87 t-66

iTrader: (133)

Sorry for the probably stupid questions...I am new to the NA game and want to make sure I have everything straight.

I have a stock S5 NA and am looking to get a full aftermarket exhaust. I am using the air pump for my 5/6th ports and currently have the stock split air pipe hooked up. If I get an exhaust without the split air hook up, can I just plug the hole on the air pump on the other end? Or is there a better way to do this? I need to keep the air pump for the 5/6th port activation (right?)

Thanks

lim_fc3c

iTrader: (4)

Split air pipe on the S5 is useless. I didn't plug the air going to the split air pipe i just let it vent out in the open.
The air pump is a must for any port activation on S5's.

clokker

iTrader: (2)

Yes, you need the airpump to activate the ports, the exhaust has nothing to do with them.
Your S5 is injecting air to the cat, if your new exhaust won't have a cat (or does have one but it doesn't require air injection), you need do nothing to the stock air system, just unplug the hose down to the cat.

87 t-66

iTrader: (133)

thanks!

j9fd3s

iTrader: (3)

+1 the split air pipe on an S5 is nearly useless. i hooked up LED's on the emissions solenoids, and it hardly ever uses split air