{"product_id":"dinan-valved-catback-exhaust-black-tips-bmw-g01-x3m40i-g02-x4m40i","title":"Dinan Valved Catback Exhaust - Black Tips - BMW G01 X3 M40i \/ G02 X4 M40i","description":"\u003cp\u003eThe Dinan Valved Catback for the BMW G01 X3 M40i and G02 X4 M40i eliminates the factory central collector and resonator while simplifying the routing to a single unrestricted pipe, abandoning the OEM single-to-dual split in favor of a straighter, freer-flowing path. That pipe feeds into a Helmholtz-tuned muffler, a resonance-based design that targets and cancels the frequencies responsible for interior drone while shaping the Dinan exhaust character. The factory valve is retained, providing a genuine range from composed cruising at low RPM to an aggressive open-pipe note under hard acceleration. Pair the system with an aftermarket valve remote for on-demand manual control at any speed.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eFeatures:\u003c\/strong\u003e\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003e+\u003c\/strong\u003e Full catback system, eliminates OEM central collector and resonator\u003cbr\u003e\u003cstrong\u003e+\u003c\/strong\u003e Simplified single-pipe routing for unrestricted, straight-through flow\u003cbr\u003e\u003cstrong\u003e+\u003c\/strong\u003e Helmholtz-tuned muffler eliminates drone frequencies while shaping tone\u003cbr\u003e\u003cstrong\u003e+\u003c\/strong\u003e Factory exhaust valve retained for quiet cruise and open-pipe acceleration\u003cbr\u003e\u003cstrong\u003e+\u003c\/strong\u003e Compatible with aftermarket exhaust valve remote for manual control\u003cbr\u003e\u003cstrong\u003e+\u003c\/strong\u003e Weight reduction vs OEM center section\u003cbr\u003e\u003cstrong\u003e+\u003c\/strong\u003e Fits BMW G01 X3 M40i and G02 X4 M40i with B58 engine\u003c\/p\u003e","brand":"Dinan","offers":[{"title":"Default Title","offer_id":51268702011638,"sku":"DNND660-0099-BLK","price":2049.95,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/2674\/6278\/files\/82e99c85da50201772899b2049c01be2L.jpg?v=1784135595","url":"https:\/\/autotecknic.com\/products\/dinan-valved-catback-exhaust-black-tips-bmw-g01-x3m40i-g02-x4m40i","provider":"AutoTecknic USA","version":"1.0","type":"link"}