See Video here - REMARK Axleback, Midpipe, Y-Pipe for Nissan Z

A simple way to get the sound and look of a performance exhaust system without replacing the entire system. REMARK'S axleback kit replaces the rear section of the OEM exhaust system, aka the muffler and tips. Bolts directly to the OEM midpipe. No cutting, no drilling, no welding, just a simple bolt-on replacement for the large and heavy OEM muffler. Offered in polished or burnt finish double wall tips. 

Combine with the midpipe kit, or midpipe + Y-pipe to complete a full catback exhaust system. Each section will further improve exhaust gas flow and reduce restriction. For most turbo motors, reducing the exhaust gas restriction will result in performance gains especially in boost, and/ or higher RPM range.

One of the benefits about REMARK'S products is that you can replace the entire exhaust system at once or do it in stages.