High Efficiency Downpipe Upgrade for Honda Civic, Accord & Acura Integra 1.5T (TSP-HC11-HEDP)

Boost Flow, Power, and Reliability for Your 1.5T Honda or Acura

Unlock performance with the TSP High Efficiency Downpipe Upgrade, engineered for 2022+ Honda Civic, 2018+ Accord, and 2023+ Acura Integra 1.5T models. This EPA-compliant downpipe offers increased exhaust flow, reduced backpressure, and cooler exhaust gas temperatures—all without the need for tuning or triggering a check engine light.

Key Features:

• Fitment: Civic 1.5T (2022+), Accord 1.5T (2018+), Integra 1.5T (2023+)
• EPA Compliant: 4.5" GESI G-Sport 400 CPSI catalytic converter
• No Tune Required: Won't trigger a CEL
• Direct Fit: Compatible with factory and most aftermarket front pipes
• Durable Build: 304 stainless steel construction with fully back-purged welds

Performance Gains:

• Improved throttle response & power throughout the rev range
• Decreased backpressure for better turbo efficiency
• Lower exhaust gas temps for improved reliability

Kit Includes:

• High Efficiency Downpipe Assembly
• Grade 5 Titanium Mounting Hardware
• (3) Titanium Socket Head Screws & Washers
• Lower Gasket
• O2 Sensor Harness Extension

Construction Highlights:

• 304 Stainless Investment Cast Ends
• Smooth-flow 4.5" OD GESI catalytic converter
• Designed to blend turbine outlet & wastegate gases with minimal turbulence

Warranty: 24-month weld warranty. Note: Not for shipment to California. Heat insulation (wrapping/coating) voids warranty.