Mazda FE-DOHC engine and Mazda B engine family of inline-four engines, and Variable Resonance Induction System (VRIS) in the Mazda K engine family of V6 engines. An updated version of this technology is employed on Mazda's new Z and L engines, which is also used by Ford as the Duratec. Mercedes-Benz — V6 M112, V6 M272, V8 AMG M156 MG — ZT 190, 180, 160 (2001-2005), ZS 180 (2001-2005) Mitsubishi — Mitsubishi Variable Induction Management (MVIM) 1991-1999 3000GT NA DOHC, 2003-2005 Eclipse Nissan — inline-four engines, V6 engines, V8 engines Opel — TWINPORT – modern versions of Ecotec Family 1 and Ecotec Family 0 inline-four engines and inline-three engines; a similar technology is used in 3.2-litre 54° V6 engine. Peugeot — 2.2-litre inline-four engine, 3.0-litre V6, 2.0 16v XU10J4 engine (non /z version) Porsche — 928 "flappy", VarioRam, 964, 993, 996, Boxster Proton — Campro CPS and VIM, Proton Gen-2 CPS and Proton Waja CPS; Proton Campro IAFM - 2008 Proton Saga 1.3 Renault — Clio 2.0 RS Roewe — Variable Geometry Induction: Roewe 750 2.5 (2006–present). Rover — Variable Geometry Induction: Rover 825 (1996-1999), Rover 75 V6 (1998-2005) Subaru – Subaru Legacy Japan only using EJ204 (version D) 2.0 Litre, Naturally aspirated engine Suzuki – VIS Toyota — Toyota Variable Induction System (T-VIS), used in the early versions of the 1G-GEU, 3S-GTE, 3S-GE, and 4A-GE families, and Acoustic Control Induction System - (ACIS). Volkswagen — 1.6-litre inline-four engine, V6 engines, VR5 engines, VR6 engines, W8 engines, V8 engines Volvo — V-VIS (Volvo Variable Induction System) Volvo B52 engine as found on the Volvo 850. Longer inlet ducts used between 1,500 and 4,100 rpm at 80% load or higher. References Engine technology