{"product_id":"eventuri-turbo-tube-toyota-gr-yaris-corolla","title":"Eventuri Turbo Tube - Toyota GR Yaris \/ Corolla","description":"\u003ch2 class=\"PDq2pG_selectionAnchorContainer\"\u003e\u003cspan role=\"text\"\u003eEventuri Turbo Tube - Toyota GR Yaris \/ Corolla\u003c\/span\u003e\u003c\/h2\u003e\n\u003ch3 class=\"PDq2pG_selectionAnchorContainer\"\u003e\u003cspan role=\"text\"\u003ePerformance Increase: 14 whp \/ 19 ft-lb midrange; 9 whp \/ 9 ft-lb peak\u003c\/span\u003e\u003cspan class=\"PDq2pG_selectionAnchor\"\u003e\u003c\/span\u003e\u003c\/h3\u003e\n\u003cp\u003eThe Eventuri Carbon Turbo Tube for the Toyota GR Yaris and GR Corolla is designed to provide a less restrictive air intake for the turbocharger. This improves throttle response and allows boost pressure to be achieved earlier in the rev range.\u003c\/p\u003e\n\u003cp\u003eOur development goal was clear: to increase the available air volume while maintaining a smooth, laminar airflow. Achieving these goals required a complete redesign of the original turbocharger pre-intake system, balancing greater volume with optimized flow characteristics.\u003c\/p\u003e\n\u003cp\u003eAs a result of extensive development and testing, we increased the internal volume of the turbo tube from 1,300 cm³ to 2,200 cm³ – almost 70 percent. Most of the volume increase has been achieved in the lower part of the tube, around the critical bend leading towards the turbocharger. The original component is particularly restrictive in this area, while the redesigned geometry creates a significantly larger air reserve immediately before the turbocharger. This contained air volume allows the turbocharger to draw air from a less restrictive source, reduces wastegate duty cycle, and noticeably improves throttle response.\u003c\/p\u003e\n\u003cp\u003eThe main tube is made from pre-preg carbon fiber, which provides an exceptionally rigid structure and prevents the tube from deforming under the vacuum created by the turbocharger. The tube connects seamlessly to a custom nitrile rubber coupling, which in turn attaches to a precision-machined CNC aluminum flange. The flange attaches directly to the turbocharger.\u003c\/p\u003e\n\u003cp\u003eThe system is also designed with future upgrades in mind. Thanks to the modular CNC-machined flange, the system can be adapted to larger hybrid turbos by simply changing the flange. Alternative flanges are available separately.\u003cspan role=\"text\"\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003eThe Eventuri GR4 Carbon Turbo Tube consists of several components, each designed for a specific purpose and manufactured to the highest quality standards. We use 100% pre-preg carbon fiber, without fiberglass, which allows the inner surface of the tube to be extremely smooth and optimally maintain airflow. Below is a description of each component and its design rationale.\u003c\/p\u003e\n\u003ch3\u003e\u003cspan role=\"text\"\u003eTurbo Tube Kit Includes:\u003c\/span\u003e\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003eCarbon Fiber Turbo Tube\u003c\/li\u003e\n\u003cli\u003eCNC Machined Turbo Flange\u003c\/li\u003e\n\u003cli\u003eCustom Nitrile Rubber Coupler\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003e\u003cspan role=\"text\"\u003eCarbon Fiber Turbo Tube\u003c\/span\u003e\u003c\/h3\u003e\n\u003cp\u003eThe main tube is made from pre-preg carbon fiber. This construction allows for a very smooth inner surface, which helps maintain laminar airflow. The tube features an OEM-like mounting point to secure it to the engine, as well as breather connections for plug \u0026amp; play installation.\u003c\/p\u003e\n\u003ch3\u003e\u003cspan role=\"text\"\u003eComparison with OEM\u003c\/span\u003e\u003c\/h3\u003e\n\u003cp\u003eWhen comparing the tubes side-by-side, the most significant volume increase is seen in the bend leading to the turbocharger. The OEM tube is severely restrictive in this area, causing airflow constriction, especially at higher boost pressures.\u003c\/p\u003e\n\u003cp\u003eIn the Eventuri tube, this area has been significantly enlarged, and the bend radius has been optimized for smoother airflow towards the turbocharger. The result is a doubling of the available contained air volume, improving throttle response. Due to the lower flow resistance, peak boost pressure is also achieved earlier.\u003c\/p\u003e\n\u003cp\u003eIncreasing the internal volume from 1,300 cm³ to 2,200 cm³ represents an almost 70 percent increase.\u003c\/p\u003e\n\u003ch3\u003e\u003cspan role=\"text\"\u003eComparison with OEM\u003c\/span\u003e\u003c\/h3\u003e\n\u003cp\u003eThe graph below shows the Eventuri Turbo Tube overlaid with scan data of the OEM tube. The OEM tube is shown in brass, and the Eventuri tube is transparent. The image clearly shows the areas where volume has been increased and the airflow path optimized.\u003c\/p\u003e\n\u003ch3\u003e\u003cspan role=\"text\"\u003eCoupler\u003c\/span\u003e\u003c\/h3\u003e\n\u003cp\u003eThe carbon fiber tube connects to our custom nitrile rubber coupler, which is reinforced with stiffening ribs to withstand the vacuum created by the turbocharger. The design facilitates installation, as the coupler can be installed before the carbon fiber tube.\u003c\/p\u003e\n\u003cp\u003eThe inner surface of the coupler is smooth, and its internal transitions are designed to allow seamless airflow from the carbon fiber tube to the machined turbo flange.\u003c\/p\u003e\n\u003ch3\u003e\u003cspan role=\"text\"\u003eTurbo Flange\u003c\/span\u003e\u003c\/h3\u003e\n\u003cp\u003eThe CNC-machined turbo flange attaches to the turbocharger, completing the airflow path. The flange can be replaced with an alternative version if needed, which we offer separately for larger turbocharger applications.\u003c\/p\u003e\n\u003cp\u003e\u0026nbsp;\u003c\/p\u003e","brand":"Eventuri","offers":[{"title":"Gloss Carbon","offer_id":53877405417819,"sku":"EVE-GR4-CF-CHG","price":717.0,"currency_code":"GBP","in_stock":true},{"title":"Matte Carbon","offer_id":53877405450587,"sku":"EVE-GR4-CFM-CHG","price":717.0,"currency_code":"GBP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0713\/9937\/5126\/files\/55402188359_2499accaab_k_a0eb4c83-ae34-4a67-bccd-ca1ba9df8c8e.png?v=1787644172","url":"https:\/\/www.qtparts.fi\/en-gb\/products\/eventuri-turbo-tube-toyota-gr-yaris-corolla","provider":"QT Parts","version":"1.0","type":"link"}