Unleash your Honda Civic SI or Acura RSX’s full performance potential with these stainless steel headers. Unlike restrictive factory manifolds that muffle your engine’s roar, these long tube headers maximize airflow and boost horsepower so you can tear up the tarmac. Built from mandrel-bent stainless steel tubing for durability, these headers withstand high heat and resist corrosion for years of peak performance. Their equal-length design optimizes scavenging for high-rpm power and a throaty growl that will turn heads on the street or track. For the ultimate in tunability, these headers are a must-have upgrade whether you’re fine-tuning your suspension for the circuit or building a show-stopping street machine. Why rein in your Honda or Acura when you can uncork its inner beast? With these stainless steel headers, your ride’s true power is finally unleashed.