{"product_id":"chevy-corvette-5-5-zr1-2026","title":"Chevy Corvette 5.5 ZR1 (2026+)","description":"\u003cp\u003eImprove your C8 Corvette ZR1's performance and drivability with a Peitz Performance Delta tuning package using HP Tuners software! We developed these tunes with the overall driving experience in mind. Not only will you gain power at wide open throttle, but you will also feel the difference at part throttle via improved throttle response. This tuning package is intended for mostly stock or \"bolt-on\" C8 ZR1's, including cat back exhaust and air filter\/airbox modifications. If your car has additional modifications, please select the custom tuning option to get tuning even more tailored to your vehicle. Dyno Results shown include a C8 ZR1 with a one of our Halltech airboxes and MS109 race gas (Charlie performance package with race gas option). Results vary depending on modifications.\u003c\/p\u003e\n\u003cp\u003e---\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003eAfter getting your ECM unlocked, simply plug your HP Tuners device directly into the OBDII Port, connect the MPVI 4 to your laptop, read the stock file out, and send it to Peitz Performance. Peitz Performance will write the tune and send it to you and walk you through the process from there.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003eProgramming the Stock ECM (on a stock vehicle) with our calibration will net you up to 20 HP and 90 lb ft of torque with just a flash! These are just peak gains. The power gains \"under the curve\" are what tell the real story. When working with us, you can elect for more torque down low and less horsepower gains up top if only on 93 octane. As we command more boost, you lose top end on 93 only due to octane constraints, but gain more so down low.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003eSelect the MS109 Option to have an additional MS109 tune for your C8 to access the most power your C8 ZR1 can handle!\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003eResults on E85 are pending as we are developing fuel system modifications for the C8 ZR1*\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003e ---\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003eIf you have already had your ECM unlocked and have an MPVI 4 device, select the appropriate options for just tuning support from Peitz Performance!\u003c\/p\u003e\n\u003cp\u003e---\u003c\/p\u003e\n\u003cp\u003eIf you are interested in complete performance packages for your ZR1, please see the ZR1 performance package product page which will include tuning and all!\u003c\/p\u003e\n\u003cp\u003e\u003ciframe width=\"560\" height=\"315\" src=\"https:\/\/www.youtube.com\/embed\/syxLeG1OUVg?si=AD1iq-1PYTFSvyHQ\" title=\"YouTube video player\"\u003e\u003c\/iframe\u003e\u003c\/p\u003e","brand":"Peitz Performance Tunes","offers":[{"title":"Default Title","offer_id":46941129801879,"sku":null,"price":1150.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0429\/7628\/0727\/files\/MPVI44.jpg?v=1775409130","url":"https:\/\/www.peitzperformancetunes.com\/products\/chevy-corvette-5-5-zr1-2026","provider":"Peitz Performance Tunes","version":"1.0","type":"link"}