I have an Apexi ECV for sale.
Its the 80 mm universal (flange type) version. Its brand new and comes in box with bolts, gaskets, etc.
Will bolt up to any 3inch exhuast system, or cat that uses a 3inch flange. Can adjust exhuast noise level by up to 10 Db, as stated by Apexi.
SOLD pending payment
cheers