Our Axle-Back Exhaust Systems for the 2014+ Lexus IS250 replaces the typically quiet and restrictive factory muffler and exhaust components with a larger, free flowing straight-thru type muffler. Whereas OEM muffler constructions typically rely on multiple chambers to bounce and absorb sound frequencies.
Nice upgrade over stock. Sounds like a more powerful factory car at start and quiets down on the highway. If you need louder you can replace the resonator before this bolt on muffler. Looks great from the rear.