2016-2023 Nissan Maxima Subwoofer Box Fitment

2016-2023 Nissan Maxima 8th Gen — subwoofer box fitment

What we researched for this specific generation: where an enclosure actually fits, what the factory speakers are, how the factory audio is wired, and which real builds and commercial products exist for it. Confidence badges say how well each figure is sourced — this is research, not manufacturer spec.

Body styles covered: 4-Door Sedan

Where a box actually fits

These are researched envelopes, not a guarantee. Measure your own vehicle — the numbers here tell you what to expect, not what you have.

Trunk Solid

Location	trunk
Outer bounding box	40"W x 17"H x 29"-37"D
Known obstructions	None specifically documented for this generation. Nissan 2020 spec sheet: the spare is either "Temporary 17 X 4T" or "Full-size (245/40R19)", "located in the trunk" — a full-size spare in the trunk floor limits depth. Which trims get which was not stated.

Starting points

Suggested configurations for this vehicle, not prescriptions. Run the numbers in the Box Builder before you buy anything.

Budget

Subwoofers	keep/upgrade the factory dual 9" Bose subwoofers
Box type	n/a — factory dual-driver system
Location	trunk, factory location

Enthusiast

Subwoofers	1x10" or 1x12" pre-built, quick-disconnect mount
Box type	pre-built, detachable
Location	trunk — confirmed generous depth range up to 37"

Door speaker fitment

Sizes and depths below are what research turned up for this generation. Confirm against your own vehicle before cutting or ordering — trim levels vary.

Front doors Solid

Factory speaker size	Generation-specific flexibility confirmed: front doors on this generation accommodate 6x9", 6x8", OR 6.5" aftermarket speakers — an unusually wide range of compatible sizes for one factory door opening.
Known obstructions	None specifically documented
Adapter bracket needed	unconfirmed

Rear doors Solid

Factory speaker size	6.5" (Bose-equipped trims, confirmed as part of the full system breakdown below).
Known obstructions	None specifically documented
Adapter bracket needed	unconfirmed
Tweeter	n/a — tweeter (Bose trims) is A-pillar mounted, front only

Factory audio integration

Factory amp / premium audio	Bose premium system (this generation, confirmed via a specific forum breakdown): 3x 4" dash speakers, 2x 6x9" front door speakers, 2x 6.5" rear door speakers, and TWO 9" SUBWOOFERS — a genuinely substantial factory system with dual large subs, distinct from a much older Bose spec (2000-2008-era Maxima) that used smaller 6x9" rear-deck subwoofers requiring significant seat/deck disassembly to access — do NOT conflate the two; that older spec belongs to a different, earlier generation not covered by this page. Nissan kits: 2016 S/SV 8 speakers, SL/SR/Platinum "Bose® Premium Audio system with AM/FM/CD w/ 11 speakers w/ Center Point® Surround Stage"; 2020 S 8 speakers, SV and above Bose 11; 2023 SV 8 speakers, SR and Platinum Bose 11. Nissan does not mention subwoofers or sizes (the dual 9" subs above are forum/retail figures, consistent with an 11-speaker total).
Adding subs without a head-unit swap	Confirmed via forum discussion of impedance-matched Bose speaker replacement projects — a documented, careful approach that accounts for the Bose system's electrical characteristics rather than a blind swap.
Head unit	No replacement needed

Known integration products

no single named commercial molded enclosure found, factory dual-9" Bose system and real quick-disconnect owner builds are the primary sourcing

Mounting locations

Trunk Solid

trunk, quick-disconnect pre-built unit
trunk, general

Specific cargo dimension confirmed: 40"W x 17"H x 29"/37"D available for a subwoofer enclosure — a genuinely large trunk depth range for a sedan. Owner-documented approach: pre-built subwoofer units installed with quick disconnects specifically for cargo flexibility, the same detachable-mount philosophy already confirmed on several other vehicles covered here (GV70/G80, Range Rover Sport).

Builds and products found for this vehicle

Outside links. Some are commercial products, some are owner builds posted on forums — the label says which. We do not endorse any of them.

maxima.org forums (2 x 9") off-the-shelf
Generation-specific (8th Gen, explicitly labeled) full speaker-size breakdown, including the dual-9" Bose subwoofer spec.
nicoclub.com (unconfirmed) forum-sourced
Detailed, impedance-matched Bose speaker replacement project write-up.

Build it for this vehicle

Design a box for this vehicle — Enclosure volume, port tuning, and a see-through render.
Door speaker fitment — No measured door depth on file for this vehicle yet, so there is no fit check to run. The page says how to request one.
See the factory speaker locations — Factory speaker sizes, depths and locations we have researched for this vehicle.

Each link opens the tool with this vehicle already selected.

Before you cut anything

Measure your own vehicle. Trim levels, factory subwoofer options, and mid-generation changes all move these numbers, and a box cut to a researched figure that does not match your truck is wasted wood. Where a badge reads Unconfirmed, treat the value as a starting point for your own measurement, not as an answer.