here are some pics

 

Looks like the ACV dump line... in which case you can remove it if you no longer have an air pump or ACV.

 

thats what i thought, i also have a pic of the pump which is under the pasenger headlight. i can take that off to right.

 

Uhhmmm, the thing under the passengers head light, that is connected to that line is NOT the pump.


That's an Air muffler.......

 

You can remove it even with the air pump and ACV still on the car... it just sounds super funny on decel

 

i want to know if i can take off the pump to. i already ahve the head light off

 

THAT'S NOT THE PUMP!!!!


That's the ait muffler!!!!

 

Like said before

The muffler under the passenger headlight connects to the ACV.

It is one of the ways air is diverted through the ACV(when not used).

If you get rid of the ACV you can defintely remove it.
If your keeping the CV then it will just be loud.

 

I removed the ACV silencer and still have the air pump and acv installed

 

I wanna ask a stupid question....

What is the air pump for in these cars???. Is it for the actuator valves??......im clueless.

 

To promote breakdown of exhaust in the catalytic convertors and also to actuate the auxilliary ports on N/A models (S5).

 

on s5's the airpump activates the actuators, on both it supplies, along with the acv, air to the cat for emissions

 

sorry for calling it a pump, its just what i called it because i had no i idea and it became a habit.

now time for a stupid Q: where the pipe ends up on the LIM can i remove that whole thing. here is a pic.

 

If you don't have emissions tests you can remove it, along with the air pump, split air pipe and cat convertor. Search for "ACV"; there are dozens of threads covering removal.

 

http://mazdatrix.com/e7.htm

Go to letter J. That is the Block off plate you will need for the ACV once it is removed. Also IF you remove your air pump, Make sure you wire open your SIX port sliders, and the VDI in the throtlle body( or remove them). They operate off the airpump on the S5 models. If it is a S4(86-88) Then they operate off of the CAT i believe and the airpump can be removed with no effects to the six ports and the VDI. Please correct me if I am wrong here guys.( about the S4 ports operating off the cat)

 

First, an NA engine with working 6PI and VDI systems is better than one with everything ripped off because you don't understand it. Second, this is a turbo engine.

 

I'd make sure the can of Dew is removed before takeoff as well

 

You haven't heard of the Mt. Dew method for actuating port 5&6? Sheesh.

OR

That's a taisty engine de-greaser

 

im pretty sure you can get rid of the mountain dew can.