hey guys. i'm going to be doing a test pipe through the stock cat and wondered if anyone had done anything similar.

we were planning on torching out the center pieces in the cat (important stuff) and using an air hammer to clear the remaining. then run a 2.25 through extended inlet/outlet and weld into place.

making it look like a stock cat, but is really a testpipe. has anyone done this? im just checking other options. thanks.

 

i wanted to do something similar but don't have the tools. do it up and let us know how it comes out. with pics of course

 

You could just tack weld the heat sheild over the test pipe, no cop is going to look that hard.
gmoore

 

no more heat shield, we thought of that also. i'm sure we could find one, but just in case the inspector hits the cat (like theyre supposed to) it'll sound functional.

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by tegunderpressure &raquo;</TD></TR><TR><TD CLASS="quote"> no cop is going to look that hard.
gmoore</TD></TR></TABLE>
yea no cop but who ever is inspecting your car might. and fail it.

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by vteGraGSR &raquo;</TD></TR><TR><TD CLASS="quote">
yea no cop but who ever is inspecting your car might. and fail it. </TD></TR></TABLE>

True, but I was thinkin of Florida, we dont have SMOG...
gmoore

 

FYI, you car is going to litterally STINK.

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by teamlegacy &raquo;</TD></TR><TR><TD CLASS="quote">no more heat shield, we thought of that also. i'm sure we could find one, but just in case the inspector hits the cat (like theyre supposed to) it'll sound functional.</TD></TR></TABLE>

all they would have to do is turn on your engine and then they will realize right away you have no cat cuz ur car is goin to smell

 

https://honda-tech.com/zerothread?id=614422

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by teamlegacy &raquo;</TD></TR><TR><TD CLASS="quote">hey guys. i'm going to be doing a test pipe through the stock cat and wondered if anyone had done anything similar.

we were planning on torching out the center pieces in the cat (important stuff) and using an air hammer to clear the remaining. then run a 2.25 through extended inlet/outlet and weld into place.

making it look like a stock cat, but is really a testpipe. has anyone done this? im just checking other options. thanks.</TD></TR></TABLE>

this is exactly what me and my friend were talking about the other day go for it...

 

comptech has one already made check it out pretty pricey tho

 

[QUOTE=teamlegacy]then run a 2.25 through extended inlet/outlet and weld into place.QUOTE]

You're going to have quite a lot of difficulty trying to fit 2.25" tubing through the stock cat.

 

haha yea, we got it done. we used a really big pry bar and a hammer, and some patience and hammered everything out. then we widened one side slightly and ran 1 7/8 pipe and welded it inside.

on my car the 2.25 testpipe smells a lot worse than my friends car does.

 

yeah urs smells a lot worse than daniels

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by teamlegacy &raquo;</TD></TR><TR><TD CLASS="quote">haha yea, we got it done. we used a really big pry bar and a hammer, and some patience and hammered everything out. then we widened one side slightly and ran <FONT COLOR="red">1 7/8 pipe</FONT> and welded it inside.</TD></TR></TABLE>

Yeah, that was my point. The stock cat. is nowhere near 2.25" in diameter.

 

when i made my test pipe i just tack welded the bottom half of the heat sheild to it. looked real once it was on the car and on the ground

 

iowa baby no emissions or atleast they dont care. i just testpiped mine today and did header. straight pipe with two nuts welded on so i could put sensors back in and done. i dont gotta hide anything. haha good idea and good luck with it.

 

yea it worked out well, made the apexi dunk sound deeper.

my car w/ testpipe makes it really buzzy, kinda grr, but i can feel the difference (thats in an accord)

2.25 testpipe &gt; 1 7/8 hide away pipe &gt; catalytic converter

 

i did it

https://honda-tech.com/zero...92351

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by irev210 &raquo;</TD></TR><TR><TD CLASS="quote">i did it

https://honda-tech.com/zero...92351

</TD></TR></TABLE>

Daniel...link dont work....lol

As for this idea, there was a thread about this last month. Some guy from a shop successfully did it. Also, there's a guy on here (h-t) that sells heat shields for $50 that you just weld over your test pipe to make it "look" like you have a cat. In California, especially in the bay area and probably socal, cops are truly **** about the smallest things. They'll pull you over and try to find anything wrong with your car...and yes my friends have had cops shine flash lights and placed a mirror underneath the car to check to see if a cat was present. I've been running a test pipe, and although it doesnt smell all that great, the power makes up for it...IT SMELLS THE WORST WHEN YOU RUN A CHIPPED ECU & a TEST PIPE, but then again, the car RIPS!!!...also it has the nice throaty sound as well. The stock cat just restricts too much.

 

why dont you just get a test pipe, and then put a heat sheild around it? it sounds like you.re going to be going through a lot of trouble for something that can be solved in a much simpler manner.

maybe im wrong. school me.

 

https://honda-tech.com/zerothread?id=618758

here we go

for the people that want something thats looks as good as the real thing

 

y not just punch out the cat?

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by [ iLL &raquo;</TD></TR><TR><TD CLASS="quote"> iNt3GrA]y not just punch out the cat?
</TD></TR></TABLE>

Sounds like ****.
gmoore