Stillen® 508321 - Stainless Steel Axle-Back Exhaust System with Split Rear Exit

For the majority of the time the factory exhaust sound heard is a factory tone, quiet and no noise at all, until stepping on it, hearing mostly the high revolutions of the engine. The factory exhaust is quiet with a lot of restriction in performance compared to what it could potentially gain from an aftermarket exhaust.
With the Slip-fit connectivity this exhaust system is a simple install that can be performed in your driveway at home in a few hours. The exhaust system has polished adjustable tips for all types of applications and fitments for the variety of valance diffusers on the market.
The Stillen Stainless Steel Axle-Back Exhaust System for 2016-2017 Nissan Altima [L33] 2.5 + 3.5 Sedan, looks factory on the outside but has a secret weapon mixed in behind the axle-back system. Opening up the throttle and getting the most out of the engines performance was a goal of the Stillens Axle-Back Exhaust for the L33. At start up the exhaust note sounds quiet like factory with a little gargle at low RPMs and little raspy at high RPMs, but sounds like a turbine airplane on the fly by.
Featured in this picture along with the Stillen Axle-Back Exhaust System is the Stillen Matte Black Rear Bumper Valance Diffuser for 2016 + Nissan Altima L33.

Power is the primary purpose of the Stillen Exhaust System on your car. However, sound is a close second. With an authoritative growl that has become easily recognized at the Stillen trademark sound. This exhaust is mild at low RPM and comes alive when pressed into the higher RPM ranges. The free flowing mufflers keep the sound down when you want to be civilized but let you be heard when you want to let loose.