{"product_id":"renntech-hand-held-tuner-ecu-upgrade-for-gls-600-maybach-x167-m177-4-0l-v8-biturbo-4matic-93-octane-only-see-state-restriction","title":"RENNtech Hand-Held Tuner ECU+ Upgrade for GLS 600 Maybach | X167 | M177 4.0L V8 Biturbo  | 4MATIC | 93+ Octane Only","description":"\u003cp class=\"PDq2pG_selectionAnchorContainer\"\u003e\u003cstrong\u003eECU+ Upgrade | Up to 622HP \/ 627 LB-FT | Gains: +63 HP \u0026amp; +49 LB-FT\u003c\/strong\u003e\u003cspan class=\"PDq2pG_selectionAnchor\"\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003eRENNtech HHT (Hand Held Tuner) gives you the ability to switch between tuned and stock ECU programming without removing the ECU from the vehicle.\u003c\/p\u003e\n\u003cp\u003eRENNtech’s proprietary tuning module contains both the tuned file and your vehicle’s original stock file. The module plugs directly into the OBD2 port and delivers the selected calibration directly to the ECU. Programming takes only a few minutes, and the vehicle can be reflashed between the tuned and stock files whenever desired.\u003c\/p\u003e\n\u003cp\u003eWith the proprietary RENNtech ECU+ Upgrade, the \u003cstrong\u003eX167 GLS 600 Maybach | M177 4.0L V8 BiTurbo | 4MATIC\u003c\/strong\u003e can gain up to \u003cstrong\u003e+63 HP\u003c\/strong\u003e and \u003cstrong\u003e+49 LB-FT\u003c\/strong\u003e, based on performance numbers measured by RENNtech.\u003c\/p\u003e\n\u003cp\u003eThe maximum performance achieved with the RENNtech ECU+ Upgrade is:\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003e622 HP @ crank\u003c\/strong\u003e\u003cbr\u003e\u003cstrong\u003e627 LB-FT @ crank\u003c\/strong\u003e\u003c\/p\u003e\n\u003ch3\u003eNotes:\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003e\u003cem\u003eStock and modified performance figures are based on measurements and calculations performed by RENNtech.\u003c\/em\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cem\u003ePower gains are calculated based on the stock performance figures measured by RENNtech.\u003c\/em\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cem\u003ePerformance numbers will vary depending on vehicle condition, environmental conditions and fuel quality.\u003c\/em\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cem\u003e\u003cstrong\u003e93+ Octane gasoline is mandatory\u003c\/strong\u003e with this Performance Upgrade.\u003c\/em\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cem\u003eCertain states are known to have lower fuel quality. Vehicles located in these areas may require a lower-power calibration. Please contact RENNtech for details and available options.\u003c\/em\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cem\u003eState restrictions may apply. Please contact RENNtech before purchasing to confirm availability for your location.\u003c\/em\u003e\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e\u003cstrong\u003eFor questions regarding fuel requirements, state restrictions or available calibrations, please contact RENNtech at +1-561-845-7888.\u003c\/strong\u003e\u003c\/p\u003e\n\u003chr\u003e\n\u003cp\u003e\u003cstrong\u003eGLS 600 Maybach (X167 | M177 | 4.0L V8 BiTurbo | 4MATIC) — Stock Performance\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eRENNtech Stock Crank Performance:\u003c\/strong\u003e 559 HP \/ 582 LB-FT\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e\u003cstrong\u003eGLS 600 Maybach (X167 | M177 | 4.0L V8 BiTurbo | 4MATIC) — RENNtech ECU+ Performance\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eRENNtech Crank Performance:\u003c\/strong\u003e 622 HP \/ 627 LB-FT\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eGain:\u003c\/strong\u003e \u003cstrong\u003e+63 HP \/ +49 LB-FT\u003c\/strong\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"RENNtech Inc","offers":[{"title":"Default Title","offer_id":49184409354496,"sku":"54.167.MM.GLS600","price":3840.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0753\/9972\/5312\/files\/LaborDay_HHT_10off..jpg?v=1787997110","url":"https:\/\/store.renntechmercedes.com\/es\/products\/renntech-hand-held-tuner-ecu-upgrade-for-gls-600-maybach-x167-m177-4-0l-v8-biturbo-4matic-93-octane-only-see-state-restriction","provider":"RENNtech Inc","version":"1.0","type":"link"}