Raceseng Engraveless Slammer Brushed Shift Knob

2015+ WRX / STI / 2013+ FR-S / BRZ / 86


SKU: 08211BR-0801X-081102We price match!

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13 hrs 27 mins

A union of mass and ergonomics. The Slammer is exactly what the name entails, the shape and 635 grams of mass makes for one of the most enjoyable shifting experiences. The final touch is a hand brushed finish to create a radial grain that accentuates your interior. The Slammer comes with an adapter that will seamlessly mount it on your car's shifter arm with OEM fit and finish.
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Slammer \ Brushed

Part of our Mass Series collection, the Slammer is weighted for performance shifting. The utilization of stainless steel creates a shift knob with mass to smooth out notchy shifting.

The black reverse lockout is NOT included


COLLECTION | Mass Series

PROFILE | Low Profile Sphere

FINISH | Hand Brushed Finish

OPTIONS | CNC Machined Shift Gate Engraving

MATERIAL | 303 Stainless Steel + 6061 Billet Aluminum Adapter


WEIGHT | 1.4 lbs. - 635 grams

HEIGHT | 2 5/16" - 59 mm

DIAMETER | 2 1/16" - 52 mm

COUNTERBORED | For Reverse Lockouts and Shift Boot Retainer

Shift Gate Engraving

With or without? All depends on your personal preference. Our signature shift gate engraving was designed to be graphically clean while giving your shift knob a unique aesthetic.

The engraving is cnc machined into the shift knob using a small .0625" solid carbide ball end mill.

How Does It Work

With the weight in all the right places, Slammer redefines your shifting experience through the look and feel of how you shift into gear. You will experience smoother and faster shifts!

How? Weight in motion directly relates to how an object will react to an opposing force. In this case, the opposing force is the gate pattern and counter springs that are connected to your shift arm that tell you the shift pattern of your car. The difference felt when shifting into the next gear requires far less effort due to the additional momentum created by the increased mass.

How Does It Fit My Car

We take fitment seriously. The Slammer comes with a precision cnc machined adapter that will fit your car's threaded shifter arm with OEM fit and finish. The adapter requires simple steps to install and allows you to adjust the shift gate engraving orientation with ease.

Will It Fit My Hand

We specifically designed the Slammer to fit medium to x-large size hands. If you are unsure of your hand size, please click the link below to reference our hand sizing chart.

Side Arm

Angled Overhand

Full Overhand


Shifting Positions

The Slammer was designed for multiple shifting positions including side arm, full overhand, angled overhand and overhand shifting positions. To make a shift knob work for all of these positions, the shape of the Slammer is not the traditional ball shaped shift knob. The proper ergonomics behind these shifting positions required a unique shape, one with a diminishing side profile, full form shape at the bottom and a flatter top shape to fill your palm.


We believe in the power of the design process to create incredible products. Every shift knob start it's life as an idea that is translated into countless ideation sketches where form and details evolve. We take those sketches and further develop them in solid modeling software to define the form and ergonomics of the shift knob. The goal of this process is to perfect the balance between form and function to create an unparallelled product and brand experience.


For the integrity and craftsmanship of our products, we do our manufacturing in house. We are proud to get our hands dirty crafting the very products we create.

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