RJC Racing “Biggie” Oil Filter Adapter

Notes from RJC "This will allow you to use a large capacity oil filter in place of the stock oil filter in the stock location . This increases idle oil pressure, has over 3 times the amount of filter media area and will help keep oil from continually bypassing the filter through the factory bypass.

Filters you can use:

• FRAM PH11
• FRAM PH25
• AC PF24
• NAPA 1258
• PUROLATOR  L30005
• WIX 51258
• STP S25
• DEUTSCH D431 Mobil 1 M1-203"

Specifications:
• Product: RJC Racing Biggie Oil Filter Adapter
• Fitment: 1986–1987 Turbo Buick 3.8L (Grand National, GNX, Turbo-T, T-Type)
• Condition: New, sealed in original package
• Includes: Adapter fitting and instructions included on packaging

Benefits:
• Allows use of larger, high-flow oil filters
• Improves oil filtration surface area and capacity
• Helps stabilize oil pressure under high RPM and boost
• Simple replacement — installs in minutes

⚠️ All Turbo 6 Parts are sold as-is with no returns, refunds, or exchanges. Buyer is responsible for verifying fitment before purchase.