Some like them thin, some like them thick. If you’re a fan of curvy, Vorsteiner just released its BMW M4 Coupe GTRS4 upgrade package following its debut at SEMA earlier this month.

With the styling kit that was made for Vorsteiner’s 10th anniversary, the M4’s front fenders gain an extra 4 inches (102mm) while the rear quarter panels sit 7 inches (178mm) wider than before.

Newly designed bumpers and side skirts match the GTSR4’s wider panels, with the finishing touch coming from the specially made 3-Piece Forged wheels in 20×10.5J and 20×13.5J respectively to fit the 275 and 345 width tires.

The package is rounded out with an ESS Tuning E-Tronic module boosting output to 550-horses, Brembo brakes upgrade, and a KW suspension.

The Special Edition GTRS4 Package Includes:
• Carbon Fiber Front Bumper with an Integrated Front Splitter Element
• Carbon Fiber Wide Front Fenders with Ventilation (2 inches wider each side)
• Carbon Fiber Aero Side Blade Elements
• Carbon Fiber Wide Rear Fenders (3.5 inches wider each side)
• Carbon Fiber Rear Bumper with an Integrated Rear Diffuser Element
• Vorsteiner 90mm Quad Exhaust Tip Finishers (Options: Brushed | Diamond Black)
• Vorsteiner Embroidered Colored Floor & Trunk Mat Set • Vorsteiner Chrome Trunk Badging
• GTRS4 Forged 3-Piece Wheels, 20×10.5J | 20×13.5J in Gloss Brushed Shadow

Technology Partners:
• Pirelli Tires
• KW Suspension
• Brembo | Race Technologies
• ESS Tuning
• KI Studios
• Gold & Co. London

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