{"product_id":"2-5-catless-downpipe-exhaust","title":"2.5\" Catless Downpipe Exhaust","description":"The SuncentAuto 2.5\" Catless Downpipe Exhaust is engineered for performance enthusiasts seeking to optimize their INFINITI G37, Q50, Q60, or Nissan 370Z 3.7L V6 engines. The pipe features a 2.5-inch diameter and a mirror-polished finish for reduced friction and an enhanced aesthetic.\n\nBy removing the catalytic converter, this downpipe significantly reduces exhaust backpressure, allowing the engine to breathe more freely. This results in improved horsepower and torque, particularly in the mid-to-high RPM range, leading to more responsive acceleration. Additionally, the enhanced exhaust flow can contribute to a 3-5% improvement in fuel economy and a noticeable reduction in exhaust gas temperatures (EGT) by 100-200°F under load.\n\nHowever, the removal of the catalytic converter necessitates an ECU tune to prevent a Check Engine Light (CEL) and to fully unlock the performance benefits. A professional tuner is recommended to clear the CEL and optimize the engine's parameters for the new exhaust setup.\n\nThis downpipe is precisely engineered for the following 3.7L V6 VQ37VHR engine models: 2008-2013 Infiniti G37 (including Base, IPL, Journey, Sport, X AWD trims), 2014-2015 Infiniti Q50 (Base, Premium, Sport trims), 2014-2015 Infiniti Q60 (Base, IPL trims), and 2009-2018 Nissan 370Z (All Trims). It fits both Coupe and Sedan variants.","brand":"3.7L","offers":[{"title":"Default Title","offer_id":52686678950200,"sku":"5097EMD018SUS","price":149.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0970\/4895\/3144\/files\/660670257.webp?v=1784875862","url":"https:\/\/store.motormia.co\/products\/2-5-catless-downpipe-exhaust","provider":"MOTORMIA","version":"1.0","type":"link"}