{"product_id":"spark-exhaust-stainless-tube-76mm-500mm","title":"Spark Exhaust Stainless Steel Tube Ø 76 × 1.5 mm 500 mm Universal G9014","description":"\u003cp\u003eSeventy-six millimetres with a millimetre and a half of wall. The largest tube Spark stocks, and the heaviest — this is body material, not pipework.\u003c\/p\u003e\u003ch2\u003eKey Features\u003c\/h2\u003e\u003cul\u003e\n\u003cli\u003eStraight exhaust tube, AISI 304 stainless steel.\u003c\/li\u003e\n\u003cli\u003eØ 76 mm outside, 1.5 mm wall thickness.\u003c\/li\u003e\n\u003cli\u003e500 mm long.\u003c\/li\u003e\n\u003cli\u003eThe largest diameter and the thickest wall in Spark's tube range.\u003c\/li\u003e\n\u003cli\u003eSpark part number G9014, made in Mantova, Italy.\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch2\u003eThree Inches\u003c\/h2\u003e\u003cp\u003eSeventy-six millimetres is three inches, which is why the size exists at all: a great deal of exhaust hardware, particularly anything with an American origin, is built to imperial dimensions. If a project has to meet a three-inch component, this is the tube that does it.\u003c\/p\u003e\u003ch2\u003eWall Thickness at the Top of the Range\u003c\/h2\u003e\u003cp\u003eOne and a half millimetres, back to the figure used on the twenty-eight at the other end. The reasons are opposite: the small tube needs it for stiffness, this one needs it to stop a large panel drumming and to survive being formed into a closed body.\u003c\/p\u003e\u003ch2\u003eSilencer and Box Bodies\u003c\/h2\u003e\u003cp\u003eAt this diameter a 500 mm length becomes a silencer case, an expansion chamber or the outer shell of a pre-silencer box. Packed with sound-absorbing material around a perforated core, it is the volume that does the quietening in a custom system.\u003c\/p\u003e\u003cp\u003eWhat it is not is a gas path. Nothing on a motorcycle needs seventy-six millimetres of open bore.\u003c\/p\u003e\u003ch2\u003eCutting Thicker Stainless\u003c\/h2\u003e\u003cp\u003eA 1.5 mm wall at this diameter is a long cut and it will work-harden if the blade rubs rather than cuts. Use a sharp abrasive wheel, keep the feed steady, and let the material cool between passes — a blued, hardened cut edge is difficult to file and worse to weld.\u003c\/p\u003e\u003ch2\u003eBends\u003c\/h2\u003e\u003cp\u003eAvailable from Spark at 30°, 45° and 90°. At 76 mm a factory mandrel bend is the only realistic route — and the price gap between a bend and a straight length is smaller than the cost of ruining two.\u003c\/p\u003e\u003ch2\u003eEnd Caps\u003c\/h2\u003e\u003cp\u003eClosing a seventy-six millimetre body needs a cap at each end, and the cap is the part that decides whether the finished silencer looks made or improvised. A spun stainless cap, a laser-cut disc dished in a press, or a machined ring are the three routes — in that order of appearance and in reverse order of cost.\u003c\/p\u003e\u003ch2\u003eOrdering\u003c\/h2\u003e\u003cp\u003e500 mm per article.\u003c\/p\u003e","brand":"Spark Exhaust","offers":[{"title":"Default Title","offer_id":53617862770954,"sku":"G9014","price":6000.0,"currency_code":"JPY","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0949\/7831\/0410\/files\/5c0fcb22c4a53_edf533dc-be7d-4c84-ab99-15d001bbb45c.png?v=1788362750","url":"https:\/\/inter-pace.com\/en-jp\/products\/spark-exhaust-stainless-tube-76mm-500mm","provider":"Inter-Pace","version":"1.0","type":"link"}