FIA to Ban Exhaust Wings in 2027 Following Ferrari-Triggered Development War
The FIA is preparing to clamp down on the controversial exhaust wing designs that have rapidly proliferated across the Formula 1 grid this season, with plans to outlaw the aerodynamic devices for the 2027 campaign.
The development war, initially triggered by Ferrari during pre-season testing, has seen teams aggressively exploit a loophole in the technical regulations, prompting the sport's governing body to intervene before the situation escalates into a full-blown, costly tech war.
Ferrari’s Ingenious Loophole Exploitation
The controversy began when Ferrari arrived at the final pre-season test sporting an innovative wing solution mounted behind its rear tailpipe. While aerodynamic devices in this specific area of the car are generally frowned upon by the regulations, the Scuderia found a clever workaround.
Dubbed the "flick tail mode" (FTM), Ferrari’s concept capitalized on allowances for extra components fitted close to the gearbox. By making unique design choices regarding the positioning of its gearbox relative to the rear crash structure, the Maranello squad created the necessary space to mount a wing designed to manipulate hot exhaust gases for aerodynamic gain.
Ferrari’s customer team, Haas, which purchases its rear-end architecture from Maranello, quickly followed suit, introducing its own version of the exhaust wing at the Chinese Grand Prix. Initially, other teams were unable to replicate the design due to the restrictive positioning of their own gearboxes.
The Grid Catches On
However, the competitive nature of Formula 1 meant Ferrari’s advantage was short-lived. Ahead of the Miami Grand Prix, rival engineers deciphered an alternative method to introduce exhaust wings.
By the time the cars hit the track in Florida, six teams—McLaren, Mercedes, Red Bull, Williams, Alpine, and Cadillac—had all integrated their own distinct wing concepts. This rapid adoption was achieved through a clever exploitation of Article C3.9.2 of the F1 technical regulations.
The rule permits a single exhaust tailpipe "support" but crucially fails to explicitly define the limitations of this support, provided it falls within the legality boxes for both the exhaust tailpipe and the crash structure, and straddles the two.
The FIA’s Planned Intervention
While the FIA has confirmed that all current exhaust wing designs comply with the existing regulations, sources indicate that the governing body is eager to close the loophole for next year.
The primary concern is the prevention of increasingly complex and expensive aerodynamic trickery in the exhaust region. The FIA is keen to nip this development avenue in the bud, viewing a proactive ban as preferable to allowing a full-scale technical war to unfold.
Although no formal decision has been finalized, team sources have revealed that the FIA has clearly communicated its intentions. Discussions are now expected to commence with technical chiefs across the grid to frame the necessary rule changes.
Because the proposed ban is not rooted in safety concerns, any regulatory amendments to outlaw exhaust wings will require the support of the teams and must be voted through official F1 channels.
This move to ban exhaust wings follows recent revelations that the FIA is also scrutinizing the "halo wings" introduced by Ferrari earlier this year, signaling a broader crackdown on peripheral aerodynamic exploitation as the sport looks toward the 2027 regulations.
Source: The Race
Simone Scanu
He’s a software engineer with a deep passion for Formula 1 and motorsport. He co-founded Formula Live Pulse to make live telemetry and race insights accessible, visual, and easy to follow.