VW inserts are the last thing I would use

For a smooth ride on stock size tires, better to use the Nissan inserts such as
* Genuine Nissan 1200 sold at http://www.datsun1200.asia/category/select/pid/9132
* Nissan Pulsar sold in Australia/New Zealand
* 1200 or Pulsar units made by Monroe Australia (stiffer than stock)

KYB is the original Nissan equipment. Genuine Nissan inserts are stamped "Kayaba" (KYB)