Tomei Powered ARMS M8280 - Manual (Page 29)

The stock outlet pipes will hinder the gas flow efficiency. At higher engine speeds (RPM), these
narrower outlet pipes will choke the Turbine exhaust gas flow, causing the boost to be unstable.
With the larger outlet pipe, exhaust gas flow will be more efficient, boost will stabilize and the
efficiency of the Turbo will increase.
By using a similar sized pipe with the outlet pipe diameter, exhaust gas flow will be smoother,
better mid range pick-up and more power in higher RPM range.
By upgrading to a sports metal catalytic converter, you can get the high flow performance needed
whilst still meeting the most of the current smog emissions standards.
By using a similar sized pipe (φ80～90mm), the exhaust gas flow will be smoother, this will greatly
aid to maximize exhaust flow and to prevent any performance restrictions.
An aftermarket ECU is required to optimize the setup of your engine with the new setup.
With the increase of horse power, the increase in combustion temperatures and this will be a risk
of the plugs from melting. The recommended plug heat range of 8-9 is suitable.
CATALYTIC CONVERTER
STOCK CONDITION
Recommended: Metal Catalytic Converter
TUNED ENGINE
ITEMS RECOMMENDED SETUP
TURBINE OUTLET
STOCK CONDITION STANDARD
TUNED ENGINE Large Capacity High Flow Φ76.3mm Diameter.
FRONT PIPE
STOCK CONDITION
Recommended: Pipe Diameter φ76.3 or Similar
TUNED ENGINE
SPARK PLUGS
STOCK CONDITION
Upgrade Required, Recommended: 8～9 Heat Range
TUNED ENGINE
MUFFLER
STOCK CONDITION
Recommended: Pipe Size φ80～90 or Similar
TUNED ENGINE
COMPUTER
STOCK CONDITION Custom Tune Required
Recommended: HALTECH PLATINUM SPORT 2000 TUNED ENGINE
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