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IE Catback Exhaust System For Audi B9 B9 5 S4 Integrated Engineering
bonitaveilleux edited this page 2 months ago
As a result, the glass pack mufflers end up producing sounds that are more aggressive and louder than the straight-through muffler. This is a little bit different from most original exhaust systems. Today we’ll focus on the cat-back exhaust systems and what makes them stand out. There are the header-back, turbo-back, axle-back and cat-back systems.
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