Hi guys
Do any of you got a pic ( inside) of the main cat? Here I found 1 , the main cat look its has some “walls” inside and its look very very restrictive
http://i.imgur.com/a4UIJtl.jpg
vs Precat
http://i.imgur.com/LlSMFPt.jpg
I got 2 cats from a cayenne turbo S (2013) from a friend they fit without probs under de S4 I will put this instead of the oem.
Found the answered , mod if you want delate this thread.
Regards.
post what you found!
ups sorry!!
If you take a look at the first pic its clear that the hole on the left its the “entrance” of the air , the pics fools me for the light and the angle … basically its the same as the pre-cat and empty can ,but not as smooth…
Regards
??? are you taking off the OEM cats and welding those on, in its place or…
sorry, just wanted to clarify.
do you want a set of fully gutted piggies? i still have my set.
http://farm6.staticflickr.com/5543/9604696908_3b21dcc115_z.jpg
http://farm6.staticflickr.com/5516/9601462151_35ac259371_z.jpg
sorry, no pics of main cats.
actually…i sorta do have one of the main cats but it has poor lighting:
http://farm6.staticflickr.com/5456/9604729782_f4978e6246_z.jpg
I guess the awkward shape of main cats with added hollowness, are the reason why piggies offer that metallic rasp you will hear when you throttle hard.
Thanks for the pics
Actually I got 2 oem cats from the Porsche turbo for free , They look very very good ( taking pics tomorrow) , The idea is to keep cats ( emissions over here its a bitch), So I will place the cayenne cats over the stock S4 and make the catback etc.
Regards.
Dis Helen Keller weld those back up for you? Or Ray Charles?
;D
my money’s on stevie wonder
;D ;D ;D
i bought them that way; i have no clue how to weld so i would never try.
Those welds would look ugly if it was done by a pro too. There are lots of contaminants and crap soaked in after a few ten thousand miles.