Invidia Q300 Single Exit Cat Back Exhaust – Titanium Tip -2006-2011 Honda Civic Si Sedan

Q300 Single Exit Cat-Back Exhaust with Titanium Tip for the 2006-2011 Honda Civic Si

The Invidia Q300 Single Exit Cat-Back with titanium tip for the 2006-2011 Honda Civic Si provides the Q300’s deep, refined sound and improved flow on the Si’s K20Z3 engine. Titanium burnt tip finish. The resonated Q300 character suits the K20Z3’s high-revving naturally aspirated delivery.

DETAILS

• Single exit
• Burnt titanium tip
• Q300 resonated muffler
• 304 stainless

The Q300 on the K20Z3 Si produces a deeper and more refined sound than the factory exhaust while maintaining a daily-appropriate sound level. VTEC engagement at higher RPM through the Q300 produces the characteristic K-series note the platform is known for.

Titanium burnt tip on the 8th-gen Si is the premium finish for the single-exit rear. Q300 is the daily-appropriate sound option for this platform.

What’s in the Box

• Cat-back exhaust system (all sections)
• Exhaust tips
• Gaskets
• Mounting hardware (nuts, bolts, hangers)
• Installation instructions

Why Choose Invidia

Invidia has been manufacturing performance exhaust systems in Japan since 1999, and in that time they have built a reputation that carries real weight in the tuning community. Every system is manufactured using SUS304 stainless steel and mandrel-bent tubing, which eliminates the flow restrictions and weak points that crush-bent alternatives introduce at every corner. Their in-house engineering team designs each application from scratch rather than adapting a generic template, which is why Invidia fitment is consistently tighter than the competition. The result is an exhaust that installs cleanly, seals correctly, and lasts. Invidia backs their products with a quality standard that is visible in the finish, the weld quality, and the hardware, details that reflect over two decades of refining the same core manufacturing process.

The RallySport Take

Q300 titanium on the 8th-gen Civic Si is for owners who want the K20Z3’s character improved without going aggressive. Daily usability is preserved. Fits the 2006-2011 Honda Civic Si sedan and coupe with K20Z3.

Fitment