Air flow problem

[KevinFastMkV]

Anyone w/ Quad exhaust has this problem? this cat back has been on for 2 weeks now, but look at this:help:

 

[Tiny Gti]

Anyone w/ Quad exhaust has this problem? this cat back has been on for 2 weeks now, but look at this:help:

Ive never had that problem dude! :iono:

That just doesnt look right! Seems like the inner tips are just dummy tips not connected as there is no soot at all !?! who did that for you?

 

[KevinFastMkV]

actually its not dummy tips. all tips work but the air flow is just not quite even. this really sucks
I need HELP

 

[initialGTI]

what brand is that?? thats quite awkward

 

[KevinFastMkV]

thats milltek quad catback. i think it is because of the way they design the exhaust.

 

[daigo]

thats milltek quad catback. i think it is because of the way they design the exhaust.

inner 2 pipe end stuck?
why don't you seal the outer 2 pipe and check it to see if its not a dummy.

 

[ünpimptheauto]

This happens frequently, with "Y" tips.

The exhaust ALWAYS wants to go the path of least resistance (in this case, to the outside tips). There isn't any way of "coaxing" the exhaust to go to the inside ones, to even the soot, unless you welded some sort of baffle in the "Y" section.

You could always do the following:

1. Clean all of the tips, so that they're shiney again.
2. Stuff steel wool into the OUTSIDE tips only, forcing more exhaust gases to come out the inner tips. Keep steel wool inside until the inside tips are sufficiently "black" with exhaust soot.
3. Remove steel wool from outside tips, and THOSE tips will now get dirty.

When all 4 are suffienciently dirty, NEVER wash the exhaust tips (or you have to start 1-3 all over again).

 

[KevinFastMkV]

This happens frequently, with "Y" tips.

The exhaust ALWAYS wants to go the path of least resistance (in this case, to the outside tips). There isn't any way of "coaxing" the exhaust to go to the inside ones, to even the soot, unless you welded some sort of baffle in the "Y" section.

You could always do the following:

1. Clean all of the tips, so that they're shiney again.
2. Stuff steel wool into the OUTSIDE tips only, forcing more exhaust gases to come out the inner tips. Keep steel wool inside until the inside tips are sufficiently "black" with exhaust soot.
3. Remove steel wool from outside tips, and THOSE tips will now get dirty.

When all 4 are suffienciently dirty, NEVER wash the exhaust tips (or you have to start 1-3 all over again).

:thumbup: Thanks! So how much will it be if I welded some baffle in the "Y" section and where can I get it done?

 

[ünpimptheauto]

:thumbup: Thanks! so the only way to "fix" is to make the inner tips black like the outside tips. and there is no way to make the air flow even due to the Y tips design?

We have a similar issue with our BMW E46 M3 El Diablo exhaust...

However, in our case, the #2 and #4 tips stay relatively clean. Similar issue...the exhaust gases go where they wanna go.

 

[KevinFastMkV]

We have a similar issue with our BMW E46 M3 El Diablo exhaust...


However, in our case, the #2 and #4 tips stay relatively clean. Similar issue...the exhaust gases go where they wanna go.

#2 and #4 tips?? you mean stuff the steel wool in the outside tips and never wash the exhaust again?
What if I want to welded some baffle in the "Y" section. How much will it be and where can I get it done:thumbup:

 

[ünpimptheauto]

#2 and #4 tips?? you mean stuff the steel wool in the outside tips and never wash the exhaust again?
What if I want to welded some baffle in the "Y" section. How much will it be and where can I get it done:thumbup:

The steel wool idea is only if you're concerned about making them black "evenly". Otherwise, you can always spraypaint the inside of the tips.

You could try to weld a baffle...but you won't find anyone that can reach that far into the tips to do it cleanly.