anyone know which y pipe i should go with? i don't have a y pipe... just the mid-pipe and muffler so that's why i ask! lol

 

i think the motordyne xyz pipe is one of the best... although its kinda pricey for just a y pipe.

but as the saying goes.. u get what u pay for...

 

people say Stillen and JIC make good y-pipes

 

+1 Go with with XYZ Y pipe

 

Proof is on the dyno..
https://my350z.com/forum/intake-exha...-bolt-ons.html

**Motordyne XYZ pipe**
– This run shows a solid increase in both Torque and HP. Torque is a soild 10ft/lbs across the powerband, starting at around 3800 rpm al the way to redline. HP shows an increase of 10whp starting at around 4200 rpm, with a big jump starting at 5250 rpm with great gains all the way to redline.
Overlay of the xyz pipe vs baseline

 

I'll vouch for the MD XYZ pipe. I have it paired to the Nismo exhaust and I absolutely love it.