{"product_id":"riva-sea-doo-rxp-x-2021-2023-stage-4-kit","title":"Riva Sea-Doo RXP-X (2021-2023) Stage 4 Kit","description":"\u003cmeta charset=\"utf-8\"\u003e\n\u003cdiv class=\"block-description-wrapper product attribute overview info-showed\" data-mce-fragment=\"1\"\u003e\n\u003cdiv class=\"value block-description-holder\" data-mce-fragment=\"1\"\u003e\n\u003cdiv class=\"perf-kit-includes\" data-mce-fragment=\"1\"\u003e\n\u003cmeta charset=\"utf-8\"\u003e\n\u003cdiv class=\"performance-data-tooltip\"\u003e\n\u003cp\u003eThis kit delivers a significant level of performance (+20 MPH on U.S. models) through easy to install engine upgrades. No internal engine modifications are required. Requires use of fresh premium octane pump fuel (91~93).\u003c\/p\u003e\n\u003cp\u003e\u003cstrong style=\"font-family: -apple-system, BlinkMacSystemFont, 'San Francisco', 'Segoe UI', Roboto, 'Helvetica Neue', sans-serif; font-size: 0.875rem;\" data-mce-style=\"font-family: -apple-system, BlinkMacSystemFont, 'San Francisco', 'Segoe UI', Roboto, 'Helvetica Neue', sans-serif; font-size: 0.875rem;\"\u003eRIVA Tested: Stage 4 | 88 MPH @ 9000 RPM\u003c\/strong\u003e\u003cbr\u003e\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"performance-data-tooltip\"\u003e\u003cstrong\u003eTest Conditions: Air Temp 75 Degrees F, Fuel Level 1\/3, Neutral Trim; Sea Level Elevation; Fresh, Smooth Water. Results will vary due to test conditions. \u003c\/strong\u003e\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"perf-kit-includes\" data-mce-fragment=\"1\"\u003e\u003cbr\u003e\u003c\/div\u003e\n\u003cdiv class=\"perf-kit-includes\" data-mce-fragment=\"1\"\u003e\u003cstrong\u003eIncludes: \u003c\/strong\u003e\u003c\/div\u003e\n\u003cdiv class=\"perf-kit-includes\" data-mce-fragment=\"1\"\u003e\n\u003cul\u003e\n\u003cli\u003eRiva MaptunerX BRP Bundle\u003cbr\u003e\n\u003c\/li\u003e\n\u003cli\u003eRiva Sea-Doo 2020+ RXT\/GTX 300 \u0026amp; 2021+ RXP Power Filter Kit\u003c\/li\u003e\n\u003cli\u003eRiva Sea-Doo Catch Can\/Engine Breather Kit \u003c\/li\u003e\n\u003cli\u003eSolas Sea-Doo Concord SX4-CD-13\/15 Impeller\u003c\/li\u003e\n\u003cli\u003eVT1100 Fuel Injector Kit\u003c\/li\u003e\n\u003cli\u003eRiva Sea-Doo 300 Racing Camshaft\u003c\/li\u003e\n\u003cli\u003eRiva Sea-Doo 4-Tec Valve Retainer Upgrade Kit\u003c\/li\u003e\n\u003cli\u003eRiva Sea-Doo 300 XXX-Charger\u003c\/li\u003e\n\u003cli\u003eRiva Sea-Doo 230\/300 Intake Manifold Upgrade Kit\u003c\/li\u003e\n\u003cli\u003eRiva RXP-X Free Flow Exhaust Kit\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"perf-kit-includes\" data-mce-fragment=\"1\"\u003e\n\u003cp\u003eRIVA MaptunerX BRP Bundle is utilized to reflash original ECU. MaptunerX provides ability to quickly and easily load performance tunes directly into your stock ECU eliminating downtime that results from shipping for programming. Performance Tunes are calibrated to provide optimum fuel delivery, ignition timing and rev limit to compliment RIVA Racing Performance Kits. OEM dash display, engine diagnostics \u0026amp; engine safety functions are retained. MaptunerX features a full color, touch screen display, ability to restore stock tune settings and access to\u003cspan\u003e \u003c\/span\u003e\u003ca href=\"https:\/\/rivaracing.com\/tunelibrary\" data-mce-href=\"https:\/\/rivaracing.com\/tunelibrary\"\u003eRIVA's complete tuning