StoreFront / Interior / BMW Racing Seat Kits and Mounts / VAC Motorsports Seat Extender BMW G8X (M3/M4), F8X, E9X, E46, E36 – Add Up to 4” Seat Travel

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VAC Motorsports Seat Extender BMW G8X (M3/M4), F8X, E9X, E46, E36 – Add Up to 4” Seat Travel MAIN

VAC Motorsports Seat Extender BMW G8X (M3/M4), F8X, E9X, E46, E36 – Add Up to 4” Seat Travel SWATCH

How to extend your factory seat 4 inches for more legroom SWATCH

Factory Seat Extenders installed in vehicle SWATCH

More legroom and back seat clearance SWATCH

VAC Seat Extender includes hardware for easy install SWATCH

Need more leg room while driving? Install the VAC Seat Extenders Mounts for more legroom. SWATCH

VAC Motorsports Seat Extender BMW G8X (M3/M4), F8X, E9X, E46, E36 – Add Up to 4” Seat Travel

VAC Factory Seat Extender adds up to 4” of legroom for tall BMW drivers. Big Man Certified billet aluminum design ensures OEM fit, safety, and comfort.

Price: $499.95

SKU:	VAC-52-FSE-V1

DescriptionCustomer Reviews

VAC Motorsports Seat Extender - Big Man Certified Comfort & Safety

At VAC Motorsports in Philadelphia, we engineer solutions that solve real problems for real drivers. When a 6'6" customer couldn't get comfortable behind the wheel of his new BMW, we designed a precision billet aluminum seat extender kit that adds the legroom taller enthusiasts have been waiting for.

Driving too close to the steering wheel isn't just uncomfortable--it's unsafe in the event of a crash. Our Big Man Certified Seat Extenders relocate the factory seat mounting points rearward by up to 4" (100mm), creating as much as 6" (150mm) of added legroom depending on seat adjustment. The result? A safer, more natural driving position with OEM fit and finish.

🔧 Key Features

Extends factory seat mounts rearward by up to 4" (100mm)
Provides up to 4" (100mm) of additional legroom
Billet aluminum construction - precision machined in-house in Philadelphia
Direct bolt-in design - no cutting or permanent modifications. The seat can easily be installed back to the original location.
Maintains OEM safety and crash standards.
Developed and tested with tall drivers - "Big Man Certified"

✅ Fitment Compatibility

G8X Platform (2021+)

BMW G80 M3 (Sedan)
BMW G82 M4 (Coupe)
BMW G83 M4 (Convertible)

F8X Platform (2015-2020)

BMW F80 M3 (Sedan)
BMW F82 M4 (Coupe)
BMW F83 M4 (Convertible)

E9X Platform (2008-2013)

BMW E90 M3 (Sedan)
BMW E92 M3 (Coupe)
BMW E93 M3 (Convertible)

E46 Platform (2001-2006)

BMW E46 M3 (Coupe & Convertible)
BMW E46 3-Series (select models)

E36 Platform (1992-1999)

BMW E36 M3 (Coupe, Sedan, Convertible)
BMW E36 3-Series (select models)

Universal Fitment

V1 Fits Front to Rear Seat Mounting Distance of 13.22"-14.53"
V2 Fits Front to Rear Seat Mounting Distance of 14.72"-16.03"
Front and Rear Floor Mounts Need To Be on the Same Plane.

📦 What's Included

(2) Floor Mount Extenders (19 ¾" × ¾" × 2")
(2) Flange Bolts - M10 × 1.5 × 20mm
(2) Flange Bolts - M10 × 1.5 × 30mm
(2) T-Nuts - M10 × 1.5

🛠️ Installation Overview

Unbolt the factory seat from the floor (keep all wiring connected).
Position the VAC Seat Extenders in the OEM mounting locations.
Secure the extenders with the factory hardware up front and supplied hardware in the rear.
Torque all 8 bolts to OEM specifications.
Confirm seat slides and locks securely with no play.

Install Time: 30-45 minutes with basic tools.

Price: $495 + shipping

👉 Drive comfortably. Drive safely. Drive VAC.

215.462.4666

sales@vacmotorsports.com

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