purpose, sustainable, available and launch-ready.
” We are genuinely honored to get the Innovations in Lightweighting Award for our ‘LeanExhaust’ platform. This acknowledgment is a testimony to the commitment and imagination of the whole group in Marelli’s Green Technologies company, who continue to challenge the borders of sustainable movement” mentioned Shuji Kobayashi, President of Marelli’s Green Technologies company. “ LeanExhaust sets a brand-new standard in exhaust system style and production. Through its advancement dual-layer converter and micro-hole style muffler, the system provides considerable weight cost savings of 16 kg over traditional options, with impressive efficiency for emissions decrease, sound control, and total resilience. The system likewise improves recyclability, providing our clients a really future-ready option.”
At the SAA Innovations in Lightweighting Awards, Marelli was likewise acknowledged with an “Respectable Reference” for its hybrid suspension system with electromechanical actuators. This Completely Active Hybrid Suspension System consists of 2 actuators to manage front-end lorry characteristics, while the rear wheels are linked to 2 semi-active shock absorbers. By incorporating active electromechanical control on the front axle– which bears the majority of the vibrant load throughout braking and cornering– the system targets the most crucial axis for lorry characteristics. Compared to hydraulic systems with comparable performances, it contributes a 57% weight conserving without any decrease in performance or efficiency.
About Marelli
Marelli is a worldwide movement innovation provider to the automobile sector. With a strong and recognized performance history in development and production quality, our objective is to change the future of movement through dealing with clients and partners to develop a more secure, greener, and better-connected world. With around 40,000 staff members worldwide, the Marelli footprint consists of over 150 websites internationally.
Picture – https://mma.prnewswire.com/media/2823438/Marelli_Photo_1.jpg
Picture – https://mma.prnewswire.com/media/2823439/Marelli_Photo_2.jpg
SOURCE Marelli