Astra/Zafira Z20 2 1/2" Solid Top Hat (VXR,GSI,Sri-T) Map sensor:With Map sensor boss Included with this:

Included with this:

it stands out

Professional fitting is required on this item

Fitting bolts included

fits with standard or tubular manifolds

Astra/Zafira Z20 2 1/2" Solid Top Hat (VXR,GSI,Sri-T) Map sensor:With Map sensor boss Included with this:Astra Zafira Solid top hat boost pipe, fabricated in 63mm (2 1 2") 304 Stainless Steel. Popular for taking out a common silicone joint and giving the engine bay abit more of a "unique" look over what is already available on the market in high volume, the TigWorx Solid Top Hat made with mandrel bent pipework welded in position, gives a smooth flow to utilise the full size of the Throttle body, over the standard sized Top Hat. Mapping is recommended