FCVadi

iTrader: (3)

First, I searched.. went through many threads and there is a good chance I could have just missed finding it

Also when searching I did not know what else to look up other than j-pipe

What I want to know is what is the name of the piece(s) in the image with the red arrows pointing to.. they look like wicker basket type of tubes on all our j-pipes.. also would like to know what the function of it is

I see it on all of them but just don’t know what it does other than look pretty

justnspace

iTrader: (1)

its a flex pipe.
the engine torques or moves when accelerating.
this section of mesh allows the pipe to move with the engine.

SharksBreath

iTrader: (33)

^brilliant.

isn't heeltoe trying to rid that part on his new design tho? or am i crazy?

justnspace

iTrader: (1)

anyway, thats how I understand the mesh part of the pipe.

FCVadi

iTrader: (3)

thanks j-space

if that truly is for flexing then not sure if removing it would be a good idea...

now that I know what that is it makes sense since our engine does move a lot with OEM mounts.. I imagine if we get stiffer mounts then maybe getting rid of it.. but that is just a theory

LIQUID0401

Older designs come without it. You want the flex pipe. It saves you a lot of headaches from you're welds on the pipe cracking over long periods of stress.

EvilVirus

iTrader: (8)

You are correct sir. Flex pipe is just like it says a flexible piece of pipe that flexes when the engine vibrates or you hit a bump and the exhaust moves up and down. It is an isolating device for the sections of exhaust so they can move independently. The final benefit is that it reduces stress on welds in the exhaust system as the pieces move.

Inaccurate

Correct Mr.SharksBreath. Here is the comment made by MrHeeltoe in the "Coming soon to 3G TL from ATLP" (click here) thread.

sauceja

iTrader: (2)

It will also be the first part of the exhaust to deteriorate and give out. Its not solid metal and crap will get in it and cause rusting faster.

But is a needed part in installation/removal and engine torque (haha torque on a Honda).

DaWei

I'm new to this J-pipe stuff too

Does any of the J-pipe pass smog? (in CA)

I been meaning to get one, but dont wanna remove it everytime for smog.

I keep hearing the word "precat/cat delete" and just confused over it

Inaccurate

Here is the info for the pre cat deletes (PCD). Listed in reverse chronological order (new to oldest).

Introducing RV6 V3 Precat Deletes Taking Deposits (click here)
Taming the beast! PCD Rasp (videos posted) (click here)
XLR8 J-pipe install.......Not liking the sound! (click here)
RV6 V2 Precat Delete Interest (click here)
Pre-cats and low end torque (click here)
RV6 (Richie) PreCats **Groupbuy** (click here)
Precat-deletes V2 install (click here)
RV6 V2 Precat Delete (click here)
Precat Deletes + Upgraded Jpipe + No 3rd Cat + Stock Exhaust = very sexy exhaust note (click here)
E-106: Official Pre Cat Delete HOW TO DIY (click here)
Precat Deletes (click here)


Below are links to a few J-Pipe threads. Listed in random order.

RV6 V3 Long Tube J-Pipe (click here)
E-124: ATLP V2 vs RV6 V2 *pics/comparisons* (click here)
i dont know which jpipe to go with... (click here)
Illustration of XLR8's longer primaries (click here)
E-124: ATLP V2 vs RV6 V2 *pics/comparisons* (click here)

justnspace

iTrader: (1)

inaccurate for the win!

SharksBreath

iTrader: (33)

i think inaccurate is one of the only members here that actually gets his "thanks" for posts that deserve to be thanked.

FCVadi

iTrader: (3)

haha.. some other get their thanks that they deserve.. I know I thanked a bunch.. I learn somethng new almost every day... one day my IS security at the company is going to block AZINE with how much I am on it