The pink spring is P/N 502137 and the purple spring is P/N 502138. These are 11 and 16.4 lb respecively. Whenever I show up at a new track or am having trouble with a required spec tire I always use these as a "good foundation" It makes the car very stable and predictable. FYI: the stock silver springs are 10 lbs.

We have some new items on our web site. It is a set of burgundy (same as the limited edition cars) anodized bulkheads. P/N WH18110 is all the bulkheads. WH18111 is all the bulkheads plus the toe in blocks at both ends of the chassis. This is a great way to "tune up" a car if you have any bent bulkheads or if you have an E4JS or E4JR it is a great upgrade over the plastic bulkheads. Of course the real reason for this is that it makes the car look awesome!! The kits cost less than the price of 2 plain bulkheads. These are in stock and ready to ship but are limited supply.