MBRP 11-15 FORD 6.7L POWERSTROKE 4" T409 TURBO DOWN PIPE - FS9459   GET EVEN MORE EXHAUST FLOW WITH THIS 4" DOWN PIPE. MBRP DOWN PIPES ARE JIG MANUFACTURED TO ENSURE TOTAL ACCURACY. SMOOTH MANDREL BENDS WILL GIVE YOU THE BEST FLOWING FORD DOWN PIPES IN THE INDUSTRY. GAIN EXTRA POWER AND ENJOY THE EGT REDUCTION AS WELL. CONSTRUCTED FROM HEAVY DUTY T409 STAINLESS STEEL YOU CAN COUNT ON THIS PIPE LASTING FOR MANY YEARS TO COME.