{"product_id":"spark-exhaust-db-killer-moto-gp-35mm-open","title":"Spark Exhaust dB Killer Moto GP 35 mm Open 110 mm Universal G9969","description":"\u003cp\u003eThe open Moto GP insert: a hundred and ten millimetres of straight-through restriction, thirty-five across the bore, in the same 57.5 mm body as its perforated sibling.\u003c\/p\u003e\u003ch2\u003eKey Features\u003c\/h2\u003e\u003cul\u003e\n\u003cli\u003edB killer for Spark Moto GP silencers.\u003c\/li\u003e\n\u003cli\u003eØ 57.5 mm outer, 35 mm internal bore, 110 mm long.\u003c\/li\u003e\n\u003cli\u003eOpen type — no perforated wall.\u003c\/li\u003e\n\u003cli\u003eStainless steel, removable.\u003c\/li\u003e\n\u003cli\u003eNot included with the Moto GP universal silencers.\u003c\/li\u003e\n\u003cli\u003eSpark part number G9969, made in Mantova, Italy.\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch2\u003eA Hundred and Ten Millimetres\u003c\/h2\u003e\u003cp\u003eLength is what an open insert has instead of holes. Where a perforated plug breaks the gas column up at a wall, an open one works on it over a distance — and the longer that distance, the more it does.\u003c\/p\u003e\u003cp\u003eAt 110 mm this is one of the longer inserts Spark builds, which is why it manages a useful reduction without perforation.\u003c\/p\u003e\u003ch2\u003eOpen or Perforated\u003c\/h2\u003e\u003cp\u003eSpark offers the choice at the same bore. G9941 has twenty-one holes and takes more noise out; this one keeps the flow freer and takes out less. Neither is the better part — they answer different questions.\u003c\/p\u003e\u003cp\u003eOn a machine already close to a limit, the open insert is often enough, and it costs less mid-range than the perforated one. On a machine well over, it will not be.\u003c\/p\u003e\u003ch2\u003eBoth Sides, Same Article\u003c\/h2\u003e\u003cp\u003eSpark's Moto GP cases come in left and right versions, but the insert does not. Whatever hand the silencer is, this is the plug that goes in it.\u003c\/p\u003e\u003cp\u003eA twin-can installation needs two, ordered as the same number twice.\u003c\/p\u003e\u003ch2\u003eWhy It Is Not in the Box\u003c\/h2\u003e\u003cp\u003eBecause Spark sells the Moto GP case as a racing article and most of them go on machines that run open. Making the insert an option rather than standard keeps the silencer's price honest for the people who will never fit one.\u003c\/p\u003e\u003ch2\u003eStainless in a Titanium Case\u003c\/h2\u003e\u003cp\u003eThe insert is steel even though the silencer is titanium, and that is deliberate. Two titanium surfaces sliding against each other gall; a stainless plug in a titanium bore comes out again after a season of heat cycles.\u003c\/p\u003e\u003ch2\u003eWhat It Does Not Do\u003c\/h2\u003e\u003cp\u003eIt does not confer approval. The Moto GP universal silencer is not homologated and no insert changes that — the certificate belongs to a system on a motorcycle, not to a plug in an outlet.\u003c\/p\u003e","brand":"Spark Exhaust","offers":[{"title":"Default Title","offer_id":53617779704074,"sku":"G9969","price":219000.0,"currency_code":"PYG","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0949\/7831\/0410\/files\/62d8045951b7b_56abcf1c-2f41-40b1-8dc0-72b75ea5769f.png?v=1788343227","url":"https:\/\/inter-pace.com\/en-py\/products\/spark-exhaust-db-killer-moto-gp-35mm-open","provider":"Inter-Pace","version":"1.0","type":"link"}