Kwiksen Heated 2pcs Oxygen O2 Sensor 234-4074 234-4092 Upstream&Downstream Replacement For Honda Civic 1.7L D17A1 Engine 2001 2002 2003 (D17A1 Engine Car Only)

The most restrictive part of any exhaust system is the catalytic converter. The stock catalytic converter is meant to filter the flow of exhaust gases to reduce the amount of harmful gases into the atmosphere. Because of this, lots of potential performance is restrained. High Flow Test Pipes eliminate the stock catalytic converter and reduce exhaust backpressure. The result brings out the vehicle's performance potential by giving it a free high flowing exhaust system. Replace for 01-05 Honda Civic EX

Increases High Flow Air Rate and Maximizes Performance
Dyno Proven Increases Low End Torque and Horse Powers; Instantly Gains up to 10 - 15 Hp. / Tq
TIG Welded, CNC Machined Flange and Mandrel-Bent Piping / O2 Sensor Bung Insertion and Metal Gasket Included
Inlet Size: 2. 25" (Inner Piping Inlet Diameter; 3. 00" Outer) / Outlet Size: 2. 25"
Professional Installer is Highly Recommended No Instruction Included
Increases High Flow Air Rate and Maximizes Performance
Dyno Proven Increases Low End Torque and Horse Powers; Instantly Gains up to 10 - 15 Hp. / Tq
TIG Welded, CNC Machined Flange and Mandrel-Bent Piping / O2 Sensor Bung Insertion and Metal Gasket Included
Inlet Size: 2. 25" (Inner Piping Inlet Diameter; 3. 00" Outer) / Outlet Size: 2. 25"
Professional Installer is Highly Recommended No Instruction Included

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