Borla Product Description: Wake your 6.4L Hemi up with this awesome new S-type exhaust from Borla. This great system uses Borla’s S-type mufflers to create an aggressive sound, without being over powering. The system is fabricated from all 304 stainless, 2.75 Stainless steel, and includes a high flow X-pipe. Want a less aggressive sound? See Atak Exhaust PT# 140633.