R35 GTR Twin S-W8D2 Box


This item is for the Gen5 Twin 8 subwoofer enclosure equipped with Alpine S-W8D2 subwoofers that produce significant bass output at an unbeatable price. The S-series alpine subwoofers leverage many similar technologies as the other more expensive versions such as HAMR surround, dual voice coils, and multi-stacked magnet. An advantage of the S-Series subwoofers is that they perform well and are the lightest option available. If you want a light setup that performs very well and doesn’t break the bank, this is the setup for you. The Alpine S-W8D2 subwoofers are a high-performance subwoofer that produces bass that can truly be heard over any aftermarket exhaust. Note: You will need a power supply such as the Xtreme Audio Plug and Play, or an amplifier and processor that you supply on your own. This enclosure will fit all GTR model years.

Housing the subwoofers is the highly regarded Gen5 twin 8 curved subwoofer enclosure. The enclosure is built from 5/8″ MDF material for structural rigidity and sound quality. Enclosures are designed with a thicker face to recess the subwoofers and prevent baffle flex while incorporating internal corner bracing to reduce air turbulence. Internal airspace is further expanded using a calculated area of BlackHole stuffing. Threaded inserts are built into each enclosure on the sides and rear for using bolts for mounting and attaching accessories as opposed to screws. Enclosures are finished with gold hardware, gold terminals, and a 1/4″ layer of high density foam with upholstery that is nearly identical to the factory GTR interior. A rear centre console cover and rear deck cover is included to carry the OEM stitching from the front arm rest, through the rear console, and onto the subwoofer enclosure.

This kit includes:

  • Xtreme Audio twin 8″ sealed curved subwoofer enclosure
  • 2 Alpine S-W8D2 subwoofers
  • Enclosure mounting brackets and hardware
  • Rear console cover
  • Rear deck cover

Out of stock


 Technical Specifications

  • 600 RMS watts (continuous power handling).
  • 13mm excursion
  • 83 db sensitivity
  • 194cm^2 Surface area (per sub)
  • 2 ohm load
  • Gold plated speaker terminals
  • 10 gauge pure copper speaker wire

Please see the comparative sound chart below. Note that the phrasing is very generalized and the performance and sound quality are excellent for all options. There are however slight differences between the final sound of each system as a result of the different technologies that each subwoofer manufacture uses such as their cones, venting, magnets, etc.