library\u003c\/a\u003e\u003cspan\u003e \u003c\/span\u003eand technical support. \u003c\/p\u003e\n\u003cp\u003eBosch VT1100 Fuel Injector Kit is installed. High performance 1100cc fuel injector kit supplies modified Sea-Doo engines with the necessary amount of fuel to produce reliable horsepower. \u003c\/p\u003e\n\u003cp\u003eRIVA Power Filter Kit is installed. Air intake is relocated forward away from hot engine delivering cold, fresh air to engine via large 4\" smooth-bore ducting that is attached to supercharger with unique velocity stack and sturdy billet clamps. \u003c\/p\u003e\n\u003cp\u003eRIVA 300 XX-Charger is installed. High performance billet impeller \u0026amp; 3MM spacer increase horsepower through superior impeller blade design and larger interior housing volume. Lightweight billet impeller features a sophisticated blade design that is precision balanced to deliver smooth operation. Spacer \u0026amp; impeller install quickly and easily onto stock supercharger base plate delivering 17.5 psi of boost pressure producing arm wrenching acceleration and increased top speed. IJSBA Limited Class legal. Requires RIVA\/MaptunerX ECU re-flash tune \u0026amp; Bosch VT1100 Fuel Injectors for correct calibration. Includes detailed installation instructions \u003c\/p\u003e\n\u003cp\u003eRIVA Intake Manifold Upgrade Kit is installed. Removal of restrictive screen element from inside of intake manifold enables your engine to produce more horsepower through increased boost pressures (+1lb). Special o-ringed, billet block-off plug with integrated fitting for aftermarket boost pressure gauge fills opening left after removal of screen element.\u003c\/p\u003e\n\u003cp\u003eRIVA Racing Camshaft is installed. Camshaft delivers a serious gain in horsepower and torque with its optimized valve lift profile.\u003c\/p\u003e\n\u003cp\u003eRIVA Valve Retainer Upgrade Kit is installed. Titanium valve retainers increase reliability of modified engine by reducing the possibility of valve float at high RPM. To ease installation of Valve Train Upgrade Kit we offer a unique Valve Compression Tool that allows installation without removal of cylinder head saving you time and money. IJSBA Stock Class legal.\u003c\/p\u003e\n\u003cp\u003e\u003cspan style=\"font-family: -apple-system, BlinkMacSystemFont, 'San Francisco', 'Segoe UI', Roboto, 'Helvetica Neue', sans-serif; font-size: 0.875rem;\" data-mce-style=\"font-family: -apple-system, BlinkMacSystemFont, 'San Francisco', 'Segoe UI', Roboto, 'Helvetica Neue', sans-serif; font-size: 0.875rem;\"\u003eRIVA Free Flow Exhaust Kit is installed. Kit allows removal of restrictive sound suppression system located between water box and hull exit. Improves engine performance by reducing back pressure \u0026amp; restriction.\u003c\/span\u003e\u003cbr\u003e\u003c\/p\u003e\n\u003cp\u003eSolas Concord Impeller is installed. Designed in cooperation with the RIVA Racing Research \u0026amp; Development Team specifically for use with this performance kit, this impeller reduces cavitation, increases acceleration and maximizes engine horsepower.\u003c\/p\u003e\n\u003cb style=\"font-family: -apple-system, BlinkMacSystemFont, 'San Francisco', 'Segoe UI', Roboto, 'Helvetica Neue', sans-serif; font-size: 0.875rem;\" data-mce-style=\"font-family: -apple-system, BlinkMacSystemFont, 'San Francisco', 'Segoe UI', Roboto, 'Helvetica Neue', sans-serif; font-size: 0.875rem;\"\u003eNOTE: Sea-Doo and RIVA both strongly recommend the use of premium octane (91+) pump fuel in your craft.