{"product_id":"pie-cuts-4-00-od-6-pcs-90-degree-elbow-vibrant-13640","title":"Pie Cuts, 4.00\" O.D. (6 pcs = 90 Degree Elbow) - Vibrant 13640","description":"\u003ch1\u003ePie Cuts, 4.00\" O.D. (6 pcs = 90 Degree Elbow)\u003c\/h1\u003e\n\u003cp\u003eMandrel bends come in fixed angles and radii, and in a crowded engine bay neither one is ever quite right. Pie cuts solve that by letting you build the bend yourself, one segment at a time. Vibrant 13640 is six 15-degree sections of 4-inch OD T304 stainless; welded together, all six make a 90-degree elbow, and you can use fewer for a shallower angle or clock each piece to roll the bend around an obstruction. The segmented look is also popular on show builds, where the row of welds is part of the appeal.\u003c\/p\u003e\n\u003ch3\u003eSpecifications\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003ePart number: Vibrant 13640\u003c\/li\u003e\n\u003cli\u003eOutside diameter: 4.00 in.\u003c\/li\u003e\n\u003cli\u003ePieces: 6, each 15 degrees (90 degrees total)\u003c\/li\u003e\n\u003cli\u003eMaterial: T304 stainless\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003eFabrication Notes\u003c\/h3\u003e\n\u003cp\u003ePie cuts must be welded to each other. Clean every edge with a stainless brush and acetone, tack each section at four points to check alignment, then fully weld. Back purging with argon is especially important on a stack of pie cuts because there are so many joints, and a sugared root inside a turbo inlet or intake can shed debris. Keep heat input low and alternate sides to keep the stack from pulling out of line.\u003c\/p\u003e\n\u003ch3\u003eWhere They Work\u003c\/h3\u003e\n\u003cp\u003eFour-inch pie cuts are common on turbo inlets, large intake tubes, intercooler piping and big-diameter exhaust, especially when space is too tight for a long-radius mandrel bend.\u003c\/p\u003e\n\u003ch3\u003eFrequently Asked Questions\u003c\/h3\u003e\n\u003ch4\u003eCan pie cuts be clamped instead of welded?\u003c\/h4\u003e\n\u003cp\u003eNo. Pie cuts are individual segments that have to be welded together to form a bend.\u003c\/p\u003e\n\u003ch4\u003eHow many do I need for a 45 degree bend?\u003c\/h4\u003e\n\u003cp\u003eThree 15-degree pieces make 45 degrees. A full set of six makes 90 degrees.\u003c\/p\u003e\n\u003ch4\u003eAre they stainless or aluminum?\u003c\/h4\u003e\n\u003cp\u003eThis set is T304 stainless steel.\u003c\/p\u003e\n\u003ch2\u003eFitment: Universal. Confirm the sizes and thread types listed above against your application before ordering.\u003c\/h2\u003e","brand":"Vibrant Performance","offers":[{"title":"Default Title","offer_id":45243051835675,"sku":"13640","price":61.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0764\/5213\/5195\/files\/ByrJhFPw.jpg?v=1686325642","url":"https:\/\/www.radiantspeedworks.com\/products\/pie-cuts-4-00-od-6-pcs-90-degree-elbow-vibrant-13640","provider":"Radiant Speed Works","version":"1.0","type":"link"}