The Regu.06 & R H21379 is a premium, JASMA-certified stainless steel exhaust system engineered for the 8th-generation Honda Civic FD1 with the R18A engine.

Designed as a replacement for the original front muffler, this system delivers a richer exhaust note, improved flow, and a subtle single-side exit design—providing a performance and aesthetic upgrade backed by official JASMA certification for quality and sound compliance.

Product Highlights

🔰 OFFICIAL JASMA CERTIFICATION FOR QUALITY & SOUND
Carrying official JASMA certification (03S13164), this exhaust system meets stringent industry standards for material quality, construction, and sound output. It provides a trusted, performance-oriented upgrade for pre-2010 models, ensuring a balanced and compliant exhaust note.

🔊 BALANCED AND REFINED ACOUSTIC SIGNATURE

• Nearby Exhaust Noise: 89 dB

• Idling Noise: 61 dB
  The integrated 130mm resonator ensures a sporty yet sophisticated sound without drone.

🔧 DESIGNED FOR FD1 CIVIC MODELS (PRE-2010)
A direct-fit system designed specifically for 2005-2010 FD1 Civic models, replacing the restrictive factory front muffler section. The front pipe is recessed for optimal clearance and fitment.

• Compatible with: Honda Civic FD1 (1.8S, 1.8GL, 1.8G, 1.8B) with R18A engine.

• Note: Compatible with Modulo/Mugen Aero kits, though the tailpipe will sit inside the bumper. *Not compliant with 2010+ acceleration noise regulations.*

🏗️ QUALITY STAINLESS STEEL CONSTRUCTION
Manufactured from high-grade stainless steel for lasting durability. The 3-piece design with a recessed front section ensures optimal ground clearance and a seamless fit, culminating in a single 90mm right-side tailpipe for a clean, understated look.

Technical Specifications & Application

This is a JASMA-certified stainless steel exhaust system (front muffler replacement) for the Honda Civic FD1.

Key Details

• Product Name: Regu.06 & R Performance Exhaust System

• Product Code: H21379

• JAN Code: 4512355187214

• Stock Status: In Stock

Vehicle Compatibility
HONDA CIVIC (FD1 – 1.8L R18A)

• Chassis Code: DBA-FD1

• Engine: 1.8L Naturally Aspirated (R18A)

• Drivetrain: FF

• Grades: 1.8S, 1.8GL, 1.8G, 1.8B

• Model Years: September 2005 – March 2010

• Transmissions: 5-speed Manual / 5-speed Automatic
  Critical Note: Not compliant with vehicles subject to the 2010 acceleration noise regulations (April 2010 onward).

Construction & Dimensions

• Material: Full Stainless Steel

• Pipe Diameter: 60 mm

• Resonator Diameter: 130 mm

• Tailpipe Diameter: 90 mm

• Exit Configuration: Single, Right Side

• Assembly Sections: 3

• Product Weight: 11.9 kg (OEM Reference Weight: 13.1 kg)

• Shipping Weight: 18.6 kg

• Packaged Dimensions: 1400 mm × 350 mm × 500 mm

• Key Feature: Front piece recessed design; replacement for original front muffler.