got my clutch fixed and the guy said he could build me a exhaust for 150 if i bought the pipes so i did he made a cat delete an thats it but the pipe that connects to the cat pipes ( on the 86) he never hooked into the pipe so its just hanging up by some wire what is that and do i need it any help would be great

 

if your running your n/a like that I very seriously doubt your car will operate properly because after market exhausts (with the exception of racing beat) don't provide the right velocity to allow your 5th and 6th ports to operate.

 

I dont know about that TYBLAT. I mean i had a custom exhaust on a ole' gtu i had 3 or 4 yrs ago that worked grteat. But maybe your right because on S5's the air pump operates the actuators.

I would just wire them open entirely and forget about em'.

 

so what should i do do i need to tie that line into the cat delete or just leave it alone

it is 2.5 inch pipe from the headers back

 

As others have alluded to, I believe you're talking about the tube that supplies your aux ports with pressure. It also leads to the ACV, if you still have it ("split air", see emissions overview). You could try tying it into the cat (delete?) and see if it provides enough pressure for your ports. If not, I'd suggest looking into the air pump option. Wiring the ports open is an easy fix, but in my own experience, the loss of low end power is not acceptable!

 

Wiring your 5th and 6th ports open hurts low end power and mpg quite a bit.
The s5's use the air pump? Now I won't feel so bad if I opt to open mine via the air pump. Welp, that'll save me the cost of a $100 electronic actuator.