{"product_id":"renntech-ecu-hand-held-tuner-2007-2012-mercedes-benz-gl-450-x164","title":"RennTech ECU Hand Held Tuner 2007-2012 Mercedes-Benz GL 450 X164","description":"\u003cp\u003eRennTech built its name in Florida tuning high-performance engines, and this ECU Hand Held Tuner for the 2007-2012 GL 450 is the result of in-house dyno development on the 4.7L M273 V8. Timing, throttle, air-fuel and boost tables are revised as one calibration, so the car pulls harder everywhere while staying a comfortable daily driver. RennTech rates the car at 402 hp and 405 lb-ft with this upgrade. That is a gain of 20 hp and 14 lb-ft.\u003c\/p\u003e\u003ch3\u003eKey details\u003c\/h3\u003e\n\u003cp\u003eThis hand-held tuner for the X164 GL 450 adds 20 hp and 14 lb-ft. RennTech has tuned Mercedes engine computers since they appeared in the mid-1980s, and the gains cover the whole rev range.\u003c\/p\u003e\u003ch3\u003eWatch it explained\u003c\/h3\u003e\u003cdiv style=\"position:relative;padding-bottom:56.25%;height:0;overflow:hidden;margin:8px 0 16px\"\u003e\u003ciframe src=\"https:\/\/www.youtube-nocookie.com\/embed\/dGTikm51Bd4\" title=\"RennTech product video\" style=\"position:absolute;top:0;left:0;width:100%;height:100%;border:0\" allow=\"accelerometer; encrypted-media; gyroscope; picture-in-picture\" allowfullscreen loading=\"lazy\"\u003e\u003c\/iframe\u003e\u003c\/div\u003e\u003ch3\u003eFeatures\u003c\/h3\u003e\u003cul\u003e\n\u003cli\u003eRevised ignition timing, throttle mapping, air-fuel ratios and boost control\u003c\/li\u003e\n\u003cli\u003eGains across the entire rev range, not just at peak\u003c\/li\u003e\n\u003cli\u003eDeveloped on RennTech's own dyno and road tested\u003c\/li\u003e\n\u003cli\u003eKeeps factory-like drivability and reliability for daily use\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch3\u003eWhat is included\u003c\/h3\u003e\u003cul\u003e\n\u003cli\u003eRennTech calibration for your car\u003c\/li\u003e\n\u003cli\u003eDelivery as listed by RennTech for this model (HHT tuner or ECU flash)\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch3\u003eSpecs\u003c\/h3\u003e\u003ctable style=\"border-collapse:collapse\"\u003e\n\u003ctr\u003e\n\u003ctd style=\"padding:4px 12px 4px 0\"\u003e\u003cstrong\u003ePart number\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e54.164.GL450\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"padding:4px 12px 4px 0\"\u003e\u003cstrong\u003eEngine\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e4.7L M273 V8\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"padding:4px 12px 4px 0\"\u003e\u003cstrong\u003eRated output\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e402 hp \/ 405 lb-ft\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"padding:4px 12px 4px 0\"\u003e\u003cstrong\u003eGain\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e+20 hp \/ +14 lb-ft\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"padding:4px 12px 4px 0\"\u003e\u003cstrong\u003eShipping weight\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e2 lb\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/table\u003e\u003ch3\u003eFitment notes\u003c\/h3\u003e\u003cp\u003eFitment is as listed by RennTech for this part number. Your VIN is required with the order.\u003c\/p\u003e\u003ch3\u003eFitment\u003c\/h3\u003e\u003ctable style=\"width:100%;border-collapse:collapse;margin-top:12px\"\u003e\n\u003cthead\u003e\u003ctr style=\"background:#03589c;color:#fff\"\u003e\n\u003cth style=\"padding:8px;text-align:left\"\u003eMake\u003c\/th\u003e\n\u003cth style=\"padding:8px;text-align:left\"\u003eModel\u003c\/th\u003e\n\u003cth style=\"padding:8px;text-align:left\"\u003eChassis\u003c\/th\u003e\n\u003cth style=\"padding:8px;text-align:left\"\u003eYear\u003c\/th\u003e\n\u003cth style=\"padding:8px;text-align:left\"\u003eEngine\u003c\/th\u003e\n\u003c\/tr\u003e\u003c\/thead\u003e\n\u003ctbody\u003e\u003ctr style=\"background:#e8f4f8\"\u003e\n\u003ctd style=\"padding:8px;border-top:1px solid #fff\"\u003eMercedes-Benz\u003c\/td\u003e\n\u003ctd style=\"padding:8px;border-top:1px solid #fff\"\u003eGL 450\u003c\/td\u003e\n\u003ctd style=\"padding:8px;border-top:1px solid #fff\"\u003eX164\u003c\/td\u003e\n\u003ctd style=\"padding:8px;border-top:1px solid #fff\"\u003e2007-2012\u003c\/td\u003e\n\u003ctd style=\"padding:8px;border-top:1px solid #fff\"\u003e4.7L M273 V8\u003c\/td\u003e\n\u003c\/tr\u003e\u003c\/tbody\u003e\n\u003c\/table\u003e","brand":"RennTech","offers":[{"title":"Default Title","offer_id":68064005849239,"sku":"54.164.GL450","price":1445.3,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/2641\/0682\/files\/renntech_hht_00256_8ec506b5-956e-4558-a162-267db632c6b1.jpg?v=1792120839","url":"https:\/\/autotalent.com\/products\/renntech-ecu-hand-held-tuner-2007-2012-mercedes-benz-gl-450-x164","provider":"AutoTalent","version":"1.0","type":"link"}