ALPHA Performance R35 GTR Billet Exhaust Manifold Flange Kit (ALP.07.14.0015-1) 14420 Muffler contains Polyphonic Harmonizer technology

Muffler contains Polyphonic Harmonizer technology which utilizes patented units that contain pipes of different diameters and lengths to create multiple exhaust notes that harmonize to deliver a clean

Improves under and oversteer balance

Vehicle-specific fitment ensures proper integration with F80 M3 and F82 M4 models

120 Wall Headers

and a special resonator eliminates unwanted drone

ALPHA Performance R35 GTR Billet Exhaust Manifold Flange Kit (ALP.07.14.0015-1) 14420 Muffler contains Polyphonic Harmonizer technologyENGINEERED TO PERFORM The Alpha R35 GTR Billet Exhaust Manifold Flange Kit was designed in house by AMS Snailworks Engineers to be a super simple solution for the foundation of your race car exhaust. These high quality 304 stainless steel billet components save you time and money. The flanges are designed for use with 2 primaries. Each one of the six ports feature a 1 8 NPT for an EGT sensor. Our Engineers left extra material in the design that allows