{"product_id":"isr-performance-circuit-spec-exhaust-miata-nd1-2016-18","title":"ISR Performance Circuit Spec Exhaust - Miata ND1 2016-18","description":"\u003cp\u003eThe ISR Performance Circuit Spec Exhaust is a three-piece catback exhaust for the 2016-2018 Mazda Miata ND1 (NA chassis, pre-facelift). 2.5 inch brushed stainless piping with V-band joints, ending in a polished stainless muffler with a 4 inch tip. Designed for circuit and track use with a clean, modular construction that breaks down easily for transport.\u003c\/p\u003e\n\n\u003ch3\u003eWhat It Does\u003c\/h3\u003e\n\u003cp\u003eThe factory ND1 Miata exhaust is restrictive and tuned for quiet operation. The Circuit Spec replaces it with a free-flowing 2.5 inch stainless system that opens up exhaust flow, drops weight, and delivers a deeper, more aggressive tone. The three-piece design with V-band mid joints means the exhaust separates into manageable sections for transport and easier installation than a one-piece catback.\u003c\/p\u003e\n\n\u003cp\u003eThe polished muffler with 4 inch tip gives the back of the car a clean track-focused look that fits the ND Miata's existing aesthetic without going over the top.\u003c\/p\u003e\n\n\u003ch3\u003eCritical Fitment\u003c\/h3\u003e\n\u003cp\u003e\u003cstrong\u003eUSDM ND1 manual transmission only.\u003c\/strong\u003e This exhaust will NOT work on:\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eEuro-market ND Miatas (different exhaust routing and emissions equipment)\u003c\/li\u003e\n\u003cli\u003eAutomatic transmission ND Miatas\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eFitment\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003e2016-2018 Mazda Miata ND1 (USDM, manual transmission)\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003eNot tested or designed for the ND2 (2019+ facelift, higher-output engine). Confirm your car is ND1 before ordering.\u003c\/p\u003e\n\n\u003ch3\u003eWhat's in the Box\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003e1x 2-bolt front pipe with resonator (bolts to header with V-band rear flange)\u003c\/li\u003e\n\u003cli\u003e1x V-band mid pipe with 2-bolt rear flange (bolts to muffler section)\u003c\/li\u003e\n\u003cli\u003e1x Muffler section with 4 inch tip\u003c\/li\u003e\n\u003cli\u003e1x V-band clamp\u003c\/li\u003e\n\u003cli\u003e1x 2-bolt 2.5 inch exhaust gasket\u003c\/li\u003e\n\u003cli\u003e2x Bolts\u003c\/li\u003e\n\u003cli\u003e2x Nuts\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-CSEXH-ND\u003c\/p\u003e\n\u003cp style=\"margin-bottom: 4px;\"\u003e\u003cstrong\u003eType:\u003c\/strong\u003e Catback Circuit Spec Exhaust\u003c\/p\u003e\n\u003cp style=\"margin-bottom: 4px;\"\u003e\u003cstrong\u003eVehicle Fitment:\u003c\/strong\u003e 2016-2018 Mazda Miata ND1 (USDM, manual transmission)\u003c\/p\u003e\n\u003cp style=\"margin-bottom: 4px;\"\u003e\u003cstrong\u003eGeneration Restriction:\u003c\/strong\u003e ND1 only - not confirmed for ND2 (2019+)\u003c\/p\u003e\n\u003cp style=\"margin-bottom: 4px;\"\u003e\u003cstrong\u003eMarket Restriction:\u003c\/strong\u003e USDM only - NOT for Euro models\u003c\/p\u003e\n\u003cp style=\"margin-bottom: 4px;\"\u003e\u003cstrong\u003eTransmission Restriction:\u003c\/strong\u003e Manual only - NOT for automatic\u003c\/p\u003e\n\u003cp style=\"margin-bottom: 4px;\"\u003e\u003cstrong\u003eMaterial:\u003c\/strong\u003e Stainless steel\u003c\/p\u003e\n\u003cp style=\"margin-bottom: 4px;\"\u003e\u003cstrong\u003eFinish:\u003c\/strong\u003e Brushed stainless piping, polished stainless muffler\u003c\/p\u003e\n\u003cp style=\"margin-bottom: 4px;\"\u003e\u003cstrong\u003ePiping Diameter:\u003c\/strong\u003e 2.5 inch\u003c\/p\u003e\n\u003cp style=\"margin-bottom: 4px;\"\u003e\u003cstrong\u003eTip Diameter:\u003c\/strong\u003e 4 inch, polished\u003c\/p\u003e\n\u003cp style=\"margin-bottom: 4px;\"\u003e\u003cstrong\u003eConstruction:\u003c\/strong\u003e 3-piece with V-band mid joints (resonator + V-band mid + muffler)\u003c\/p\u003e\n\u003cp style=\"margin-bottom: 4px;\"\u003e\u003cstrong\u003eApplication:\u003c\/strong\u003e Track and circuit use\u003c\/p\u003e\n\u003cp style=\"margin-bottom: 4px;\"\u003e\u003cstrong\u003eSold:\u003c\/strong\u003e Complete catback with hardware\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":45957127667909,"sku":"IS-CSEXH-ND","price":852.5,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0767\/2718\/9701\/files\/IMG_6647_copy__11237.1493913436.1280.1280__15721.1495269636.500.659.jpg?v=1773346691","url":"https:\/\/www.isrcompetition.com\/products\/isr-performance-circuit-spec-exhaust-miata-nd1-2016-18","provider":"ISR Competition","version":"1.0","type":"link"}