Not off the shelf, and 3" is over the top for NO good reason. So unless you want fashion victim exhaust prices go for 2 1/2" which is as big as you need for performance needs.
Also getting 3" pipe out the back of the turbo will be a challenge, not impossible of course but you may need to wallop the bulkhead to fit 3" turbo elbow.
Powerflow will sting you about £250 for downpipe back system in stainless. The turbo end needs a one off special bit made off the turbo flange which is where the real gains come from, so you'll need to budget another wedge for that too :augie
Have you done other mods on the performance side of the engine :naughty