Aprilia RS 457 SC Project Electronic Catalytic Remover 2024-2025

Aprilia RS 457 SC Project Electronic Catalytic Remover 2024-2025

1. Introduction & Purpose

The SC‑Project ECR (Electronic Catalytic Remover) for Aprilia, part number A‑ECR01, is a specialized electronic sc-project-electronic-catalytic-2024-2025-remover-for-aprilia-rs-457/ module designed to seamlessly manage the removal of the catalytic converter on Euro 5+ motorcycles—specifically the Aprilia RS  457 ecr 2025.

Why it exists: When removing the OEM catalytic converter—typically associated with installing a racing full exhaust or cat‑delete link pipe—the stock ECU detects the absence of the catalytic component and often triggers a persistent error code. This can impact engine management, performance, and the overall ride experience. To rectify that, the ECR module connects to the OBD port and substitutes the missing catalyzer signal, allowing the ECU to function normally without error codes or limp‑mode activations.

2. Compatibility & Fitment

• Designed specifically for the Aprilia RS 457, years 2024 and 2025.

• Packaged along with the SC1‑S or S1 full exhaust systems sold for the RS 457, ensuring full compatibility and plug‑and‑play integration.

• SC‑Project clearly states that this module is intended for racing or track use only, and it’s not homologated for road‑legal use in regions where emissions compliance is mandatory .

3. Technical Details & Functionality

• Part Number: A‑ECR01

• Price Point: Approximately €195 in Europe; in Australia retail listings show around AUD 440; in the US, it retails near USD 295 depending on the distributor.

• Function: Acts as a dummy interface to “tell” the ECU that the catalytic converter is still present. It prevents error codes and ensures that all systems—such as O₂ sensors, engine maps, and diagnostics—continue to function without fault signals.

• Installation: Simple and fully plug‑and‑play. It connects directly into the bike’s OBD socket; no complex wiring or ECU reflashing is required to function. However, SC‑Project does note that ECU remapping is not required but still recommended to optimize fueling after removing the cat and installing a free‑flow exhaust.

• Regulatory Note: Because it enables cat deletion, the overall system does not meet European emission standards, and is legally restricted to track usage only in many jurisdictions.

4. How It Works

When the catalytic converter is removed:

• The ECU expects certain sensor values downstream of the cat. Without the cat, the sensor readings diverge from expected thresholds.

• The ECR module uses electronics to simulate the expected readings or signal behavior.

• By emulating these values, it prevents the ECU from flagging a fault or entering diagnostics/error modes.

• Functionality remains intact—traction control, ride modes, power delivery remain unaffected; only the fake catalytic signal is replaced.

5. Installation Process

1. Pre‑installation: Ensure the bike is powered off and located in a safe environment.

2. Locate the OBD port, typically under the dash or fairing area.

3. Connect the ECR device directly into the OBD socket; it’s designed to fit without additional adapters.

4. Mount the unit using provided zip ties or mounting bracket—most often vendors supply a small plastic cradle or adhesive strip.

5. Power on the bike with the exhaust system already installed. The ECU should start normally without showing the usual “cat removed” fault codes.

6. Test‑ride to confirm no error lights appear and performance is unaffected.

7. Optional tuning: While ECU remapping isn’t mandatory, installing a proper tune (e.g. UpMap, Gabro) can improve fueling and throttle response after cat removal.

6. Package Inclusion

• When purchased as part of the SC1‑S or S1 full exhaust kit for RS 457, the ECR is included in the package by SC‑Project at no additional cost beyond the exhaust system price (~€790 or equivalent) .

• It can also be bought separately as part number A‑ECR01 for users who already removed the catalytic converter or fitted a different system.

7. Real‑World Feedback & Community Insights

Several users have commented on the overall SC‑Project RS 457 exhaust systems, noting especially loud but gratifying tone and improved performance. One user on Reddit shared:

“Having heard a number of SC Project exhausts up close – I’ll just say the tone is great… but it’s obnoxiously loud.”
Your biker buddies will tell you it’s awesome, but most other people hate you.

Although user feedback focuses more on sound and aesthetics of the S1 system, the reliability of the ECR module underlies the smooth running of such systems in actual usage.

8. Benefits at a Glance

9. Considerations & Legal Status

• Legal use: The SC‑Project ECR enables non‑homologated modifications, which may violate emissions rules for public roads. It is explicitly marketed for track or closed‑course use only.

• Warranty considerations: Installing any aftermarket or racing exhaust may void portions of the standard Aprilia warranty; the ECR itself is a third‑party electronic device not covered by OEM service agreements.

• Installation reversibility: Highly reversible—simply unplug it and reinstall the stock catalytic setup if road use is later desired.

10. Summary

The SC‑Project Electronic Catalytic Remover (A‑ECR01) is a key enabler for riders fitting full race exhaust systems to the Aprilia RS 457 (2024–2025). By electronically simulating the presence of the catalytic converter via the OBD port, it avoids persistent ECU faults and ensures clean, uninterrupted engine performance after cat removal. Delivered with every SC1‑S or S1 exhaust kit—or available standalone—the module is easy to install and reversible. Its operation is simple yet effective: eliminate error codes while preserving ride usability.

However, riders must take note of legal constraints: this solution is intended strictly for track use and not street legal under emission-controlled regions. Additionally, while it works without tuning, a fuel map remap is advisable for optimal engine response. Community feedback highlights the overall performance and sound gains, though some warn about high noise levels.