Just Release ERZ performance 06-07 Honda Civic SI Stainless Steel Race header 4-2-1 1 piece design
INCREASE UP TO 15 HORSEPOWER
WILL NEVER GET RUST
Dyno tested and proven
Direct bolt-on without modification
FULL T-304 stainless steel mandrel bend for ultra fast flow
CNC machine flanges with TIG and MIG welded construction
Utilizes factory 02 sensor position
Lifetime warranty from manufacturer defects
