Warspeed LS Exhaust Stud Kit Includes 12- 8mm x 1 x 40mm stainless steel studs and matching cadium serrated nuts. Installing studs in your cylinder head, protects the threads from becoming damaged if removing exhaust often. Clearance will need to be checked depending on the exhaust manifold fitted to your engine. Works with most factory exhaust manifolds, after market extractors and turbo manifolds
