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Bazzaz QS4 Quick Shifter
  • Bazzaz QS4 Quick Shifter
  • Bazzaz QS4 Quick Shifter

This product is bike-specific
Please click on "Select your bike" below to purchase the part that will fit.

First select your bike:

$479.95 - $802.99
Savings (15%):
$407.96 - $731.00
The price depends on which bike you select. Select your bike to continue.

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Bazzaz QS4 Quick Shifter

The Bazzaz QS4 Quick Shifter transforms any bike into a racing machine. It works by cutting the ignition for a millisecond at a time allowing for quick and seamless shifting under full or partial throttle.

Includes: Pressure sensor, shift rod, wiring harness, Z-Mapper software and Bazzaz QS4 unit

This Product Fits:


Orders $39.99 and over qualify for our fast free shipping offer. Click Here for FREE Shipping Terms and Conditions.

Please see our International Orders page for orders shipping outside the US.

We show real-time availability on this product page when you select the size/color item you want.  Most items will ship the same business day an order is placed,however if an item requires additional processing time a message will be shown indicating such.

See our full Shipping Policy for further details.


If your order arrives and it is not right, we will we'll fix it, NO NONSENSE, we promise.

Doesn't fit or just not happy with it? You can return any new, unused and unaltered item within 30 business days of delivery receipt of your item. We will issue a full refund to your original payment method.

See our full Return Policy for all of the pertinent details.

Write a Product Review for a chance to win our monthly $100 giveaways.
Bazzaz QS4 Quick Shifter 5 5 1 1
Easy install, software setup is not difficult to get used to. Bought the Bazzaz QS4 for my 2013 gsxr750 and man is it well worth the money! Install was simple especially since the directions show you where everything goes, it's all really plug and play with the device no need to buy any kind of fuel controller. Once I downloaded the software and started playing with the kill times I immediately took it to the streets. WOW! Night and day difference. Will definitely be taking it to the track soon to see how well my lap times can be decreased. Overall for the price an amazing product! August 5, 2015
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