We have released our True 3″ Inner Diameter Inlet pipe because this is quite a huge a restriction for the 2009-present GTR and still a small restriction for the 2012-13 GTR especially if you plan on upgrading the cartridge in your stock turbochargers. The 2 Bolt side has a larger inner for future turbo upgrades but still retains the stock 2 bolt dimensions. This still retains the crank case hook up.
Features:
3″ Inner Diameter Inlets
2 Bolt side has a larger inner for future turbo upgrades but still retains the stock 2 bolt dimensions
This may require a 3.25″ to x” silicone reducer pending your intake pipe size