STILLEN's Cat Back Exhaust Systems are built for power and sound. The STILLEN Cat Backs for the 2.5L and 3.5L Altima Sedans do not dissapoint in either department with respectable gains at the wheels and the signature STILLEN rumble! Power is increased across the entire power band along with a noticeable gain up top.

Mileage gains during highway travel can be expected as you cruise at steady speeds. The free flowing performance pipes and mufflers are stainless steel for long life. As always, the fit and finish are second to none. When you need an exhaust for your new Altima, STILLEN is the clear choice.

Click HERE for the Press Release with hi-res photos.