« Back to Products

Fast Toys 98mm Air Lid (Black), 1998-2002 LS1 F-body

What people commonly refer to as an "85 mm MAF" is actually larger than 85mm. The OD is actually 96 mm and the ID is 90 mm. Starting is 2001, GM added the 85 mm MAF to it's highest performing engines (Corvette LS6, Corvete LS1 etc). After 2002, all GM V8 cars and trucks use the 85 mm MAF for better performance.

Unfortunately, 98-02 LS1 Camaro's and Firebirds were stuck using the smaller MAF which has an OD of 88 mm and an ID of 74 mm. This is not ideal for the best performance. On our flow bench, the Fast Toys Air Lid flowed 14.5 % more than the most popular aftermarket air lid!