{"product_id":"exhaust-cat-back-n-issan-350z-infiniti-g35-03-08-ban-the-sale-of-amazon","title":"350Z \u0026 G35 Cat-Back Exhaust System - 2003-2008 Coupe\/Convertible","description":"\u003ch2\u003eA Cat-Back Exhaust Built for the 350Z and G35\u003c\/h2\u003e\n\u003cp\u003eThis is a cat-back exhaust system for the 2003-2008 Nissan 350Z (coupe and convertible) and 2003-2008 Infiniti G35 coupe, replacing everything from the catalytic converters back with 3-inch piping and a 4.5-inch flat tip. If the factory exhaust on your VQ35DE feels muffled and you're after a deeper, more noticeable tone along with a modest bump in flow, this is a direct bolt-on system rather than a piece-by-piece build.\u003c\/p\u003e\n\n\u003ch2\u003eWhat \"Cat-Back\" Means Here\u003c\/h2\u003e\n\u003cp\u003eCat-back refers to what's being replaced: everything downstream of the catalytic converters, which is the mid-pipe, muffler, and exhaust tip. Because the cats themselves stay in place, this keeps the car emissions-legal in the sections that matter for inspection while still opening up the flow path enough to change both the sound and, to a smaller degree, the way the engine breathes under load. It's a common first exhaust upgrade on the Z33 platform for exactly that reason — noticeable difference, no cutting into the factory catalytic converters.\u003c\/p\u003e\n\n\u003ch2\u003eKey Features\u003c\/h2\u003e\n\u003cul\u003e\n\u003cli\u003e3-inch mandrel piping from the mid-pipe back\u003c\/li\u003e\n\u003cli\u003e4.5-inch flat exhaust tip with a removable double-layer silencer insert\u003c\/li\u003e\n\u003cli\u003eDeeper, more noticeable exhaust note than the factory system\u003c\/li\u003e\n\u003cli\u003eDirect bolt-on design using factory hanger locations\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch2\u003eSpecifications\u003c\/h2\u003e\n\u003cul\u003e\n\u003cli\u003eType: Cat-back exhaust system\u003c\/li\u003e\n\u003cli\u003ePiping diameter: 3 in.\u003c\/li\u003e\n\u003cli\u003eTip size: 4.5 in., flat style\u003c\/li\u003e\n\u003cli\u003eSilencer: Removable double-layer insert\u003c\/li\u003e\n\u003cli\u003eCondition: New\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch2\u003eCompatibility\u003c\/h2\u003e\n\u003cp\u003eFits 2003-2008 Nissan 350Z coupe and convertible models, and 2003-2008 Infiniti G35 coupe models only — the G35 sedan uses a different rear section and needs an additional extension piece that isn't included with this system. If you're working on a sedan, check with us before ordering so you get the right combination the first time.\u003c\/p\u003e\n\n\u003ch2\u003eSound and Performance\u003c\/h2\u003e\n\u003cp\u003eWith the silencer insert in place, the tone is noticeably deeper than stock without tipping into obnoxious at idle; pull the insert and it opens up further for a louder, more aggressive note, which is the point of making it removable in the first place. On the performance side, opening up backpressure from the cats back typically shows up as a modest gain, commonly cited in the 10-15 hp range on a VQ35DE, though the exact number depends on the rest of the car's intake, tune, and overall condition. Professional installation is recommended, both for getting the hangers and clamps seated correctly and for catching any exhaust leaks before they become a rattle you're chasing later.\u003c\/p\u003e\n\n\u003ch2\u003eInstallation Notes\u003c\/h2\u003e\n\u003cp\u003eMost of this system hangs from the factory rubber isolators, so the swap is mostly a matter of supporting the old exhaust, breaking the band clamps loose, and working it out from the rear — penetrating oil on the clamps and hangers helps if the factory system has been on for a while. Because the silencer insert is removable after the system is installed, it's worth deciding up front whether you want the quieter street setting or the louder open setting day to day, since swapping it later just means pulling the tip again rather than redoing the whole install.\u003c\/p\u003e\n\n\u003ch2\u003eWhy Owners Choose This System\u003c\/h2\u003e\n\u003cp\u003eThe \u003ca href=\"https:\/\/en.wikipedia.org\/wiki\/Nissan_350Z\"\u003e350Z and its Infiniti G35 sibling\u003c\/a\u003e share the VQ35DE V6 and a chassis that's held up well as a modification platform long after production ended, which is part of why cat-back systems for the Z33 are still in steady demand. For most owners this is a straightforward upgrade over a tired or rattling factory exhaust, or simply a way to get more sound and a bit more flow without touching the catalytic converters or triggering emissions concerns in areas that test the cat-back section.\u003c\/p\u003e\n\n\u003ch2\u003eOrdering Information\u003c\/h2\u003e\n\u003cp\u003eThis 350Z and G35 cat-back exhaust is in stock and ships ready to install. Our \u003ca href=\"\/pages\/shipping\"\u003eShipping Information\u003c\/a\u003e page has current timelines, and our \u003ca href=\"\/pages\/warranty\"\u003eWarranty\u003c\/a\u003e and \u003ca href=\"\/pages\/returns\"\u003eReturns\u003c\/a\u003e pages cover what to do if anything isn't right on arrival. If you're not sure whether your G35 is a coupe or need the sedan extension, our \u003ca href=\"\/pages\/request-a-part\"\u003eRequest a Part page\u003c\/a\u003e is the quickest way to confirm before you order.\u003c\/p\u003e\n\n\u003ch2\u003eRelated Parts\u003c\/h2\u003e\n\u003cp\u003eThis system is listed in our \u003ca href=\"\/collections\/exhaust-parts\"\u003eExhaust \u0026amp; Emissions\u003c\/a\u003e collection and our \u003ca href=\"\/collections\/nissan\"\u003eNissan\u003c\/a\u003e collection, both worth a look if you're planning further work on the Z33 platform or another Nissan in your garage.\u003c\/p\u003e","brand":"EasyLife Auto Parts","offers":[{"title":"Silver","offer_id":49810145312996,"sku":"CJQT239802801AZ","price":208.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0740\/0502\/0900\/files\/904b2f5e-56cc-47a9-ad50-be6dd7520729.jpg?v=1788762565","url":"https:\/\/easylifeautoparts.com\/products\/exhaust-cat-back-n-issan-350z-infiniti-g35-03-08-ban-the-sale-of-amazon","provider":"Easy Life Auto Parts","version":"1.0","type":"link"}