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AIRTEC Motorsport Astra H enlarged top hat.
Designed to work with standard and AIRTEC intercooler kits (Will fit most aftermarket intercooler kits).
This bolt on DIY 10 minute job is the perfect upgrade to the Z20LET & Z20LEH 2.0 turbo engines.
Features:

Improved throttle response
Increased power
Keeps charge temps down
2.5″ aluminium hard pipes for standard throttle body

Includes: 90 degree hard pipe, top hat, silicone hose joiners, fitting kit.
Will fit both Astra MK4 & MK5 2.0T model - Designed to work with standard and AIRTEC intercooler kit (Will fit most aftermarket intercooler kits)

AIRTEC part no: ATMSVAUX1

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Improved throttle response
Increased power
Keeps charge temps down
2.5″ aluminium hard pipes for standard throttle body

AIRTEC part no: ATMSVAUX1