Moderate — 2–4 hours
Description
Fitment
Fitment Guaranteed
Don’t gamble
on fit.
Log your build in the MOTORMIA app and we’ll guarantee this part fits your exact setup — or your money back, return shipping covered.
Available on iOS & Android
Specifications
| Brand | Sundown Audio |
| Part Number | S0FJ SW-XV48D2 |
Videos
WHY WE LOVE THE SUNDOWN AUDIO X8 v4 8" SUBWOOFER!
Sundown audio x8v4 short review
The Ultimate Bass Sweep Torture Testing Sundown Audio 8" Subs - Major Excursion Inside!
Sundown Audio X-8" v.4 Subwoofer
Sundown audio xv4 vs xv3 (8) quick rundown of the differences
Sundown audio x8 v4s in sounding good.
The Sundown X8v4 vs Z8Which is Overall Better Performance and Practicability?
Buy with Confidence
Built for enthusiasts. Every order is backed by our 30 day return window on eligible items. Unused and uninstalled products may be returned with approved RMA and no restocking fees when received in new condition. Orders placed through the MOTORMIA app with a complete build qualify for our Fitment Guarantee — free return shipping if the part doesn’t fit your exact setup. The guarantee covers fit only; installation must follow manufacturer instructions, and we recommend a qualified shop for parts marked Difficulty 4–5.
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