AWE's 0FG Exhaust for the Lexus GX 550 Tucks Above the Frame and Kills Two Drone Frequencies

The new Lexus GX 550 turned into an overland favorite almost overnight, and owners have been hanging armor, racks and aux fuel tanks on it ever since. The exhaust is one of the things that gets in the way. AWE's answer, announced October 8, is the 0FG catback for the 2024-and-newer GX 550.

“You get a deeper tone, a quiet cabin at speed, and a system built to keep up with a truck that gets driven properly,” said Josh Davis, creative director at AWE, in the release.

Built around the trail

The front pipes sit above the frame rails to keep skid plate clearance, and they are equal length for tone. The optional high-clearance BashGuard version ends its outlet just after the rear axle, which keeps it street legal, and finishes the outlet with a thick reinforced stainless ring. AWE says the system works with spare-mounted auxiliary fuel tanks and tested it with a Hellivue tank.

Inside, AWE uses its dual-phase 180 Technology to target the two frequencies that cause in-cabin drone on the GX 550, in a straight-through layout. The pipe is CNC mandrel-bent 3-inch and 2.5-inch U.S.-sourced T304L stainless with a 0.065-inch wall, built in-house in Pennsylvania. It bolts on with factory-matched flanges and no cutting.

Why it matters

Most overland exhaust upgrades force a choice between sound, clearance and highway comfort. AWE is claiming all three, plus 50-state compliance, which matters for GX owners in California. Pricing was not in the release; AWE directs buyers to its Lexus site and dealer network. The guarantees are the other selling point. AWE backs the 0FG with its No CEL Guarantee, Perfect Fitment Guarantee and a lifetime warranty, and Davis framed the product around fixing the compromise rather than adding volume. For a truck that might spend a week on washboard roads, a lifetime warranty on stainless pipe hanging under the frame is a real reason to choose it.