DNA Exhaust for Honda Civic EF (88-91) Catback w/ Single or Double Wall Rolled Muffler Tip

Fitment Information

• Honda Civic STD / DX / Si Hatchback 1.6L / 1.8L (1988, 1989, 1990, 1991)
• Honda Civic DX, LX, EX Sedan 1.5L / 1.6L (1988, 1989, 1990, 1991)   
  
  • Chassis:
    • STD / DX / Si Hatchback - EF
    • DX, LX, EX - EF1 / EF3 / EF4
  • Engine: 
    • STD / DX / Si Hatchback 
      • 1.5L SOHC 8-valve (D15B1) 
        
      • 1.5L SOHC 16-valve (D15B2) 
        
      • 1.6L SOHC 16-valve (D16A6) 
    • DX / LX / EX
      • 1.5L SOHC 16-valve (D15B2) 
        
      • 1.6L SOHC 16-valve (D16A6) 
  • Transmission:
    • STD / DX / Si Hatchback - 4 or 5 Speed Manual / 4 Speed Automatic
    • DX / LX / EX - 5 Speed Manual or 4 Speed Automatic
• Select fitment in drop down before ordering

Specs & Features

• Tip Option:
  • Single-walled Rounded Tip
    
  • 14mm Double-walled Rolled Tip
• Inlet / Outlet Diameter: 2.25" OD 
  
• Tip Diameter (IN): 4" OD
• Tip Finish: Polished
• Material: Premium T-304 stainless steel for long-lasting strength and corrosion resistance.
  
• Mandrel Bends: CNC mandrel-bent piping ensures smooth airflow and maximum exhaust velocity.
  
• Construction: TIG-welded, CNC flanges deliver tight seals and durability under pressure.
  
• Sound: Deep, aggressive tone — throaty at throttle, smooth while cruising, no harsh rasp.
  
• Performance: Dyno-proven improved torque and throttle response. Aggressive deep and smooth tone while ensures smooth exhaust gas flow, increase engine output and efficiency.
  
• Design: JDM-inspired racing design built for both track performance and street use.
  
• Fitment: Includes gaskets and hardware for an easy, bolt-on or clamp-on installation.

Standard Warranty

All DNA Motoring products come with a 30-day limited manufacturer’s warranty covering defects in materials and workmanship under normal use. This warranty does not cover wear and tear, misuse, or improper installation.

⚠️ Extend Product Protection Recommended
To ensure peace of mind and protect your investment long-term, we strongly recommend purchasing an Extend product protection plan available during checkout. Extended coverage can offer added security & support beyond the standard 30-day warranty period.