\u003c\/b\u003e\u003cbr\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"perf-kit-includes\" data-mce-fragment=\"1\"\u003e\n\u003cp\u003e \u003cb\u003eRIVA Performance Kits intended for competition use only.\u003c\/b\u003e\u003c\/p\u003e\n\u003cdiv aria-expanded=\"false\" aria-selected=\"false\" role=\"tab\" data-role=\"title\" class=\"applications-title\" tabindex=\"0\" data-mce-tabindex=\"0\"\u003e\u003cspan\u003eAPPLICATIONS\u003c\/span\u003e\u003c\/div\u003e\n\u003cdiv aria-hidden=\"true\" role=\"tabpanel\" data-role=\"content\" class=\"applications-content\"\u003e\n\u003cul class=\"applications-content-list\"\u003e\n\u003cli\u003e\u003ca href=\"https:\/\/rivaracing.com\/amfinder\/?find=2023-sea-doo-rxp-x-300-247629\" class=\"applicationInfo\" data-mce-href=\"https:\/\/rivaracing.com\/amfinder\/?find=2023-sea-doo-rxp-x-300-247629\"\u003e2023 Sea-Doo RXP-X 300\u003c\/a\u003e\u003c\/li\u003e\n\u003cli\u003e\u003ca href=\"https:\/\/rivaracing.com\/amfinder\/?find=2023-sea-doo-rxp-x-apex-300-247635\" class=\"applicationInfo\" data-mce-href=\"https:\/\/rivaracing.com\/amfinder\/?find=2023-sea-doo-rxp-x-apex-300-247635\"\u003e2023 Sea-Doo RXP-X Apex 300\u003c\/a\u003e\u003c\/li\u003e\n\u003cli\u003e\u003ca href=\"https:\/\/rivaracing.com\/amfinder\/?find=2022-sea-doo-rxp-x-300-247443\" class=\"applicationInfo\" data-mce-href=\"https:\/\/rivaracing.com\/amfinder\/?find=2022-sea-doo-rxp-x-300-247443\"\u003e2022 Sea-Doo RXP-X 300\u003c\/a\u003e\u003c\/li\u003e\n\u003cli\u003e\u003ca href=\"https:\/\/rivaracing.com\/amfinder\/?find=2021-sea-doo-rxp-x-300-243351\" class=\"applicationInfo\" data-mce-href=\"https:\/\/rivaracing.com\/amfinder\/?find=2021-sea-doo-rxp-x-300-243351\"\u003e2021 Sea-Doo RXP-X 300\u003c\/a\u003e\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"product-add-form\" data-mce-fragment=\"1\"\u003e\u003cform data-product-sku=\"RS-RPM-RXPX300-21-1\" action=\"https:\/\/rivaracing.com\/checkout\/cart\/add\/uenc\/aHR0cHM6Ly9yaXZhcmFjaW5nLmNvbS9yeHAteC0zMDAtMjAyMi1zdGFnZS0xLWtpdC5odG1s\/product\/42740\/\" method=\"post\" id=\"product_addtocart_form\" enctype=\"multipart\/form-data\" novalidate=\"novalidate\" data-mce-fragment=\"1\"\u003e\n\u003cdiv class=\"product-options-wrapper\" id=\"product-options-wrapper\" data-mce-fragment=\"1\"\u003e\n\u003cdiv class=\"fieldset\" tabindex=\"0\" data-mce-fragment=\"1\" data-mce-tabindex=\"0\"\u003e\n\u003cdiv class=\"field\" data-option_id=\"89\" data-mce-fragment=\"1\"\u003e\n\u003cdiv class=\"control\" data-mce-fragment=\"1\"\u003e\n\u003cdiv class=\"options-list nested\" id=\"options-89-list\" data-mce-fragment=\"1\"\u003e\n\u003cdiv class=\"field choice admin__field admin__field-option\" data-option_type_id=\"173\" data-mce-fragment=\"1\"\u003e\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/form\u003e\u003c\/div\u003e","brand":"Riva","offers":[{"title":"Default Title","offer_id":51067156627767,"sku":"RS-RPM-RXPX300-21-4","price":6741.16,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0952\/0549\/0999\/files\/rxp14_0e647e7b-9978-4116-86ee-ec8457a9a595.jpg?v=1757598104","url":"https:\/\/deanstrong.cc\/products\/riva-sea-doo-rxp-x-2021-2023-stage-4-kit","provider":"My Store","version":"1.0","type":"link"}