GReddy Surge Tank / Intake PlenumFor Nissan Skyline ECR33 with RB25DET engineMaximises air supply to the engineIdeal for use with aftermarket turbo and intercooler3.6 L collector tank capacity90 mm throttle body required (not included)Made in JapanGReddy part no. : 13522316 GReddy Surge Tank for Nissan ECR33 SpecificationsManufactured to make the most of the RB25DET engine in the Nissan Skyline ECR33 this high-volume high-flow GReddy cast aluminium plenum is ideal for use with aftermarket turbochargers and intercoolers. Its cross-flow layout allows airflow to enter each cylinder undisturbed and evenly for improved engine performance. It retains the use of the genuine side-feed main injectors. It is only compatible with a large-diameter 90 mm throttle body (from Infiniti Q45) and requires certain genuine Nissan parts.Key FeaturesTo fit RB25DET engine (ECR33 only)Tank capacity : approximately 3.6 L (1.7 times the OE ratio)Parts required (not supplied): Q45 throttle body wiring extension S14 throttle cable throttle chamber gasket throttle cable bracket only for models from January 1995.Please note : as the mounting position is different from stock some piping modifications may be required.