The new GT-R is a hard car to improve on. Nissan has really carefully thought through nearly every aspect of the car to maximize well… everything. However in carefully inspecting it one of the areas we felt we could make some improvements on was the exhaust system. At the end of the day, the GT-R still utilizes mass manufacturing techniques in the construction of most components. While this certainly isn’t a performance inhibitor in some areas, it can certainly have a negative effect on trying to maximize performance and efficiency of expelling spent exhaust gas.

One of the first components we addressed was the stock catalytic converter section. We weren’t interested in simply removing the cats and turning the highly technical GT-R into a gross polluter… we’re one of those crazy companies that thinks you should be able to make power while still maintaining a suitable emissions profile. So, here you have our first prototype of a high flow cats constructed entirely in 304 Stainless Steel using metal substrate cats with full TIG welding. This will certainly be in production soon and available to both the world market and of course North American GT-R owners (off road use only in the US!) in the next few months once we’ve had ample time to test and refine the setup on our own car. Dyno results to be posted soon.

Stock Cats:

COBB High Flow Cats