2009-2014 acura TL pre cat delete

The 4th gen tl pre cat delete oem offers significant performance benefits, including increased horsepower, improved throttle response, and a more aggressive exhaust note. However, it is important to note that this modification is generally not street-legal and may require tuning and additional components to prevent a check engine light. It is ideal for those seeking performance improvements in a track or off-road setting.

4th gen tl pre cat delete oem Overview

• Compatibility: 2009-2014 Acura TL (both base and SH-AWD models).
• Engine Compatibility: 3.5L V6 (J35) and 3.7L V6 (J37) engines.
• Purpose: The pre-cat delete removes the restrictive catalytic converters located in the exhaust manifold, allowing for better exhaust flow, increased power, and improved throttle response.

Key Features

• Material: Typically constructed from high-quality stainless steel to prevent corrosion and ensure long-lasting durability.
• Design: Direct bolt-on design for the Acura TL to replace the factory pre-catalytic converters, usually designed with mandrel-bent piping for maximum airflow.
• Performance Gains:
  • Horsepower Increase: Can increase horsepower by 5-15 HP, depending on other supporting modifications.
  • Torque Increase: Improved torque, particularly in the mid and high RPM range.
  • Reduced Exhaust Backpressure: Enhances engine efficiency and throttle response by reducing exhaust restriction.
• Weight Reduction: Lighter than the factory catalytic converters, contributing to a small reduction in overall vehicle weight.

Emissions and Check Engine Light (CEL)

• Emissions: Removing the pre-catalytic converters will typically make the vehicle non-compliant with emissions regulations in most regions. These modifications are generally intended for off-road or race use only.
• Check Engine Light: The removal of the pre-cat may trigger a check engine light (CEL). An O2 sensor simulator (or defouler) or ECU tuning will likely be required to prevent the CEL.

Installation

• Bolt-On Installation: The pre-cat delete is designed for a direct bolt-on fitment, using existing mounting points. May require new gaskets, hardware, or O2 sensor extensions depending on the setup.
• Installation Time: Approximately 2-4 hours depending on experience and tools available.
• Tools Required: Basic hand tools, including sockets, wrenches, and a lift or jack stands for undercar access.

Tuning Requirements

• ECU Tuning: Required to optimize performance and prevent CEL from O2 sensor readings. Common software options include Hondata or other Acura TL-specific tuning platforms.

Sound and Driving Experience

• Exhaust Sound: Removing the pre-cats will result in a louder exhaust tone, especially under throttle. Expect a more aggressive exhaust note compared to the stock setup.
• Improved Throttle Response: The reduced restriction allows the engine to breathe better, offering quicker throttle response, especially at higher RPMs.

Warranty and Legal Considerations

• Warranty: Installing a pre-cat delete may void the vehicle’s warranty due to the removal of emissions equipment.
• Legal Compliance: Pre-cat deletes are typically for off-road or track use only, as they remove essential emissions control components required for street-legal compliance.