Red Bull has not listed any changes to the RB20 for the Belgian Grand Prix, one of three teams not to introduce changes at Spa-Francorchamps.
However, it is believed Max Verstappen will run the traditional engine cover this weekend, not the upgraded part he had for the Hungarian Grand Prix - Sergio Perez has yet to have used that new component.
Mercedes is the only front-running team to bring major developments to its car at in Belgium.
The German marque is introducing a spate of updates to the W15, as well as track-specific, low-downforce changes. Many of its rivals, however, are only bringing the latter type of change to Spa-Francorchamps.
Specifically, Mercedes is bringing an upgraded diffuser, floor edge and beam wing. Additionally, it is running a track-specific front wing and halo, both designed to reduce drag.
Red Bull's closest rivals at moment, McLaren have submitted three track-specific components: a track-specific and low-downforce rear wing, a low-drag rear corner and an accompanying beam wing to balance the trade-off between drag and downforce.
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Ferrari, meanwhile, has introduced its low downforce front and rear wings, both of which are key to achieving strong lap times around the high-speed Spa-Francorchamps circuit.
Like Red Bull, neither Aston Martin nor Williams have submitted any updates for the Belgian Grand Prix.
Alpine and Stake lead the way amongst the second half of the grid in terms of developments for round 14 of the season.
The Enstone-based team is introducing a new engine cover and sidepod configuration, as well as a new wing mirror geometry to "achieve better flow quality towards the rear of the car." Additionally, it has a new low-downforce front wing.
As for its track-specific changes, Esteban Ocon and Pierre Gasly will run an updated rear corner, beam wing and rear wing layout.
Stake has also changed its wing mirror profile, for the same reason as Alpine. However, it has not brought a changed engine cover to Spa-Francorchamps like the French team has.
In addition to its own upgrades front wing, rear wing and beam wing - the latter part focused on reliable over performance - there is also a updated floor fence.
Haas has made changes to its rear and beam wings, both focused on drag reduction.
Lastly, RB has brought a new rear corner, beam wing and rear wing assembly to Belgium - all of which the team has listed as circuit-specific.
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