mr white

Is that the piping kit you bought too?

Gee oh Dee

I did some exhaust work to my truck over the weekend. Doing a custom design, welding everything myself.

Because there is so much BS about cats and their effect on sound and power I stuck my glasspack on where the cat would go and ran it in my driveway.

There was NO difference in sound. I guess I can't testify for power at all, but that's neither here nor there.

With that said, I stuck the cat right back on the exhaust. There was no benefit to having it off, and its illegal to run without.

All this led me to chuckle about all the folks who think going without a cat is good or beneficial. Because I found the exact opposite first hand.

UsmclovesXJ

noo my firend farmerjohnson on here is trying to run his instide and you also.

Converted96

While this may be true in your case or XJs all together as I haven't tried to run without, nor will I. In other vehicles it is the complete opposite.

I had a 16V VW, and removing the cat gave much improved throttle response and power throughout its powerband. You may say, well the cat must have been bad. I would agree however I removed the cat on almost everyone I had setup with the same effect.

UsmclovesXJ

Lets not get my thread banded plz......
Anyways the super 10 is there a difference between that and the super 10 delta??? Wich one sounds best under throttle and while at idle

UsmclovesXJ

How much modding am I going to have to go threw also..to get my 3in inlet to fit...and I thought about a short turndow...yes ?

Gee oh Dee

Just saying.

From my own personal findings there is no need to run without a cat. And it amazes me how much it comes up giving more fuel for the tree buggers to try and BAN us from off roading.

I was merely commenting on the fact that so much BS is tossed around concerning them its silly.

Slick761

Just a coupler. Not hard. You'll be able to get the right reducers

UsmclovesXJ

no harm done gee i just dont want my thread shut down not bc of you but a full blown talk of cutting of cats

Gee oh Dee

Being that I'm a Mod it wouldn't get closed. Esp since I am giving reason to leave it in place.

UsmclovesXJ

i forgot that lil fact..sorry gee

jmm0122

That is very true. Forgot about the sticker trick. Haha
You don't. Pretty much every flowmaster muffler 40,44, or 10 all drone. If you don't like drone I wouldn't go with flowmaster.

Nickell586

A price of pipe is cheaper to replace the replacing the cat. There's your advantage. $$ if you consider that one

UsmclovesXJ

if i wanted to run the super 10 off my stock cat...at 2.25
and to go up to the 3in opening for the muffler and run it out stright out the back with 3in pipe and tip..would this need to be custom done at the muffler shop and if so how much do you think this would run me..if its to much im going to save my naighborhood and just go down to the 44 with the 2.5 in tail from performace curve.

Outlaw Star

Also I might add that removing a cat WILL NOT gain you more power or fuel economy!! In the 70s and early 80s cats were crap and restricted the engines but since then designs have changed and flow rates have improved over the old designs. In short if you have one removing it is stupid and pointless. Just replace it with a stock or aftermarket high flow assembly.