Why do This Mod?
The standard intake pipe is quite small and restrictive so minimises airflow entering the air box. This mod replaces the standard pipe with a larger one off a Vectra C diesel, which will increase airflow , and may liberate a few BHP in the process – especially when done with an aftermarket panel filter, and a de-restricting the air box (see other how to for derestricting the air box)
Part numbers you need
Main Pipe 9177099
Adaptor to Air box 9177104
Tools required
Junior Hacksaw.
Flat bladed screwdriver.
A couple of small self tapping
Screws
Drill and small drill bit
Torex screwdriver
Cable ties
Time taken
It took me about an hour.
Step 1
Before removing anything off of your car, remove both mounting brackets from the top of the new Vectra C inlet pipe the best thing to use I found was a junior hacksaw. Try and cut
As close as possible to the pipe, without Damaging it!!
Step 2
Next you need to remove the air box to do this remove the torex screws and the jubilee clip holding the top air in take pipe. with these out remove the lid of the box and pull the box forward to remove the 2 back pins and then forward to remove the bottom pin.(any problems with this see the derestricting the air box how to there are pics of it all in there).
Step 3
With the air box out you need to remove the 2 torex screws from the slam panel and unclip the 2 clips holding in your standard inlet pipe I used a large flat screw driver and put it between the underside of the slam panel and the top of the standard pipe, prise the mounting clips off the original inlet pipe. This can be a bit of a fiddle, but with a bit of force and time they will come off. Next you need to remove the standard in take pipe from the car this is hard on the 2.2 as there is not a lot of room I undid the light on the left and it made it a bit easier.
Step 4
When you have the standard pipe out offer up the Vectra C pipe into the correct position. Then slide it over towards your battery fit the adaptor pipe to the end of the Vectra c pipe. I fitted the 2 pipes together with a zip tie.
Step 5
Once you have done this you need to fit the lower half of your air box and fit the new pipe (adaptor pipe) onto the box, it is very tight but it will fit just take your time.
The standard intake pipe is quite small and restrictive so minimises airflow entering the air box. This mod replaces the standard pipe with a larger one off a Vectra C diesel, which will increase airflow , and may liberate a few BHP in the process – especially when done with an aftermarket panel filter, and a de-restricting the air box (see other how to for derestricting the air box)
Part numbers you need
Main Pipe 9177099
Adaptor to Air box 9177104
Tools required
Junior Hacksaw.
Flat bladed screwdriver.
A couple of small self tapping
Screws
Drill and small drill bit
Torex screwdriver
Cable ties
Time taken
It took me about an hour.
Step 1
Before removing anything off of your car, remove both mounting brackets from the top of the new Vectra C inlet pipe the best thing to use I found was a junior hacksaw. Try and cut
As close as possible to the pipe, without Damaging it!!
Step 2
Next you need to remove the air box to do this remove the torex screws and the jubilee clip holding the top air in take pipe. with these out remove the lid of the box and pull the box forward to remove the 2 back pins and then forward to remove the bottom pin.(any problems with this see the derestricting the air box how to there are pics of it all in there).
Step 3
With the air box out you need to remove the 2 torex screws from the slam panel and unclip the 2 clips holding in your standard inlet pipe I used a large flat screw driver and put it between the underside of the slam panel and the top of the standard pipe, prise the mounting clips off the original inlet pipe. This can be a bit of a fiddle, but with a bit of force and time they will come off. Next you need to remove the standard in take pipe from the car this is hard on the 2.2 as there is not a lot of room I undid the light on the left and it made it a bit easier.
Step 4
When you have the standard pipe out offer up the Vectra C pipe into the correct position. Then slide it over towards your battery fit the adaptor pipe to the end of the Vectra c pipe. I fitted the 2 pipes together with a zip tie.
Step 5
Once you have done this you need to fit the lower half of your air box and fit the new pipe (adaptor pipe) onto the box, it is very tight but it will fit just take your time.
