b'Autocross Roll BarAUTOX-PRO-RSX 1-3/4 DOM Roll Bar: oNASA & SCCA AUTOCROSS Legal DOM Roll Bar (Not for Road Courses) oModerate Roll Bar Design with Strong Main Hoop & Added Chassis Rigidity o1-3/4x .120 1018 DOM Tubing Mandrel Bent Main Hoop for Your Specific GM Model o1-3/4 x .120 1018 DOM Tubing EZ Access Curved Door BracingBoth Sides o1-3/4 x .120 1018 DOM Tubing Seat Back & Harness Cross Bar o1-3/4 x .120 1018 DOM Tubing Rear Down Bars Brace BarsRoll Bar & Front o8 Steel Mounting Plates to be Welded or Bolted to UnibodyFrame Structure $1800 AUTOX-PRO-RsX DOM ROll BAR & Road fROnT fRAMe sTRUcTUResiDe View Courses Front Frame Structure & Bay Bar Brace: o1-3/4 x .095 1018 DOM Tubing MandrelBent Engine Bay Bars (with Firewall Plates) o1-1/4 x .065 1018 DOM Tubing Engine Bay Bar Triangulation Braces oAdapter Spuds Weld Into Bay Bars & BoltBay Bar to the Extreme Clip Near the Shock MountssTAnDARD MAin HOOP View fROM insiDe cOckPiT Tech Tip 57: Why should you consider a Chromoly roll cage structure over DOM? Simple. Permanent weight savings, up high.All dimensions equal, 4130 Chromoly & 1018 DOMweigh the same.But Chromoly has a tensile strength of 97,200#, while 1018 DOM is 63,800#. Our Track-Warrior cage structure has 82 of tubing from the main hoop to the firewall of the driver cockpit.This cockpit in 1.75 x .125 wall 1018 DOM weighs 177#. This same cockpit in 1.75 x .095 wall 4130 Chromoly weighs 137#.Chromoly saves 40# permanently.And this 40# weight reduction is all above the frame rails, lowering the CG of the race car.When we compare the strength of 1.75 x .095 4130 Chromoly to 1.75 x .125 1018 DOMthe thinner wall Chromoly cage is still 15.7% STRONGER than the 1018 DOM cage. So, the 4130 cage offers us a permanent 40# weight savings, lower CG, stronger, safer cage & only adds about $1000 to your build.Forget Carbon Fiber body panels. Nothing else you buy will offer you the same weight savings & performance gain for the dollar.155'