2016 - 2019 Supra SA400 Rear Larger Than Stock Ballast Bags

These WakeBallast CustomFIT bags are designed to replace the stock rear ballast bags in your 2016–2019 Supra SA400 and unlock the full potential of your boat's existing ballast system. The stock bags leave a significant amount of usable locker space on the table — these bags fill that space properly, adding real weight where it counts and producing a noticeably larger, cleaner wake for surfing and boarding.

Your Supra's factory ballast system was designed to a price point, not a performance point. The rear lockers have considerably more volume than the OEM bags use. By dropping in our CustomFIT bags, you're not modifying anything — you're simply using the space that was already there. The result is more weight, more displacement, and a wake that performs the way this boat was built to perform.

Our bags integrate directly into your boat's existing plumbing and ballast system. Fill and drain from the dash just like before — no new switches, no new wiring, no new pumps needed. It's as close to plug-and-play as ballast upgrades get.

Every WakeBallast CustomFIT bag is designed for a user-friendly DIY install you can knock out in an afternoon in your garage. If you'd rather have a pro handle it, any qualified marine shop can complete the swap in a single service appointment.

What's Included:

• Port 1,050 lb CustomFIT Ballast Bag
• Starboard 1,050 lb CustomFIT Ballast Bag
• Our bags are designed to connect directly to your boat's existing fittings. If you need replacement fittings, additional hose, or barb connectors, add them to your order from our ballast plumbing section — or reach out and we'll make sure you get exactly what you need.