{"product_id":"2008-2009-chevrolet-express-4-8l-5-3l-and-6-0l-custom-tuning","title":"2008-2009 Chevrolet Express 4.8L, 5.3L, and 6.0L Custom Tuning","description":"\u003cp\u003e\u003cspan\u003e\u003cstrong\u003eBlack Bear Performance offers three different levels of custom tuning service for your 2008-2009 Chevrolet Express 4.8L, 5.3L, 6.0L (4-speed)\u003c\/strong\u003e.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003e15-20hp gains are common with 10-20ft-lbs of torque on 89 octane for the 4.8L and 5.3L, while 20-25hp and 25-30ft-lbs gains for the 6.0L. Combine that with improved shift patterns, towing capabilities, throttle response and even fuel economy in many cases and you'll have what feels like a whole new vehicle!\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003eAdditional service offerings include:\u003c\/span\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eTorque Management Modification\/Removal\u003c\/li\u003e\n\u003cli\u003eTire\/Gear Change Calibration\u003c\/li\u003e\n\u003cli\u003eSpeed and Rev Limiter Increase\u003c\/li\u003e\n\u003cli\u003eAccommodation of Most Modifications (Internal engine modifications, superchargers, turbochargers*, upgraded transmissions, etc).\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003eAll 2007+ 5.3Ls owners are \u003cstrong\u003estrongly encouraged\u003c\/strong\u003e to use a minimum of 89 octane at all times due to compression ratio.\u003c\/p\u003e\n\u003cp\u003e\u003cbr\u003e\u003c\/p\u003e\n\u003ch5\u003e*Due to variability in turbocharger systems, they must be evaluated by our tuner prior to committing to any services.  Additional tuning service\/hardware may be required.\u003c\/h5\u003e","brand":"Black Bear Performance","offers":[{"title":"AutoCal Tune \u0026 Hardware [$749] \/ I will mail my ECM and TCM in to be tuned","offer_id":51590840942880,"sku":null,"price":749.0,"currency_code":"USD","in_stock":true},{"title":"Scan Cable [$815] ($400 Refundable Deposit included) \/ I will mail my ECM and TCM in to be tuned","offer_id":51590840975648,"sku":null,"price":815.0,"currency_code":"USD","in_stock":true},{"title":"Traditional [$355] \/ I will mail my ECM and TCM in to be tuned","offer_id":51590841008416,"sku":null,"price":355.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0673\/0504\/6304\/files\/BlackBearLogoFullColor_8bb4aaa1-97e7-4e39-8ac8-897fbc8026c9.png?v=1708632822","url":"https:\/\/www.blackbearperformance.com\/products\/2008-2009-chevrolet-express-4-8l-5-3l-and-6-0l-custom-tuning","provider":"Black Bear Performance","version":"1.0","type":"link"}