ARP 134-1201 Header Bolt & Stud Kit for CHEVROLET LS Gen III/IV. 1/4? wide flange. 0.984? UHL. 8740. 12pt ymm_10 It protects the working parts

It protects the working parts of the water/methanol system and the engine from particulates in the water/methanol mixture when installed in-line before the water/methanol pump

The combination of an Akrapovič Slip-On Race Line (Titanium) and Evolution Header Set (Titanium)

Pro Series 2-Bolt Main Bolt Kit (203-5002) by ARP®

and no remapping is needed for this configuration (the system only fits vehicles equipped with the OPF filter

The full arrangement of the exhaust and link pipes is intended for racing track use only and is not intended for street use

ARP 134-1201 Header Bolt & Stud Kit for CHEVROLET LS Gen III/IV. 1/4? wide flange. 0.984? UHL. 8740. 12pt ymm_10 It protects the working partsSpecifications Socket Size(s) 10mm 12pt UHL (Qty: 12) 0. 984 Thread Size M8 washers included