ARP 180-1401 Header Bolt & Stud Kit for Oldsmobile 330-455. 1.670? OAL. 14 pieces ymm_21 this product was designed to

this product was designed to upgrade the Akrapovič system for further tuning

Using a material which has far more strength than required is not as cost effective – but will definitely give you an extra margin of safety and longer service life

but it still has the unmistakable Akrapovič feel

The lower part of the diffuser has two replaceable rubber protectors that prevent the carbon fibre from scratching the asphalt of the tracks

ARP 180-1401 Header Bolt & Stud Kit for Oldsmobile 330-455. 1.670? OAL. 14 pieces ymm_21 this product was designed toSpecifications Socket Size(s) 7 16 12pt OAL (Qty: 14) 1. 670 Thread Size 3 8 nuts, washers included