Our early racing experiences with the GTR upon its release inspired the us to create the first 4" exhaust on the market for the R35. The Boost Logic 4" Exhaust system features our Midpipe with resonators that flare the 3" Midpipe tubes to a true 4" pipe instead of an oval which reduces flow. The mandrel bent 4" Exhaust section is as straight as possible while maintaining a true bolt on fitment that doesn't sacrifice ground clearance while maximizing flow. The rear section of the 4in exhaust splits into dual 3" piping with high quality race mufflers. The Boost Logic 4" race exhaust has two choices in tips, Quad 5" Slash Cut Exhaust Tips with either brushed stainless steel, a burnt titanium finish, or our in house designed "F16 Inspired" Afterburner tips that come black chrome or brushed stainless steel.

Sound Quality is fantastic, a very open race sound for your GTR, The GTR's valve timing keeps the car extremely quiet at idle, but in any open throttle condition the volume is what should be expected from a full track car. This exhaust system offers the best of both worlds, supporting all BPU mods up to some of the most extreme power level GTR's in the community!

Largest Exhaust on the Market

Bolt on to Factory Downpipes

Low Angle Merges designed for highest flow

One piece mandrel bent pipe sections for least welds
? Available with stainless or burnt titanium slash cut tips