# BS Tuning

> No BS.


## Pages

- [My Account](https://coral-porpoise-803480.hostingersite.com/my-account-2/)
- [Checkout](https://coral-porpoise-803480.hostingersite.com/checkout-2/)
- [Cart](https://coral-porpoise-803480.hostingersite.com/cart-2/)
- [Contact](https://coral-porpoise-803480.hostingersite.com/contact/): Send us your hull model, engine details, and any modifications you have in mind.
- [About](https://coral-porpoise-803480.hostingersite.com/about/): BS Tuning works on a defined range of Yamaha, Kawasaki, and Sea-Doo four-stroke platforms.
- [Resources](https://coral-porpoise-803480.hostingersite.com/resources/): Practical documentation for EFI setups on supported Yamaha, Kawasaki, and Sea-Doo platforms, covering sensors, harnesses, fuel delivery, and basic diagnostic logging.
- [Tuning Services](https://coral-porpoise-803480.hostingersite.com/tuning-services/): Calibrations are matched to specific bolt-on modifications and fuel octane, so every reflash starts from the setup you actually run.
- [Home](https://coral-porpoise-803480.hostingersite.com/): BS Tuning builds EFI calibrations, tuning devices, and hardware packages for select four-stroke Yamaha, Kawasaki, and Sea-Doo PWCs.
- [My account](https://coral-porpoise-803480.hostingersite.com/my-account/)
- [Checkout](https://coral-porpoise-803480.hostingersite.com/checkout/)
- [Cart](https://coral-porpoise-803480.hostingersite.com/cart/)
- [Shop](https://coral-porpoise-803480.hostingersite.com/shop/)

## Products

- [Fuel Blend Review](https://coral-porpoise-803480.hostingersite.com/product/fuel-blend-review/): A technical review of the watercraft’s ECU, injectors, fuel system, and current calibration to assess whether an ethanol blend such as E85 is appropriate for that specific setup. The review is an assessment, not a promise of compatibility or a ready-to-run E85 tune.
- [Application Camshaft](https://coral-porpoise-803480.hostingersite.com/product/application-camshaft/): An application-specific four-stroke camshaft supplied only after confirming the engine family and intended configuration. Review valve-train condition and supporting hardware with a tuner before ordering; fitment and calibration requirements vary.
- [Exhaust Outlet Kit](https://coral-porpoise-803480.hostingersite.com/product/exhaust-outlet-kit/): An application-specific exhaust outlet kit with a stainless outlet component, marine-rated coupler, and mounting hardware for selected four-stroke PWC layouts. Confirm the watercraft and existing exhaust configuration before purchase; installation requirements vary by application.
- [Marine Intake Kit](https://coral-porpoise-803480.hostingersite.com/product/marine-intake-kit/): A watercraft intake kit consisting of an application-specific adapter, filter element, and protective splash shield for eligible four-stroke setups. Confirm engine layout and available space before ordering; intake changes may require calibration review.
- [Stainless Impeller](https://coral-porpoise-803480.hostingersite.com/product/stainless-impeller/): A stainless-steel replacement impeller offered by confirmed watercraft and pump application, with pitch selected for the craft’s engine setup and intended use. Check model, year, pump details, and existing modifications before choosing a configuration.
- [Wideband O2 Kit](https://coral-porpoise-803480.hostingersite.com/product/wideband-o2-kit/): A wideband oxygen sensor kit with sensor, controller, wiring harness, and compact display for monitoring exhaust mixture during tuning. Installation location and compatibility depend on the exhaust configuration; verify the application and use appropriate marine installation practices.
- [Four-Channel Data Logger](https://coral-porpoise-803480.hostingersite.com/product/four-channel-data-logger/): A compact four-channel logger for recording selected engine and tuning signals during setup and testing, supplied with its sensor leads and USB connection cable. Sensor type, channel assignment, and application fit should be confirmed for the intended craft before ordering.
- [Custom Performance Package](https://coral-porpoise-803480.hostingersite.com/product/custom-performance-package/): An application-built package combining a verified ECU calibration with selected supporting hardware for an eligible Yamaha or Kawasaki four-stroke PWC. Package contents and fitment are confirmed against the craft’s year, engine, and current modifications before the order is finalized.
- [Flash Interface Device](https://coral-porpoise-803480.hostingersite.com/product/flash-interface-device/): A reusable ECU programming interface supplied with a vehicle-side harness and connection cable for supported applications. Confirm the exact watercraft model, year, and ECU before ordering; device compatibility is application-specific.
- [ECU Reflash Service](https://coral-porpoise-803480.hostingersite.com/product/ecu-reflash-service/): A bench reflash service for eligible four-stroke PWC ECUs, with calibration scope set after reviewing the exact model, year, ECU, and engine setup. Send the ECU and setup details for a fitment check before purchase; no power or reliability outcome is promised.


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