JS Downpipe Question

[Foot Performance]

I am drilling the 4th hole on the tubo and was wondering how deep to drill the hole or do i go all the way threw???

Any help would be appriciated :tup:

 

[JSM]

Re: JS Downpipe Question

You really only need to have about 1/2" or a bit more of threads. If the housing allows you can drill through to make tapping easier.

 

[Foot Performance]

Re: JS Downpipe Question

I planning on drilling threw with it as close as i can get it i have about 3/8 of an inch so i will drill it and tap it i dint know if there would be any issues if i went all the way threw

 

[George Blake]

Re: JS Downpipe Question

I drilled mine through all the way. I figured it would be easier to get out later if I could access the threaded end to apply heat and oil or pb blast.

 

[Black Knight]

Re: JS Downpipe Question

I drilled mine through all the way. I figured it would be easier to get out later if I could access the threaded end to apply heat and oil or pb blast.

x2, I drilled mine all the way through :tup:

 

[Loeryder]

Re: JS Downpipe Question

I had the same question just haven't pulled mine back apart to drill it out yet.

Jeff do you have the pic posted of the "rib" section you removed from yours?

 

[Foot Performance]

Re: JS Downpipe Question

I used a cut off tool and cut strait down to the puck and then grinded the lower puck weld off and it hammered out I can get a pic of mine if you want

 

[JSM]

Re: JS Downpipe Question

I used a cut off tool and cut strait down to the puck and then grinded the lower puck weld off and it hammered out I can get a pic of mine if you want

Exactlywhat I do also. I then blend the inside and radius the edges that are left a bit. Basically match the shape of the flange on the DP.

Once you open it up and compare it to stock, you will ask yourself how the stock had any flow to begin with.

 

[Black Knight]

Re: JS Downpipe Question

I had the same question just haven't pulled mine back apart to drill it out yet.

Jeff do you have the pic posted of the "rib" section you removed from yours?

Jason, I got these from mine if they help.

 

[JSM]

Re: JS Downpipe Question

Nice downpipe, where did you get it?

Roy did it almost exactly how I do them.

 

[Black Knight]

Re: JS Downpipe Question

Nice downpipe, where did you get it?

Roy did it almost exactly how I do them.

What's almost, what did I miss, LOL :rotf:

 

[JSM]

Re: JS Downpipe Question

I do a little blending on the inside lip inside the housing itself. Help to let the air flow out.

 

[Black Knight]

Re: JS Downpipe Question

Aww, good point!