bbbwrx

iTrader: (10)

A little mod that I just finished doing.

Tools used:

1/4" drill bit
Chisel
Hammer
Flat head Screw driver
Mig welder
Vise Grips
Grinder

Items needed:

Test pipe
Stock Cat



1 With the cat out of the car. Take the cat and grind the welds on each seam down. Then drill out the weld at each corner of the heat shield(the weld is the bronze/rust looking circle.

2 Pry the heat shield and grind until you break all the welds free and have both halves of the heat shield off.

3. With the test pipe still on the car take the heat shield and mark where you want it to be. Orientation is important to keep heat shield away from drive line.

4. Tac weld one side of the heat shield to the test pipe.

Picture of how it should look so far


5 Get 4 small nuts and bolts together a little smaller or equal to the 1/4" inch holes you made. put those through the holes and tighten down. (don't forget lock washers)

Then tac weld the heat shield together.


Test to make sure your welds are good.

Then Enjoy the highest flowing cat on the market.




*DISCLAIMER FOR OFF ROAD USE ONLY. NOTHING WRITEN HERE IS THE RESPONISBILOTY OF THE AUTHOR!! MOD YOUR CAR AT YOUR OWN RISK AND ACCEPT THE RESPONISBILITIES FOR DOING SO.

skurukutoi

this has got to be the most clever DIY job ive seen in a while

dubIX

iTrader: (3)

Man, great job! Why didn't I think of that?

dudical26

iTrader: (17)

why not just drill out the stock cat.

MM Racing

iTrader: (6)

Stock cat still has only 2.5 or less flanges on it.

Spec'd

iTrader: (16)

That's pretty sneaky there, don't you think ?





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Vroompsh

iTrader: (5)

i hope you like, I LIKE!

saiyanzzrage

iTrader: (11)

ive seen this before, def a good mod!

zachissak

iTrader: (1)

This mod is done alot in Cali where they have visual inspections. I live in Oklahoma where they dont care about **** here lol

EvoDan2004

iTrader: (94)

same concept i did. i get cat's for 30 to 50 bucks so i got a 3 inch cat and gutted it out. then ran a 3 inch pipe thru it. same thing just 50 bucks not free like this

p.s. yes that is the price i get them for. mark up on cat;s are nuts.

Blue Evo 8

iTrader: (40)

will the heat shields rattle?

EVOIXMR8916

iTrader: (8)

so are you saying you can get us hi flow cats cheap too.....im feeling a new vendor (lol)

evobeaner

not if you weld correctly.

bbbwrx

iTrader: (10)

No rattles from me yet but if one of the welds break I will just hop under there and re-tac it

EvoDan2004

iTrader: (94)

i probly could but i wont deal with the problems that may come along with it. sorry.

and the heat shield's should not rattle if done right.