Ace Race Parts 25064 2.500 OD Double Slip Joint Adapter - Polished OD - 304 StainlessAce Race Parts 25064 2. 500" OD Double Slip Joint Adapter Polished OD 304 Stainless The Ace Race Parts line of low profile Double Slip Joint Adapters feature a 3 piece leak free design and allow for expansion and contraction in high temperature exhaust applications. Ace Race Parts Slip Joint Adapters offer a consistent, high quality welding experience with virtually no need for surface preparation prior to welding and are an excellent choice for