ASTRA H 

1.6L 16V Z16XER

1.8L 16V Z18XER

4-1 RACE MANIFOLD

Year 2005 onwards MK5

 

HAND MADE IN ENGLAND

By

JOHN ASHLEY EXHAUSTS

 

SUITABLE FOR MOTORSPORT OR TRACK DAYS

Direct replacement for the original manifold

Bolts onto the original system for easy DIY fitment

This will fit the Z16XER and Z18XER engine & system perfectly in the MK5 ASTRA H models

If you are unsure or you would like to check please email me your cars reg

Approx. 15mins to fit, after the standard manifold has been removed

Performance manifolds, systems and sport boxes available in mild steel or 304 stainless

Aluminium coating available in matt white for an extra £50.00

Please note we produce three primariy sizes for the Z16XER / Z18XER, 1 1/2", 1 5/8" and 1 3/4". This is one has 1 1/2" primaries. We tailor make the exit diameter to suit the system you have, either 2", 2 1/4" or 2 1/2".  

 

Technical specification;

4 into 1 race manifold 

Mandrel bent 1 1/2" primaries 

2" collector ideal for a 2" system

Laser cut flanges

CNC lambda boss for probe

Made in the UK

We believe our Astra H race manifolds are a good value, UK made, easy fit product that gives a louder sound and more power. For the more serious enthusiast, we can build one off 4-2-1 or 4-1 manifolds to engine builders specifications or just for fast road from £350.

We powder coat all of our products in our 1200 range and have done so for 45 years. Even though we bake our exhausts at approximately 200 degrees in an oven that paint stays on most exhaust systems but can burn off the manifolds. The paint is purely for cosmetic purposes and does not affect the performance of the manifold in any way. Should you have any further questions relating to the above information please feel free to contact us..

Please feel free to ask any questions

Fitting service available

Collections welcome

Thanks