The FIA has tightened the 2027 regulations to ban the exhaust wing that Ferrari introduced during pre‑season testing in Bahrain. By exploiting a loophole in the 2026 rules, Ferrari routed exhaust gases to a tiny winglet perched on the tailpipe, gaining extra rear downforce. The governing body moved to close that gap before the season starts. The move preserves aerodynamic parity.

Mercedes and other rivals already tried a smaller tailpipe bracket as a makeshift wing after Miami, but the revised Article C2.3.7 creates an exclusion cylinder that forbids any bodywork within 20 mm of the exhaust axis. The new text also revises C3.9, tightening limits on floor stays, side‑pod interaction and damper behaviour for all constructors, curbing further aerodynamic gambits.

Ferrari tested the device in Austrian FP1 with rookie Dino Beganovic while Lewis Hamilton ran the wing on his SF‑26, suggesting a side‑by‑side comparison before a possible switch to a cleaner rear end for low‑drag tracks like Monza. With the ban now official, teams must revert to conventional exhaust designs, ending what could have become a costly aerodynamic arms race.