- It's more big in pipe diameter which let the exhaust gas smoothly to the muffler and have better engine performance.
- We used SUS304 that has durability and great appearance.
Remarks
GRF: Close noise level Stock:L84 R83 LEGAMAX Premium installed:L89 R88
GRB: Close noise level 84dB (LEGAMAX Premium installed),
[specC] is ok Close noise level 89dB (LEGAMAX Premium installed)
GH8: Close noise level 85dB (LEGAMAX Premium installed)
* 2:about main materials for configuration diagram 
: SUS304/high quality stainless steel 
: SUH409/stainless steel material that are used a lot for stock