Xtreme Enclosures

****ALL SALES ARE FINAL, SOLD AS IS**** Specs: Carpet Color: Charcoal Add Polyfill: No Cutout size: Dual (9 1/4 inch Cutout) THIS SPEAKER BOX ALLOWS YOU TO USE ALL OF THE ROOM UNDER THE SEAT FOR...

PLEASE MEASURE UNDER THE SEAT HEIGHT TO CONFIRM 2019 NEW STYLE SHOULD MEASURE 10.5" UNDER THE SEAT. PLEASE CALL WITH ANY QUESTIONS. AIRSPACE 1.0 CUBIC FT MOUNTING DEPTH GREATLY VARIES.

WE HAVE A SINGLE 10 PORTED SUBWOOFER BOX TO FIT UNDER THE DRIVER SIDE BACKSEAT OF YOUR 2019-UP CREW CAB SILVERADO/SIERRA TRUCK. THIS IS A GREAT FIT AND WILL WORK FINE WITH AMOST ANY 10'' WOOFER ON...

We have designed a box for the 2019 Siverado crew cab trucks. This ported box is designed for 4 8s. This new seat style allows for very large 8" woofers to tuck right under the seat. We have internal...

THIS IS DESIGNED FOR THE DOUBLE CAB FITS PERFECTLY BEHIND THE BACK SEAT Fits one 6.5 inch or 8 inch subwoofer 5/8 inch MDF Mounting Depth = 3 7/8 Subwoofers must have small magnet Charcoal Grey...

Fits dual 8, dual 10 and dual 12 inch subwoofers Subs fire down MDF wood Charcoal Carpet Mounting depth= 5.25 inches for 10 inch subs Mounting depth = 5 inches for 12 inch subs Air space = .8 cu ft...

Fits Single 8 or Single 10 Constructed with 5/8" MDF Mounting Depth= 5 1/8" Air space = .35 cu ft per subwoofer Removal of jack is necessary Specify which side you want the box on and well build it...

SPL BOX DUAL 10 INCH PORTED SUB BOX 2.5 net cubic ft. Adjustable tuning frequency Custom hole diameter cut for your woofer 1.5" baffle LARGE spring loaded screw in terminal MDF furniture grade wood...

Fits 2014-2016 Chevrolet Silverado Crew and GMC Sierra Crew NOTE:  This will not fit the 2014 2500 and 3500 crew cab trucks.  If you have the 2014 2500 and 3500, choose one of our boxes we...

Fits 2009-2014 Ford F-150 Supercrew This sealed sub box built for subwoofers with shallow depth.  We have another sub box for this truck listed separately for subwoofers with larger depth...

SINGLE SUB BOX WITH AMP RACK FITS BEHIND THE SEAT FITS SINGLE 8 SINGLE 10 OR SINGLE 12 MOUNTING DEPTH = 6 INCHES FOR 10 MOUNTING DEPTH = 5.5 INCHES FOR 12 AIR SPACE = 1.0 CUBIC FT SPEAKER TERMINAL...

Fits the 2014 Chevy Silverado 1/2 ton (1500 series) Crew Cab Truck Fits the 2015-2016 Chevy Silverado Crew Cabs and 2015 GMC Sierra Crew Cabs We are the first manufacturer of this box...