Maximum Strength & Efficiency With Lost Wax!! The stock turbine outlet pipes internal diameters are small and restrictive which raises the secondary exhaust pressure. When the secondary exhaust pressure rises it will cause power loss and lack of response with unstable boost pressure. The TOMEI outlet pipes have been specifically designed with the larger internal diameter to improve exhaust gas flow efficiency with the reduction in the secondary exhaust gas pressure. This design has been proven effective on the engine bench dyno R&D as well as in the real world environment as proven on the race tracks with our ARMS turbines.
The light weight SUS304 material is used for strength & anti rust properties.
The lost wax process helps ensure that exhaust leaks are prevented.
Manufactured via lost wax process to eliminate the use of welds.
With the clean look of no welds these part alls then all will look good.
BOLTS / FITTING GEAR
Lost Wax method gives a smooth inner finish.
O2 Sensor Boss
The Lost Wax design is free from welds.
Large Diameter φ68mm (Stock : BNR32/BCNR33 φ58mm, BNR34 φ55mm)