Vehicle Compatibility
Honda Civic Si
- 2017 Honda Civic Si Coupe
- 2017 Honda Civic Si Sedan
- 2018 Honda Civic Si Coupe
- 2018 Honda Civic Si Sedan
- 2019 Honda Civic Si Coupe
- 2019 Honda Civic Si Sedan
- 2020 Honda Civic Si Coupe
- 2020 Honda Civic Si Sedan
- 2021 Honda Civic Si Sedan
Honda Civic Type R (FK8)
- 2017 Honda Civic Type R
- 2018 Honda Civic Type R
- 2019 Honda Civic Type R
- 2020 Honda Civic Type R
- 2021 Honda Civic Type R
Transmission Compatibility
✅ 6-Speed Manual Transmission
❌ CVT Models
❌ Automatic Transmission Models
Always verify transmission compatibility before ordering.
Why Upgrade the Factory Civic Shifter?
Honda’s factory shifter is already excellent, but enthusiasts often want:
- Shorter throws
- Faster shifts
- Increased precision
- Improved feedback
- Better track performance
A properly engineered short shifter addresses all of these goals.
Adjustable Shift Geometry
One of the biggest advantages of the Bull Boost design is adjustability.
Drivers can fine-tune:
- Shift throw
- Lever feel
- Shift effort
- Overall responsiveness
This allows the shifter to be tailored for both daily driving and aggressive motorsports use.
Faster Gear Changes
Reducing shift travel helps:
- Minimize hand movement
- Speed up gear engagement
- Improve acceleration between gears
- Increase confidence under hard driving
The difference is immediately noticeable during spirited driving.
Improved Shift Precision
Drivers commonly report:
- Better gate definition
- Reduced slop
- More positive engagement
- Improved transmission feel
Every gear change feels more deliberate and mechanical.
Billet Performance Construction
The Bull Boost assembly utilizes performance-oriented materials throughout.
Benefits include:
- Increased rigidity
- Reduced flex
- Improved durability
- Long-term reliability
Compared to factory components, the billet design provides a more direct connection to the transmission.
Perfect for the Civic Si
The turbocharged Civic Si responds exceptionally well to drivetrain upgrades.
Popular supporting modifications include:
- ECU tuning
- Intercoolers
- Downpipes
- Clutch upgrades
- Rear motor mounts
A short shifter complements these performance upgrades perfectly.
Excellent for the FK8 Type R
The Civic Type R was engineered for track performance.
The Bull Boost shifter helps maximize:
- Shift consistency
- Driver confidence
- Lap-time efficiency
- Gear selection accuracy
For many FK8 owners, a short shifter is among the first modifications performed.
Great for Track Days and Autocross
Road Courses
Provides quicker shifts between corners.
Autocross
Reduces wasted movement.
Canyon Driving
Improves responsiveness and engagement.
Daily Driving
Adds a more enjoyable and connected feel.
Enhanced Driver Ergonomics
The shifter’s design allows drivers to maintain better hand positioning and control.
Benefits include:
- Reduced fatigue
- Faster shifting
- Improved comfort
- Better overall driving experience
Installation Considerations
Before installation:
- Verify 6MT compatibility
- Inspect factory bushings
- Check shift linkage condition
- Follow manufacturer installation instructions
Many enthusiasts combine installation with upgraded shifter bushings for maximum improvement.
Pros and Cons
Pros
- Adjustable shift geometry
- Improved shift precision
- Faster gear changes
- Billet construction
- Excellent for track use
- Direct-fit design
Cons
- Manual transmission only
- Installation required
- Increased mechanical feedback
- May require adjustment for personal preference
Frequently Asked Questions
Does this fit a 2020 Civic Si?
Yes. All 2017-2021 Civic Si 6-speed manual models are supported.
Will it fit an FK8 Type R?
Yes. The 2017-2021 FK8 Civic Type R is one of the primary applications.
Is the throw adjustable?
Yes. Adjustability is one of the key features of this shifter assembly.
Does it fit CVT models?
No. It is designed exclusively for manual transmission vehicles.
Final Thoughts
The Bull Boost Performance Adjustable Short Shifter Assembly is an excellent upgrade for Honda enthusiasts looking to sharpen the already impressive manual transmission found in the Civic Si and FK8 Type R. With adjustable throw characteristics, billet construction, and improved gear engagement, it delivers the race-inspired shifting experience many drivers are looking for.
Because Honda gave you one of the best front-wheel-drive chassis ever built. This shifter simply makes sure every gear change feels worthy of it.





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