{"product_id":"isr-performance-mazda-miata-nb-circuit-spec-exhaust-1999-2005","title":"ISR Performance Mazda Miata NB Circuit Spec Exhaust-(1999-2005)","description":"\u003cp\u003eThe ISR Performance Circuit Spec Exhaust for the 1999-2005 Mazda Miata NB is a two-piece catback built specifically for the NB chassis. 2.5\" brushed stainless front pipe mounts directly to the factory header, transitions through a mid pipe with integrated muffler, and ends in a polished stainless muffler with a 4\" tip. Sheds about 18 pounds versus the factory system, which is real weight off the back of a Miata.\u003c\/p\u003e\n\n\u003ch3\u003eWhat It Does\u003c\/h3\u003e\n\u003cp\u003eCatback replacement for the NB Miata. The 2.5\" piping flows better than the choked factory exhaust, expelling gases from the manifold more efficiently. The 18-pound weight reduction is significant on a car this light, and the integrated mid muffler keeps the tone civilized while the rear muffler with 4\" tip delivers the aftermarket sound. Aggressive without being obnoxious, which is the sweet spot for a Miata that still sees street use.\u003c\/p\u003e\n\n\u003ch3\u003eFitment\u003c\/h3\u003e\n\u003cp\u003e\u003cstrong\u003e1999-2005 Mazda Miata NB only.\u003c\/strong\u003e \u003cstrong\u003eNot tested on turbo Mazdaspeed Miata models\u003c\/strong\u003e and may not be compatible. \u003cstrong\u003eWill not fit Euro-market NB Miatas.\u003c\/strong\u003e Mounts directly to the factory header at the front.\u003c\/p\u003e\n\n\u003ch3\u003eWhat's in the Box\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003e1x 2.5\" brushed stainless front pipe\u003c\/li\u003e\n\u003cli\u003e1x mid pipe with integrated muffler\u003c\/li\u003e\n\u003cli\u003e1x rear section with polished stainless muffler and 4\" tip\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-NB\u003c\/p\u003e\n\u003cp style=\"margin-bottom: 4px;\"\u003e\u003cstrong\u003eType:\u003c\/strong\u003e Circuit Spec catback exhaust (two-piece)\u003c\/p\u003e\n\u003cp style=\"margin-bottom: 4px;\"\u003e\u003cstrong\u003eVehicle Fitment:\u003c\/strong\u003e 1999-2005 Mazda Miata NB (US market)\u003c\/p\u003e\n\u003cp style=\"margin-bottom: 4px;\"\u003e\u003cstrong\u003eExcluded:\u003c\/strong\u003e Euro-market NB Miatas, Mazdaspeed turbo Miatas (not tested)\u003c\/p\u003e\n\u003cp style=\"margin-bottom: 4px;\"\u003e\u003cstrong\u003eMaterial:\u003c\/strong\u003e Brushed stainless steel piping, polished stainless muffler\u003c\/p\u003e\n\u003cp style=\"margin-bottom: 4px;\"\u003e\u003cstrong\u003ePiping:\u003c\/strong\u003e 2.5\" front pipe\u003c\/p\u003e\n\u003cp style=\"margin-bottom: 4px;\"\u003e\u003cstrong\u003eTip:\u003c\/strong\u003e 4\"\u003c\/p\u003e\n\u003cp style=\"margin-bottom: 4px;\"\u003e\u003cstrong\u003eMid Pipe:\u003c\/strong\u003e Integrated muffler\u003c\/p\u003e\n\u003cp style=\"margin-bottom: 4px;\"\u003e\u003cstrong\u003eWeight Reduction:\u003c\/strong\u003e ~18 lbs vs factory\u003c\/p\u003e\n\u003cp style=\"margin-bottom: 4px;\"\u003e\u003cstrong\u003eConnection:\u003c\/strong\u003e Bolts to factory header\u003c\/p\u003e\n\u003cp style=\"margin-bottom: 4px;\"\u003e\u003cstrong\u003eSold:\u003c\/strong\u003e Complete kit\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":45957113020613,"sku":"IS-CSEXH-NB","price":605.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0767\/2718\/9701\/files\/Miata_NB__83694.1578929470__90462.1770083322.500.659.jpg?v=1773346834","url":"https:\/\/www.isrcompetition.com\/products\/isr-performance-mazda-miata-nb-circuit-spec-exhaust-1999-2005","provider":"ISR Competition","version":"1.0","type":"link"}