{"product_id":"greddy-06-11-honda-civic-si-63-5mm-supreme-sp-cat-back-exhaust","title":"GReddy 06-11 Honda Civic Si 63.5mm Supreme SP Cat-Back Exhaust - 10158208","description":"GReddy 06-11 Honda Civic Si 63.5mm Supreme SP Cat-Back Exhaust\n\u003cp\u003eUpgrade the exhaust performance and appearance of your 2006-2011 Honda Civic Si with the GReddy Supreme SP Cat-Back Exhaust. Designed with a 63.5mm exhaust path, this system helps improve exhaust flow while delivering the fit, finish, and performance expected from GReddy automotive components. The Supreme SP configuration provides a sportier exhaust note without sacrificing the refined character needed for street-driven vehicles.\u003cbr\u003eGReddy Part Number 10158208 is engineered as a vehicle-specific cat-back exhaust system for compatible Honda Civic Si applications from the 2006 through 2011 model years. Cat-back construction replaces the exhaust components behind the catalytic converter, making it a practical choice for enthusiasts seeking improved sound, styling, and exhaust system performance. The application-focused design supports a straightforward installation when used with the appropriate vehicle configuration and installation hardware.\u003cbr\u003eThis exhaust system features a durable construction intended to withstand normal street and performance-driving conditions. Its polished, performance-oriented appearance complements the Civic Si chassis, while the Supreme SP design adds a distinctive exhaust tone under acceleration. Professional installation is recommended to verify alignment, clearance, and proper connection throughout the exhaust system.\u003cbr\u003eThis product may require a California emissions compliance acknowledgment before purchase or installation. Confirm local emissions regulations and vehicle compatibility before ordering. Always review the manufacturer's installation instructions and verify that your Honda Civic Si matches the listed application requirements.\u003c\/p\u003e\u003cp\u003e\u003cb\u003eFeatures:\u003c\/b\u003e\u003c\/p\u003e\u003cul\u003e\u003cli\u003eVehicle-specific cat-back exhaust system for compatible 2006-2011 Honda Civic Si models\u003c\/li\u003e\u003c\/ul\u003e\u003cul\u003e\u003cli\u003e63.5mm exhaust tubing supports improved exhaust flow and performance potential\u003c\/li\u003e\u003c\/ul\u003e\u003cul\u003e\u003cli\u003eSupreme SP design delivers a sportier exhaust tone and performance-oriented appearance\u003c\/li\u003e\u003c\/ul\u003e\u003cul\u003e\u003cli\u003eGReddy construction provides a durable upgrade for street and enthusiast driving\u003c\/li\u003e\u003c\/ul\u003e\u003cul\u003e\u003cli\u003eDesigned for installation behind the catalytic converter\u003c\/li\u003e\u003c\/ul\u003e\u003cul\u003e\u003cli\u003eCalifornia emissions compliance acknowledgment may be required\u003c\/li\u003e\u003c\/ul\u003e\u003cbr\u003e\nFitment:\u003cbr\u003e\n2006:Honda:Civic:DX\u003cbr\u003e\n2006:Honda:Civic:EX\u003cbr\u003e\n2006:Honda:Civic:GX\u003cbr\u003e\n2006:Honda:Civic:Hybrid\u003cbr\u003e\n2006:Honda:Civic:LX\u003cbr\u003e\n2006:Honda:Civic:Si\u003cbr\u003e\n2007:Honda:Civic:DX\u003cbr\u003e\n2007:Honda:Civic:EX\u003cbr\u003e\n2007:Honda:Civic:GX\u003cbr\u003e\n2007:Honda:Civic:Hybrid\u003cbr\u003e\n2007:Honda:Civic:LX\u003cbr\u003e\n2007:Honda:Civic:Si\u003cbr\u003e\n2008:Honda:Civic:DX\u003cbr\u003e\n2008:Honda:Civic:EX\u003cbr\u003e\n2008:Honda:Civic:GX\u003cbr\u003e\n2008:Honda:Civic:Hybrid\u003cbr\u003e\n2008:Honda:Civic:LX\u003cbr\u003e\n2008:Honda:Civic:MUGEN Si\u003cbr\u003e\n2008:Honda:Civic:Si\u003cbr\u003e\n2009:Honda:Civic:DX\u003cbr\u003e\n2009:Honda:Civic:EX\u003cbr\u003e\n2009:Honda:Civic:EX-L\u003cbr\u003e\n2009:Honda:Civic:GX\u003cbr\u003e\n2009:Honda:Civic:Hybrid\u003cbr\u003e\n2009:Honda:Civic:Hybrid-L\u003cbr\u003e\n2009:Honda:Civic:LX\u003cbr\u003e\n2009:Honda:Civic:LX-S\u003cbr\u003e\n2009:Honda:Civic:Si\u003cbr\u003e\n2010:Honda:Civic:DX\u003cbr\u003e\n2010:Honda:Civic:EX\u003cbr\u003e\n2010:Honda:Civic:EX-L\u003cbr\u003e\n2010:Honda:Civic:GX\u003cbr\u003e\n2010:Honda:Civic:Hybrid\u003cbr\u003e\n2010:Honda:Civic:Hybrid-L\u003cbr\u003e\n2010:Honda:Civic:LX\u003cbr\u003e\n2010:Honda:Civic:LX-S\u003cbr\u003e\n2010:Honda:Civic:Si\u003cbr\u003e\n2011:Honda:Civic:DX\u003cbr\u003e\n2011:Honda:Civic:EX\u003cbr\u003e\n2011:Honda:Civic:EX-L\u003cbr\u003e\n2011:Honda:Civic:GX\u003cbr\u003e\n2011:Honda:Civic:Hybrid\u003cbr\u003e\n2011:Honda:Civic:Hybrid-L\u003cbr\u003e\n2011:Honda:Civic:LX\u003cbr\u003e\n2011:Honda:Civic:LX-S\u003cbr\u003e\n2011:Honda:Civic:Si","brand":"GReddy","offers":[{"title":"Default Title","offer_id":52798219878680,"sku":"GRE10158208","price":750.5,"currency_code":"USD","in_stock":false}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0259\/7856\/8790\/files\/224b379e-1cca-4b7e-aeda-94f348753152-800.jpg?v=1790912746","url":"https:\/\/nipponpower.com\/products\/greddy-06-11-honda-civic-si-63-5mm-supreme-sp-cat-back-exhaust","provider":"Nippon Power","version":"1.0","type":"link"}