Invidia Q300 Axle-Back Exhaust System. The axle-back exhaust system example is the easiest way to transform the character, sound, and performance of your vehicle without getting too labor-intensive in terms of mechanical know-how. This axle-back system features performance mufflers that are direct replacements for your heavy factory mufflers. The result is an improvement in flow, with a race-inspired sound that will make your overall driving experience much more enjoyable.
