S15 Silvia HKS Hipermax Coilover Install Guide
S15 HKS Hipermax Coilovers
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Nissan Silvia S15
S15 (N/A)
Power
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0-60
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Top Speed
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Current Market Value
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Expert DIY
5-6 hours
HKS Hipermax IV SP Coilovers
Nissan Silvia S15 (S15)Also compatible with: S15 Spec-S
Estimated Cost
$2,000-$2,500
Parts: $1,600-$1,900
Labor: $400-$600
Horsepower
0
Torque
0
Response
Japan-tuned damping for S15 chassis, massive turn-in improvement, adjustable for street or track
Prerequisites
- • Alignment after install
- • Spring compressor
- • Corner balance (optional)
Installation Progress0%
Installation Steps
1
Measure stock ride height
10 min
Baseline all four corners
2
Jack front end onto stands
15 min
3
Remove front wheels
10 min
4
Disconnect front sway bar end links
15 min
5
Unbolt brake line bracket
5 min
6
Remove lower strut bolt
15 min
7
Remove 3 upper strut nuts
10 min
8
Extract front strut
15 min
9
Install HKS front coilover
30 min
10
Repeat opposite front side
1 hour
11
Rear coilover install
2 hours
12
Set damping baseline 15 clicks
10 min
13
Alignment at shop
1 hour
Parts Required
All parts needed for this modification
HKS Hipermax IV SP S15
Quantity: 1 • $1,750
Rear adjustable camber arms
Optional
Quantity: 1 • $180
Energy Suspension front LCA bushings
Quantity: 1 • $65
Tools Required
Spring compressor
Rental: $15/day
Rental
17/19/22mm sockets
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
Front adjustable caster arms
optional
Improve caster for better steering feel
Tuning Requirements
ECU Flash Required
Dyno Tune Required
Estimated Tuning Cost
$150
Alignment mandatory. 500 mile break-in before aggressive damping.
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