1st Gen with Ridetech Airbar: Get Link Bars with Poly or upgraded Heim joints?

[rocketrod]

For those that have installed a 1st Gen Camaro - CoilOver System - Level 2 setup would you recommend getting poly or upgrade to heim joints for the links bars? The car will be mostly street driven, but I would eventually like to autocross it some. I have heard the heim joints can be noisy and only necessary for a car that will be autocrossed a lot. Just looking for some input from those who are using the product.