STI Hawkeye Tein Flex Z Coilover Install Guide
STI Hawkeye Tein Flex Z Coilovers
Legal in 0
Subaru WRX STI
GDB-F (N/A)
Power
See specifications
0-60
See specifications
Top Speed
See specifications
Current Market Value
Contact for pricing
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🇺🇸 US Import Information
This vehicle will become legal to import in 0 under the 25-year exemption rule. Check our import guide for details on the process.
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Expert DIY
5-6 hours
Tein Flex Z 16-way Adjustable Coilovers
Subaru WRX STI (GDB-F)Also compatible with: Other GD STI variants
Estimated Cost
$1,200-$1,450
Parts: $780-$950
Labor: $400-$500
Horsepower
0
Torque
0
Response
Much improved turn-in, eliminates body roll, adjustable for track or street
Prerequisites
- • Jack and stands
- • Spring compressor (front)
- • Alignment rack access after install
Installation Progress0%
Installation Steps
1
Measure stock ride height
10 min
Fender-to-hub baseline
2
Jack onto stands, remove front wheels
15 min
3
Disconnect front sway bar end link
10 min
4
Unbolt front brake line bracket
5 min
5
Unbolt lower strut from lower control arm
15 min
6
Unbolt 3 upper strut tower nuts
10 min
7
Extract front strut assembly
10 min
8
Compress stock spring to transfer top hat if needed
20 min
9
Install Tein front coilover
30 min
10
Repeat opposite front side
1 hour
11
Rear coilover install
2 hours
12
Set damping to 8 clicks baseline
10 min
13
Alignment at shop
1 hour
Parts Required
All parts needed for this modification
Tein Flex Z coilover kit GD STI
Quantity: 1 • $850
Energy Suspension polyurethane sway bar bushings
Optional
Quantity: 1 • $45
Adjustable camber arms (rear)
Optional
Quantity: 1 • $180
Tools Required
Spring compressor
Rental: $15/day
Rental
17mm, 19mm, 22mm sockets
Common
Pry bar
Common
Pickle fork
Rental: $10/day
Rental
Supporting Modifications
Additional mods recommended or required for optimal performance
Rear adjustable camber arms
required
Stock arms limit camber after lowering
Cusco rear diff support
recommended
Reduce wheel hop at track
Tuning Requirements
ECU Flash Required
Dyno Tune Required
Estimated Tuning Cost
$150
Alignment mandatory. 500 mile break-in before adjusting damping.
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