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Electronic Valve Control: Switch between aggressive and refined sound instantly
H-Pipe Design: Improves scavenging for a fuller
free-flowing tone with improved top-end character
it’s a complete transformation in tone
For non-m sport or 4 cyl applications
Audi TTRS MK3 Valved Sport Exhaust System fits_1999-2003`Mazda`Protege Electronic Valve Control: Switch betweenAudi TTRS (Mk3) Valved Cat Back Exhaust System 3" T304 Stainless Steel with OEM Style Electronic Valve Control Overview The five cylinder soundtrack is iconicthe factory cat back just keeps it on too short a leash. The Valvetronic Designs Valved Cat Back for the Mk3 TTRS increases system diameter to 3 inches for significantly improved flow and a sharper, more characterful note without sacrificing daily comfort. At the heart of the design is our rear Y
