Speed Metal Army Posted June 8, 2020 Report Share Posted June 8, 2020 What insert would be stock in an '18 rr? I was perusing the web and came across the s3 inserts in high and low compression. They offer "standard" as well... Quote Link to comment Share on other sites More sharing options...
huski Posted June 8, 2020 Report Share Posted June 8, 2020 Think the inserts are colour coded.You can see the insert where the spark plug screws in.Your importer would know what is standard 1 Quote Link to comment Share on other sites More sharing options...
sting32 Posted June 12, 2020 Report Share Posted June 12, 2020 Well as long as you are NOT talking about the 18 Gold models (because they shipped with completely different heads on them with Higher compression than the other models), then I can tell you that red anodized insert is HIGHER compression silver is MEDIUM (STOCK) and GOLD is LOWER compression. You can get them from TRS dealer, they are not that expensive. Quote Link to comment Share on other sites More sharing options...
Recommended Posts
Join the conversation
You can post now and register later. If you have an account, sign in now to post with your account.