Street. Track. Everything between.
Your garage Find parts for your vehicle Select year, make and model to narrow your search.

Skunk2 Universal Race Spring (Elliptical) - 6 in.L - 2.5 in.ID - 18kg/mm (0600.250.018E)

SKU: SKK521-99-1170

Coilover Springs

SK Race Springs...

Skunk2 Universal Race Spring (Elliptical) - 6 in.L - 2.5 in.ID - 18kg/mm (0600.250.018E)

SKU: SKK521-99-1170

Coilover Springs

SK Race Springs...

A$166.77
Special Order. Contact for ETA. This item is out of stock in our warehouse and partner distribution centres. In some cases, this may be due to not having live inventory feeds available for all suppliers. Please contact us before ordering if you need to meet a specific deadline.
View cart
We accept
American Express
Mastercard
Visa
PayPal Checkout
Direct Deposit
Afterpay
Apple Pay
Google Pay
Zip Pay

Description

Customize your Pro-C or Pro-S II Coilovers for the perfect balance between daily driving and track performance. 06-11 Civic 18kg/mm Race Springs are direct replacements for Pro-S II and Pro-C rear coilovers. Skunk2 Race Springs for Pro-C or Pro-S II Coilovers allow you to fine tune handling performance and driver feel through customized spring rates and ride heights. All Skunk2 Race Springs are CNC-wound using the highest quality SAE 9254V spring steel, shot-peen stress relieved, and corrosion-protected thanks to powdercoating and specialized phosphate treating processes.

Product Overview

Skunk2 race springs are available separately giving the experienced tuner more freedom in designing custom suspension set-ups. These are the same springs that come standard in each Skunk2 Racing adjustable coilover kit. Available as straight, elliptical, or cone tapered in numerous lengths and rates - you can be sure that perfect suspension setup is just a step away. How to read part # on spring: Example 0500.250.008 * 0500: (length of spring = 5") * 250: (inner diamater of spring = 2.50") * 008: (spring rate = 8kg/mm) Spring Rate Conversion: 1 kg/mm = 55.88 lb/in


Features and Benefits

  • 6 in. L x 2.5 in. ID
  • 18K [1008 lbs./in.] Spring Rate
  • Elliptical
  • Replacement For Pro-C/Pro-S II Coilovers

Product Details

Description:Race Coil Spring
ID:2.5in
Length:6in
Part Number:skk521-99-1170
Rate:18kg/mm
Style:Eliptical
WARNING CA Proposition 65 Message:WARNING: This product can expose you to chemicals including lead; which is known to the State of California to cause cancer. For more information; go to www.P65Warnings.ca.gov.
WARNING CA Proposition 65:Yes

Part Type

Coilover Springs

Data: v4.2 - Upd: 2026-10-13 20:55:52

Features

  • 18K [1008 lbs./in.] Spring Rate
  • 6 in. L x 2.5 in. ID
  • Elliptical
  • Replacement For Pro-C/Pro-S II Coilovers

Specifications

Product Attributes - Brand
Skunk 2
Product Attributes - Manufacturer's Part Number
521-99-1170
Product Attributes - Part Type
Coilover Springs
Product Attributes - Product Line
Skunk2 Racing Coilover Springs
Product Attributes - UPC
873265000616
Product Attributes - Progressive Rate Spring
No
Product Attributes - Coilover Spring Rate (lbs/in)
1,008 lbs./in.
Product Attributes - Spring Finish
Red
Product Attributes - Position
Rear
Product Attributes - Quantity
Sold individually.
Product Attributes - Notes
Replacement rear coilover spring for Skunk2 Pro-C and Pro-S II coilovers.

Reference Information

Brand Name/s Skunk2 Racing
StreetFX SKU skk521-99-1170
SFX Item ID 4442249
Supplier Item Code 4442249
Manufacturer SKU 521-99-1170
Manufacturer UPC 873265000616
Alternative References skunk2, SK2-521-99-1170, 18kg/mm, (0600.250.018E)

Compatibility

Loading compatibility information...

Keep shopping

More from Skunk2 Racing