Tomei Expreme Ti 370Z Full Titanium Muffler kit, for 2009 - VQ37VHR: $1003

Tomei Expreme Ti 370Z Full Titanium Mid Y Pipe kit, for 2009 - VQ37VHR: $635

Features an optimized layout and pipe diameter that maximizes performance. When installed together with the Tomei Titanium Cat Straight Pipe and Muffler, even greater weight reduction and performance gains can be achieved

Tomei Expreme Ti 370Z Full Titanium Cat Straight Pipe kit, for 2009 - VQ37VHR: $635

Maximum weight reduction, optimum performance, catless design

90° Mini Cat
For tight fitting spots - it threads into where the O2 sensor would go, and then the O2 sensor threads into it. This O2 cel fix has a miniature catalytic converter built inside and will help get rid of that annoying check engine light you get after modifying your exhaust or removing your catalytic converters, and sometimes even when installing a high flow catalytic converter. Great for use when removing the upper cats installed near the head, yet keeping your rear cats. - $44

The Prosport Mini Cat
This O2 cel fix actually has a miniature catalytic converter built inside and will help get rid of that annoying check engine light you get after modifying your exhaust or removing your catalytic converters, and sometimes even when installing a high flow catalytic converter. Great for use when removing the upper cats installed near the head, yet keeping your rear cats. This threads into where the O2 sensor would go, and then the O2 sensor threads into it… easily - $44