Bump~~~ for a highly innovated exhaust system
if anyone is interested in know what the design is about this exhaust...
the exhaust system is 2.75 inch diameter. it is 0.25inch less compared to the normal 3 inch exhaust system. because of this smaller pipe design, it is able to retain the back pressure as a result N.M(kg.m) torque is not lost during the initial exhausting phase. beside the 2.75inch pipe, it has 2 turbulence propellers 1 at the end of the muffler tip and one at the end of the mid pipe. the purpuse is to increase exhaust flow at those points so the exhaust air will leave the pipe faster. the air flow can very well move faster than a 3inch pipe.
all in all, the design of this exhaust system is increasing exhaust flow without giving up the N.M(kg.m) torque
here are couple pictures for the actual exhaust system from zerosports.
this research is done with comparing with HKS carbon-TI exhaust system. sound clip avaliable