{"product_id":"spark-exhaust-trumpet-slip-on-stainless-triumph-street-twin","title":"Spark Exhaust Trumpet Slip-On Pair Stainless Euro 4 Triumph Street Twin 900 (2017-2018) GTR0402IOM","description":"\u003cp\u003eThe long one, with papers. Spark's Trumpet slip-ons run further back along the Street Twin than the 60's shape and carry the same Euro 4 approval — a combination that is unusual enough in this catalogue to be the reason most people find the page.\u003c\/p\u003e\u003ch2\u003eKey Features\u003c\/h2\u003e\u003cul\u003e\n\u003cli\u003ePair of Trumpet slip-on silencers for the Triumph Street Twin 900, 2017 to 2018.\u003c\/li\u003e\n\u003cli\u003eEuro 4 homologated, approval from the Italian Ministry of Transport.\u003c\/li\u003e\n\u003cli\u003eAISI 304 stainless with a Scotch-Brite finish.\u003c\/li\u003e\n\u003cli\u003e3.5 kg against 7.5 kg standard.\u003c\/li\u003e\n\u003cli\u003eThe longest of Spark's three shapes for this motorcycle.\u003c\/li\u003e\n\u003cli\u003eHeader pipes and catalyst stay standard.\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch2\u003eLength Changes the Motorcycle\u003c\/h2\u003e\u003cp\u003eA Street Twin is a short bike with a lot of visual weight in the tank and the engine, and the standard silencers are stubby enough to leave the tail looking cut off. A Trumpet reaches back past that, and the line it draws makes the whole machine read longer and lower.\u003c\/p\u003e\u003cp\u003eWhether that is what you want is the entire decision. The 60's shape does the opposite — it emphasises how compact the bike is. Neither is more correct and both cost the same 856 euro.\u003c\/p\u003e\u003ch2\u003eThe Same Name Across the Range\u003c\/h2\u003e\u003cp\u003eSpark uses Trumpet for this outline throughout its retro programme: a long, evenly tapering body that opens slightly at the mouth. The pair for the older Bonneville T100 carries the same name and the same silhouette.\u003c\/p\u003e\u003cp\u003eThe difference is what surrounds them. On a T100 the Trumpet is one classic shape among several on a chrome-heavy bike; on a Street Twin, which left the factory black and matte, it is the part that adds the brightness.\u003c\/p\u003e\u003ch2\u003eWhat the Approval Actually Covers\u003c\/h2\u003e\u003cp\u003eThe exhaust as delivered, with the standard catalyst in place. Spark did not remove the converter to find the performance — the gain comes from the silencers and the pipe work behind the collector, and Spark places it at low and medium revs rather than at the top.\u003c\/p\u003e\u003cp\u003eThat distinction matters at an inspection. An approved silencer on a bike whose catalyst has been taken out is not an approved motorcycle.\u003c\/p\u003e\u003ch2\u003eFour Kilos\u003c\/h2\u003e\u003cp\u003e7.5 kg standard, 3.5 kg fitted. It is the same order of saving as the 60's pair, three hundred grams behind because the body is longer, and it comes off the back of a motorcycle that weighs a little over 200 kg wet.\u003c\/p\u003e\u003ch2\u003eInstallation\u003c\/h2\u003e\u003cp\u003eSlip-on level: the standard silencers come off and Spark's go on, header pipes untouched. The approval covers the exhaust as delivered, so nothing about the fitting is a compromise on the paperwork.\u003c\/p\u003e\u003ch2\u003eFitment \u0026amp; Compatibility\u003c\/h2\u003e\u003cp\u003eTriumph Street Twin 900, 2017 and 2018. Black ceramic version: GTR0402BOM. The shorter 60's pair is GTR0401IOM and GTR0401BOM; the Sinfonia is GTR0403IOM and GTR0403BOM. The Trumpet slip-ons also complete Spark's Euro 4 range for the Bonneville T120 alongside the GTR8804 full system.\u003c\/p\u003e\u003ch2\u003eRoad Approval\u003c\/h2\u003e\u003cp\u003eEuro 4 homologated, released by the Italian Ministry of Transport, with the original catalyst retained.\u003c\/p\u003e\u003ch2\u003eSpecifications\u003c\/h2\u003e\u003cul\u003e\n\u003cli\u003ePart number: GTR0402IOM\u003c\/li\u003e\n\u003cli\u003eType: Slip-on, pair\u003c\/li\u003e\n\u003cli\u003eDesign: Trumpet\u003c\/li\u003e\n\u003cli\u003eMaterial: AISI 304 stainless steel, Scotch-Brite finish\u003c\/li\u003e\n\u003cli\u003eWeight: 3.5 kg (standard 7.5 kg)\u003c\/li\u003e\n\u003cli\u003eRoad approval: Euro 4 homologated\u003c\/li\u003e\n\u003cli\u003eFitment: Triumph Street Twin 900 (2017-2018)\u003c\/li\u003e\n\u003cli\u003eManufacturer: Spark Exhaust Technology, Mantova, Italy\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"Spark Exhaust","offers":[{"title":"Default Title","offer_id":53610811916554,"sku":"GTR0402IOM","price":852.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0949\/7831\/0410\/files\/67487759a571a_379b4a9b-6520-4893-a122-13ae46d88b06.png?v=1788254015","url":"https:\/\/inter-pace.com\/en-zw\/products\/spark-exhaust-trumpet-slip-on-stainless-triumph-street-twin","provider":"Inter-Pace","version":"1.0","type":"link"}