{"product_id":"sq-engineering-4age-20v-silvertop-50mm-velocity-stacks","title":"SQ Engineering 4AGE 20V Silvertop 50mm Velocity Stacks","description":"\u003cstrong\u003eSQ Engineering 4AGE 20V Silvertop 50mm Velocity Stacks\u003c\/strong\u003e\u003cbr\u003eSKU: SQ50VS-ST\u003cbr\u003e\u003cbr\u003eSuits all 4A-AGE 20-Valve \"Silver Top\" Engine\u003cbr\u003e(Models with 33mm exhaust port)\u003cbr\u003eCorolla AE101 1991\/06-1995\/05\u003cbr\u003eLevin AE101 1991\/06-1995\/06\u003cbr\u003eSprinter AE101 1991\/06-1995\/06\u003cbr\u003e\u003cbr\u003e\u003cstrong\u003eBolt hole spacing:\u003c\/strong\u003e\u003cbr\u003e73mm centre to centre\u003cbr\u003e\u003cbr\u003e\u003cstrong\u003eDesign features and advantages\u003c\/strong\u003e\u003cbr\u003e- Machined out of a single solid billet aluminium bar\u003cbr\u003e- Full radius bell-mouth\u003cbr\u003e- Long internal taper down before merging straight just before the flange\u003cbr\u003e- Internal diameter ideal size for throttle opening: no nasty steps.\u003cbr\u003e- Positively located: no adjustment available or needed: no crude slots! \u003cbr\u003e- Different Blacktop and Silvertop versions, the shape and taper was optimised for each\u003cbr\u003e- Parabolic \/ Exponential curve inlet transition\u003cbr\u003e- Designed and machined in Australia\u003cbr\u003e- No nonsense semi-polished finish\u003cbr\u003e \u003cbr\u003e\u003cstrong\u003eDevelopment\u003c\/strong\u003e\u003cbr\u003eWhen the new billet velocity stacks where being designed, they where made from the beginning to be the best there is. These shown here are the result of research, prototype works, testing and then finally CNC machining of the final product. \u003cbr\u003e \u003cbr\u003eThe shape of the bellmouth, inlet transition and taper where all optimized to allow for the highest net airspeed possible. During development multiple prototypes where made and put on the flow bench, even the rough test version was able to outflow HRC, IMEC and by a massive 55% the original rubber OEM stacks .","brand":"SQ ENGINEERING","offers":[{"title":"Default Title","offer_id":46401254785214,"sku":"SQ50VS-ST","price":283.38,"currency_code":"NZD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0594\/9453\/1262\/files\/1944605823_5a698e88-08cd-40d0-9b8c-43956fa2428d.jpg?v=1785191704","url":"https:\/\/specperformance.co.nz\/products\/sq-engineering-4age-20v-silvertop-50mm-velocity-stacks","provider":"Spec Performance \/ Diesel Tuning Systems","version":"1.0","type":"link"}