{"product_id":"ecu-upgrade-performance-tuning-module","title":"ECU Upgrade Performance Tuning Module","description":"The RENNtech Performance ECU Upgrade, utilizing the HHT (handheld tuner) system, offers a seamless way to enhance your Mercedes-Benz W211 E350. This module allows for unlimited switching between the RENNtech tuned file and your vehicle's original stock file, eliminating the need to remove the ECU. Simply plug the module into your OBD2 port, and the programming process takes only a few minutes. You can reflash your vehicle as many times as you desire.\n\nBy precisely adjusting ignition timing, throttle mapping, and air\/fuel ratios, and by increasing the engine's rev limiter and optimizing boost mapping for turbocharged models, this upgrade unlocks your Mercedes' latent performance capabilities. The result is an exhilarating driving experience with noticeable improvements in acceleration and responsiveness.\n\nThe stock performance of the Mercedes-Benz W211 E350 is rated at 268 HP and 258 LB-FT of torque. After installation of the RENNtech ECU Upgrade, modified performance is stated to reach 290 HP and 278 LB-FT of torque. This represents an increase of +22 HP and +20 LB-FT.\n\nThis ECU upgrade is specifically designed for the 2003 through 2009 Mercedes-Benz W211 E350 models.","brand":"RENNtech","offers":[{"title":"Default Title","offer_id":52689365205304,"sku":"54.211.E350","price":995.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0970\/4895\/3144\/files\/687606713.webp?v=1784905697","url":"https:\/\/store.motormia.co\/products\/ecu-upgrade-performance-tuning-module","provider":"MOTORMIA","version":"1.0","type":"link"}