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Last Post 25 Dec 2017 10:07 PM by  djsilver
Legality of Rear Fender Flares in SM
 2 Replies
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New Member
New Member

27 Nov 2016 02:54 PM

    I just want to confirm if I add flares like these to my S4, will I still be legal for SM? 


    The only relevant discussion I've found is this, but it still leaves me scratching my head a bit since it references Prepared classes vs Modified when discussing rear fender modifications:


    I would not be removing any material from the rear quarter panel inboard of the hub face and would not modify any portion of the rear door.  Here's the car showing the quarter panel in question:


    Here's an overview of the installation process:


    Thanks in advance for any insight!

    Basic Member
    Basic Member

    27 Nov 2016 10:52 PM
    Totally fine and that particular product has been used on many Street Prepared and Street Modified cars.

    15.2 A (Street Prepared "Bodywork") states:
    (note: Street Modified inherits all rule allowances from the classes below it)

    A. Fenders and bumpers may be modified for tire clearance. This includes the portion of a hood which serves as a fender/wheel well, where applicable. This does not permit modifications to the chassis or bodywork inboard of the vertical plane of the hub/wheel mounting face (at rest, with front wheels straight ahead). Flares may be added although tires may extend beyond the bodywork. Replacement of complete hood, flared fenders, or quarter panels is prohibited. Plastic and rubber wheel well splash shields may be modified or removed for tire clearance and for installation of fender flares as allowed herein.

    You can trim the outer lip of the rear quarter panel as you see fit since it says you can modify the fenders for tire clearance. You can also eliminate the fender liner if need be. You can also add the flares.

    Basic Member
    Basic Member

    25 Dec 2017 10:07 PM

    It won't likely be a problem, but just to be safe, use a straight edge and mark a line on the inside of your rear fender well in-line with the hub-face at normal ride height.   The temptation is to start modifying the metal inner fender well for more travel and you don't want to go inboard of that line.