The system is a straight-through design providing substantial improvements to gas flow over the factory exhaust. Gone is the factory flapper to change exhaust tones; this BMW Performance exhaust doesn't need gimmicks to accomplish baritones or suffer from problems like sticking flappers that will happen due to exhaust build up. Instead, the sound come out non intrusive, with a rich mellow tone and delivers a solid 15+hp, with key gains in the mid-range.
We make no claims as to emission performance for street or highway use. Some equipment is not sold for street use in any state or country where state or federal regulations prohibit its use. Some items listed in the online catalog are intended for off road use and for purpose built race cars only. EUROTEK TUNING, LLC does not make any claims of street legal use of these products that are not intended for use on public roads. We are not affiliated with BMW, Mercedes Benz, Volkswagen Audi Group, Porsche AG or any of their subsidiaries. EUROTEK TUNING, LLC is not responsible for errors on our website.