Thanks for your help Bigg Boss93, I think I terribly messed up something. I followed your instruction and as I went to test it out in-game it rendered two version of the turbocharger exhaust pipe lol

I'll paste what I did:
--------------------------------------------------------
<FILE 00000213.rsd >
sourcefile parts\engines\Einvagen_Duhen_Ishima_Focer\meshes\LOD3\turbocharger_exhaust_pipe.scx
</FILE>
<FILE 00000214.res >
typeof 7
superid 0x00040005
typeid 0x00000002
alias Einvagen_Duhen_Ishima_Focer
isparentcompatible 1.00
</FILE>
<FILE 00000214.rsd >
</FILE>
<FILE 00000215.res >
typeof 7
superid 0x00000002
typeid 0x0000011G <<< changed it to that from 0x00000117
alias tube.png <<< changed from inline4.dds
isparentcompatible 1.00
</FILE>
<FILE 00000215.rsd >
sourcefile parts\engines\Einvagen_Duhen_Ishima_Focer\textures\tube.png <<<< same here
</FILE>

Next I went to the CFG:
"turbocharger_exhaust_pipe.cfg"
--------------------------------------------------------
render 0x0000013C ; "turbocharger_exhaust_pipe - 1 1" I copied what's in red
lod 1 1 //hi-res
render 0x0000002B
lod 2 2 //extr-hi-res
mesh 0x0000002A
click 0x00000073

body 0.0 0.0 0.0 0.0 0.0 0.0 2.0 sphere 0.1
noclick
nocollision

category 1

slot -0.028 0.000 0.000 0.000 0.000 0.000 56 ; turbo_exhaust_pipe_OUT
attach 0x00000048 55 ; turbocharger->turbo_gas_out_IN
attach 0x00000113 55 ;
attach 0x000000F4 55 ;
attach 0x0000010D 55 ;
attach 0x0000010C 55 ;
eof

Next, I went back to the rdb/rpk and searched for "0x0000013C"
--------------------------------------------------------
</FILE>
<FILE 00000241.res >
typeof 14
superid 0x00000114
typeid 0x0000013A
alias turbocharger_air_out_pipe
isparentcompatible 1.00
</FILE>
<FILE 00000241.rsd >
mesh 0x00000139
lod_amp 3.000
texture 0x00000117
</FILE>
<FILE 00000242.res >
typeof 14
superid 0x00000114
typeid 0x0000011G changed it to the new 4 digit exadecimal. It used to be 0x0000013C
alias turbocharger_exhaust_pipe
isparentcompatible 1.00
</FILE>

Im so bad at this I just started learning yesterday so please be nice