Lol. I'm getting old.
Yes the exhaust you have on there (no muffler or cat) along with a chip will yield some good gains. IIRC guys have gone mid 14s with good tires, an MP cal and some boost.
The stock down pipe on your car should be 2.25", but it necks down pretty severely before it goes over the rear axle I think back there it's about 1.75". On my NYer I have 3" exhaust from the turbo back. I just run a 3" DP and then a 90* bend to dump it out in front of the rear tire.
In order to run the 3" DP you'll need at least a 2.5" swing valve on the turbo. You can port those out to darn near 3", but a 3" SV from Turbos Unleashed would be easier and even bigger. Shadow on the boards here can make your existing 2.25" SV into a 3" mandrel bend piece for a fee if he still offers that service. IMO that or the ATP swing valve with the V band is the way to go. Certainly there is a diminishing returns factor at play here and if a cheap 2.5" piece pops up on the boards here used that's the way I would go. Even more so if you're staying TI log powered.