{"product_id":"spark-exhaust-db-killer-grid-o-38mm","title":"Spark Exhaust dB Killer Grid-O 38 mm Open 150 mm Universal G9982","description":"\u003cp\u003eA hundred and fifty millimetres of Grid-O insert at a thirty-eight millimetre bore. Spark names four Yamaha exhausts against it, which tells you where most of them go.\u003c\/p\u003e\u003ch2\u003eKey Features\u003c\/h2\u003e\u003cul\u003e\n\u003cli\u003edB killer for Spark Grid-O silencers.\u003c\/li\u003e\n\u003cli\u003eØ 51.5 mm outer, 38 mm internal bore, 150 mm long.\u003c\/li\u003e\n\u003cli\u003eOpen type, no perforation.\u003c\/li\u003e\n\u003cli\u003eListed by Spark for exhausts GYA8862, GYA8870, GYA8874 and GYA8876.\u003c\/li\u003e\n\u003cli\u003eStainless steel, removable.\u003c\/li\u003e\n\u003cli\u003eSpark part number G9982, made in Mantova, Italy.\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch2\u003eThe Long Grid-O Insert\u003c\/h2\u003e\u003cp\u003eAt 150 mm this is the longest of the four Grid-O plugs, and length is where an open insert gets its effect. A short plug narrows the exit at a point; a long one works on the gas column over a distance and takes more out for the same bore.\u003c\/p\u003e\u003cp\u003eIt also needs the room. Confirm that the case has 150 mm of clear section behind the outlet before ordering.\u003c\/p\u003e\u003ch2\u003eFour Yamaha Exhausts\u003c\/h2\u003e\u003cp\u003eGYA8862, GYA8870, GYA8874 and GYA8876 — Spark's MT-07 and XSR700 family systems. On those the insert is a spare part rather than an accessory: it came with the exhaust and this is how you replace it.\u003c\/p\u003e\u003cp\u003eOn any other Grid-O case with a 38 mm outlet it is an option rather than a spare.\u003c\/p\u003e\u003ch2\u003eThirty-Eight Millimetres\u003c\/h2\u003e\u003cp\u003eThe middle of the Grid-O range. Wider than the 32 and narrower than the 40 and the 45, which puts it in the sensible place for a mid-capacity twin — enough restriction to matter, not enough to hurt the mid-range.\u003c\/p\u003e\u003ch2\u003eGrid-O and Its Mesh\u003c\/h2\u003e\u003cp\u003eThe Grid-O case ends in a woven titanium grid across the entire outlet. That mesh is structural and acoustic at once, and it is the reason all four inserts for this family are open: adding perforation behind a mesh buys little and costs flow.\u003c\/p\u003e\u003ch2\u003eOrder It With the Exhaust\u003c\/h2\u003e\u003cp\u003eIf you are buying one of the four Yamaha systems Spark names, the insert is already in the box. If you are buying a used one, it very often is not — ask the seller before you assume, because a system without its plug is a system you cannot take to most circuits.\u003c\/p\u003e\u003ch2\u003eApproval\u003c\/h2\u003e\u003cp\u003eOn a homologated exhaust the supplied insert is part of the certified configuration and belongs in the silencer. On a racing article no insert creates an approval.\u003c\/p\u003e","brand":"Spark Exhaust","offers":[{"title":"Default Title","offer_id":53617782915338,"sku":"G9982","price":77.0,"currency_code":"CAD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0949\/7831\/0410\/files\/65c4d93149094_336a0a9c-bcec-4589-b846-241000ba99d2.png?v=1788343285","url":"https:\/\/inter-pace.com\/en-ca\/products\/spark-exhaust-db-killer-grid-o-38mm","provider":"Inter-Pace","version":"1.0","type":"link"}