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4 Liter W55
Invidia 12+ Subaru BR-Z/FR-S Gemini/R400 Single Layer Titanium Tip Cat-back Exhaust
and are air adjustable from 5 to 100 PSI
Angle-cut bright chrome on T-304 stainless steel tips
aFe MACHForce XP Exhaust 304SS Cat-Back w/ Polished Tips 12-13 BMW M5 (F10) V8 4.4L (tt) 2003-infiniti-i35-esi1968718 4 Liter W55aFe introduces the MACH Force XP exhaust system for the BMW M5 F10 twin turbo. In recent testing this system produced 18 horsepower and 30 lbs. x ft. of torque. This unique exhaust system is constructed from TIG welded, 3 in. mandrel bent 304 stainless steel and uses quad, high flow mufflers. This system was designed and engineered by tuning the perfect tube lengths, ultimately maximizing performance across the power band while maintaining a great
