{"product_id":"isr-performance-series-ii-resonated-mid-section-only-bmw-e46-early-323-328","title":"ISR Performance Series II - Resonated Mid Section Only - BMW E46 Early 323\/328","description":"\u003cp\u003eThe ISR Performance Series II Resonated Mid Section is the standalone mid component of the Series II modular exhaust platform for the BMW E46 Early 323\/328. Sold separately so owners can change tone character (resonated vs non-resonated) or replace a damaged mid section without buying a whole new catback.\u003c\/p\u003e\n\n\u003ch3\u003eWhat It Does\u003c\/h3\u003e\n\u003cp\u003eThis is the RESONATED MID SECTION ONLY, not a complete exhaust system. It's the front half of the Series II platform, with flex downpipes that connect to the factory or aftermarket 323\/328 headers, and the resonator and mid pipe transition that mates to a Series II rear section (EP Dual or MBSE). The resonated configuration tones down highway drone while still delivering an aggressive throttle response under load.\u003c\/p\u003e\n\n\u003ch3\u003eCritical Compatibility\u003c\/h3\u003e\n\u003cp\u003e\u003cstrong\u003eONLY works with ISR Series II exhaust systems.\u003c\/strong\u003e This mid section will NOT bolt up to the factory OEM E46 exhaust or to original (pre-Series II) ISR exhausts.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eHeader style matters.\u003c\/strong\u003e This mid section is designed for early 323\/328 style headers ONLY. It will NOT fit late 325\/330 style headers. If you have a 325 or 330, order the Late 325\/330 mid section instead.\u003c\/p\u003e\n\n\u003ch3\u003eTransmission Note\u003c\/h3\u003e\n\u003cp\u003eNOT tested on OEM automatic vehicles. The Series II exhaust development was done on manual transmission cars.\u003c\/p\u003e\n\n\u003ch3\u003eFitment\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003eBMW E46 Early 323\/328 (OEM 323\/328 header or aftermarket with same flange orientation and placement)\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eThis Is Not a Complete Exhaust\u003c\/h3\u003e\n\u003cp\u003eYou need a Series II rear section (EP Dual or MBSE) to complete the system.\u003c\/p\u003e\n\n\u003ch3\u003eWhat's in the Box\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003e1x Resonated mid section\u003c\/li\u003e\n\u003cli\u003e2x Flex downpipes\u003c\/li\u003e\n\u003cli\u003e1x Exhaust hanger bracket\u003c\/li\u003e\n\u003cli\u003e1x Gasket and hardware pack\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eProduct Details\u003c\/h3\u003e\n\u003cp style=\"margin-bottom: 4px;\"\u003e\u003cstrong\u003eBrand:\u003c\/strong\u003e ISR Performance\u003c\/p\u003e\n\u003cp style=\"margin-bottom: 4px;\"\u003e\u003cstrong\u003ePart Number:\u003c\/strong\u003e IS-S2RMD-E46-E\u003c\/p\u003e\n\u003cp style=\"margin-bottom: 4px;\"\u003e\u003cstrong\u003eType:\u003c\/strong\u003e Series II Resonated Mid Section (mid only)\u003c\/p\u003e\n\u003cp style=\"margin-bottom: 4px;\"\u003e\u003cstrong\u003eVehicle Fitment:\u003c\/strong\u003e BMW E46 Early 323\/328 ONLY\u003c\/p\u003e\n\u003cp style=\"margin-bottom: 4px;\"\u003e\u003cstrong\u003eHeader Compatibility:\u003c\/strong\u003e Early 323\/328 style headers only - NOT compatible with 325\/330 headers\u003c\/p\u003e\n\u003cp style=\"margin-bottom: 4px;\"\u003e\u003cstrong\u003eConfiguration:\u003c\/strong\u003e Resonated (refined tone, reduced highway drone)\u003c\/p\u003e\n\u003cp style=\"margin-bottom: 4px;\"\u003e\u003cstrong\u003eTransmission Note:\u003c\/strong\u003e Not tested on automatic transmissions\u003c\/p\u003e\n\u003cp style=\"margin-bottom: 4px;\"\u003e\u003cstrong\u003eCompatibility:\u003c\/strong\u003e ISR Series II exhaust systems ONLY - not OEM or original ISR exhausts\u003c\/p\u003e\n\u003cp style=\"margin-bottom: 4px;\"\u003e\u003cstrong\u003eRequired to Complete System:\u003c\/strong\u003e Series II EP Dual or MBSE rear section (sold separately)\u003c\/p\u003e\n\u003cp style=\"margin-bottom: 4px;\"\u003e\u003cstrong\u003eSold:\u003c\/strong\u003e Mid section only\u003c\/p\u003e\n\u003cp style=\"margin-bottom: 4px;\"\u003e\u003cstrong\u003eLegality:\u003c\/strong\u003e Off-road and competition use only\u003c\/p\u003e","brand":"ISR Performance","offers":[{"title":"Default Title","offer_id":45957129109701,"sku":"IS-S2RMD-E46-E","price":522.5,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0767\/2718\/9701\/files\/E46midpipe2__32661.1716400668.1280.1280__02623.1716910101.500.659.jpg?v=1773346827","url":"https:\/\/www.isrcompetition.com\/products\/isr-performance-series-ii-resonated-mid-section-only-bmw-e46-early-323-328","provider":"ISR Competition","version":"1.0","type":"link"}