My Account
My Garage
Shopping Cart

Shopping Cart

0 items in your Cart
View Cart
Subtotal
Track
My Order
MY GARAGE Select Vehicle
MY GARAGE

Skunk2 521-99-1140 Race Spring Straight 7in x 2.5in ID 16kg/mm

Manufacturer

Picture for manufacturer Skunk2

Part Number

521-99-1140
5 reviews
Sale Price

$95.66

Estimated ship date Saturday, November 21

Check out with

ApplePay
Authorize Seller Badge
No Hassle Returns

No Hassle Returns

Live-in-stock inventory

Live-in-stock inventory

Fitment guaranteed

Fitment guaranteed

Product Details

The Skunk2 521-99-1140 Race Spring is a straight coilover replacement spring designed to fine-tune handling performance and driver feel on Skunk2 Pro-ST, Pro-C, and Pro-S II coilover systems. Sold individually, this spring gives experienced tuners the flexibility to dial in custom spring rates and ride heights for a tailored balance between daily street driving and track performance.

Specifications:

  • Spring Type: Straight
  • Length: 7.00 in.
  • Inner Diameter (ID): 2.50 in.
  • Spring Rate: 16 kg/mm (894 lb/in)
  • Part Code: 0700.250.016S
  • Color: Red
  • Quantity: 1 spring per package

Construction & Materials:

  • CNC-wound from premium SAE 9254V spring steel for precision and consistency
  • Shot-peen stress relieved for enhanced fatigue resistance and longevity
  • Corrosion-protected with a specialized phosphate treatment and durable powder coat finish

How to Read Skunk2 Spring Part Codes:

Skunk2 spring part codes follow a standardized format: [Length] . [Inner Diameter] . [Spring Rate][Type]

  • Example: 0700.250.016S
  • 0700 = Spring length of 7.00 inches
  • 250 = Inner diameter of 2.50 inches
  • 016 = Spring rate of 16 kg/mm (approximately 895 lb/in)
  • S = Straight profile

Spring Rate Conversion: 1 kg/mm = 55.88 lb/in

These race springs are the same units supplied as standard equipment in Skunk2 adjustable coilover kits, ensuring a perfect fit and proven performance. Compatible with Skunk2 Pro-C and Pro-S II coilover assemblies as a direct front or rear replacement.

Products specifications

ID

2.5"

Length

7"

Rate

16kg/mm

Style

Straight

Ordered a sling to store my roof rack. There was an issue with the supplier which was quickly resolved by the Autoplicity staff. Great customer service -- most responsive I've ever seen.<br><br>Best prices around.

Super easy to browse web site and find the product I wanted.<br>The price was unmatched.<br>Shipping was fast and cheap.<br>Super shopping experience.

So far so good but I will reserve comment until I receive order and then will be able to give a complete review based on ease of ordering ,price, prompt delivery and condition of order upon delivery. OK so I have received my order and everything is in ord

Great prices, helpful customer service. Ordered 2 by mistake. And they got it cleared up real fast. Saved over $80 off retail. Will be ordering from the, again!!!!! <br>

Excellent service with the actual stock on hand, shipment was made the next day and a tracking number was provided. I have tried 2 other online supply stores which don't know what they have in stock.

Share icon
Return Policy
Returns are easy at THMotorsports

Not happy with a purchase? No problem. We've made returning items as easy as possible. And most purchases can be returned for free for 30 days. Learn more about our Returns Policy