R35 GTR Alpine R Slope Subwoofes and Box


Twin Slope Alpine

Picture 1 of 3

Looking to upgrade the bass in your R35 GT-R from the factory Bose system? The Alpine Twin 8 Slope Bass upgrade is a custom limited edition system that delivers the most performance with remarkable clarity. The Alpine Twin 8 Slope delivers bass you not only hear, but feel. Characterized by black chrome metallic cones and a hand shaped face, this system looks as great as it sounds. The twin sloped enclosure features more internal volume and increased structural rigidity when compared to the classic version. A stiffer enclosure with more volume results in more accurate and deeper bass. Due to the highly custom nature of enclosure construction, this is a limited edition item. This system can be heard over any aftermarket exhaust. This item is for the subwoofers and enclosures only. It does not include an amplifier. This kit includes:

  • Xtreme Audio twin 8″ sealed custom sloped subwoofer enclosure
  • 2 Alpine 8″ subwoofer
  • Mounting hardware

Out of stock



Alpine Slope Interior

Picture 1 of 2


  • 700RMS watts (continuous power handling)
  • 2000 watts (burst / peek power handling)
  • 2 ohm load
  • 14mm linear excursion
  • Gold plated speaker terminals
  • 10 gauge pure copper speaker wire