If anybody is interested or ever has questions about Penske Racing Shocks let me know. I split my time currently between the drag race and NASCAR shocks at Penske. Our shocks are custom made for every car. Everything is hand built to customer specs. Everything is dynoed before it is shipped and every shock matches. We have a huge data base. Also currently all Pro Stock cars run Penske Shocks. I bracket race and I think we all know how much varying 60' times can be the difference in a first round loss or a final round appearance. I think the information in this post is good. I will never bash another shock companies product. If anybody has questions just PM me.