{"product_id":"spark-exhaust-db-killer-force-35mm-open","title":"Spark Exhaust dB Killer Force 35 mm Open Universal G9944","description":"\u003cp\u003eThe thirty-five millimetre insert for Spark's Force case. Open rather than perforated, and the one Spark names against the small-capacity twins.\u003c\/p\u003e\u003ch2\u003eKey Features\u003c\/h2\u003e\u003cul\u003e\n\u003cli\u003edB killer for Spark Force silencers.\u003c\/li\u003e\n\u003cli\u003e35 mm internal bore.\u003c\/li\u003e\n\u003cli\u003eOpen type — no perforated wall.\u003c\/li\u003e\n\u003cli\u003eListed by Spark for Yamaha R3 and Kawasaki Ninja 400 applications.\u003c\/li\u003e\n\u003cli\u003eStainless steel, removable.\u003c\/li\u003e\n\u003cli\u003eSpark part number G9944, made in Mantova, Italy.\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch2\u003eSized for a Small Engine\u003c\/h2\u003e\u003cp\u003eThirty-five millimetres is the narrower of Spark's two Force inserts, and it is meant for the machines the price list names: an R3, a Ninja 400, anything in the 300 to 400 class. On engines of that size a 40 mm bore would barely restrict anything, and the insert would do nothing.\u003c\/p\u003e\u003cp\u003eOn a larger engine it would be the wrong way round — too tight, and the mid-range would suffer.\u003c\/p\u003e\u003ch2\u003eForce, Not Force Evo\u003c\/h2\u003e\u003cp\u003eTwo different silencer families with similar names, and their inserts are not interchangeable. The Force is Spark's ribbed stainless and titanium case; the Force Evo is the newer titanium one with the carbon end cap. The Evo takes G9999 or G99107 instead.\u003c\/p\u003e\u003cp\u003eIf you are ordering from memory rather than from the silencer in front of you, this is the mistake worth double-checking.\u003c\/p\u003e\u003ch2\u003eOpen Type\u003c\/h2\u003e\u003cp\u003eA straight bore rather than a perforated wall. It costs the engine less than a holed insert of the same diameter and it takes less noise out — which on a 400 twin is normally the correct trade, since these machines are not loud to begin with.\u003c\/p\u003e\u003ch2\u003eFitting\u003c\/h2\u003e\u003cp\u003eFrom the outlet, silencer in place, in a couple of minutes. Removable as often as you like, which is the point of a track-day insert.\u003c\/p\u003e\u003ch2\u003eAn R3 or a Ninja 400\u003c\/h2\u003e\u003cp\u003eSpark names both machines against this article. They share a class rather than a platform: small parallel twins whose exhaust volume is modest and whose owners are the most likely to be riding at circuits with strict noise policies.\u003c\/p\u003e\u003ch2\u003eWhat It Does Not Change\u003c\/h2\u003e\u003cp\u003eThe approval status of the silencer. A racing Force case stays a racing case with the insert in, and a homologated one stays homologated only if the insert Spark supplied is the one that is fitted.\u003c\/p\u003e","brand":"Spark Exhaust","offers":[{"title":"Default Title","offer_id":53617782227210,"sku":"G9944","price":42.02,"currency_code":"EUR","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0949\/7831\/0410\/files\/6290700102d34_6eef5bcb-1575-40f0-a2c6-940879a95657.png?v=1788354068","url":"https:\/\/inter-pace.com\/en-kw\/products\/spark-exhaust-db-killer-force-35mm-open","provider":"Inter-Pace","version":"1.0","type":"link"}