I installed my XTC Catless downpipe just the other day, and got a before and after video clip. I'm running the 60 lb injectors with a 2.5 pulley, 2.5 xtc downpipe to the corsa sport exhaust.

Also, At the time I had a bad fuel injector. I have since got it fixed, but thats the reason why the idle is so incrediably bad.

This is with the Cat

Without the cat

 

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Not working for me, anxious to hear though. Says not available yet.

 

It works now BRB.

 

It's definitely more raspy without the cat.
My honest opinion is....I like it with the cat bro.
Your car must haul ass either way!

 

i liek with ut the cat def the way im going is no cat

 

sounds raspy w/ no cat but gotta sacrifice sound for performance.

 

not that much diff, thought it would be way louder, but still with the cat sounds better IMO.

 

YUP....

 

i like the tone change tim...and think about them injecters!!!

 

how long was your car running before you shot the video without the cat?? i know its a wierd question lol.

i do like it without the cat though

 

now we need to hear one with highflow cat

 

**** i think they sound pretty much the same.

 

+1

 

listen to mine, not xtc but you will get the idea...

 

That actually sounds good dude, cant wait to hear what my car is going to sound like with the 3inch xtc d/p and my aam 3' exhaust.

 

I like the way it sounds both ways.

 

as usual the cat delete sound slike crap... but it's a small price to pay to go faaaassstttttarrrrrrrrr

 

I can't hear it (my sound card took a dump)
I'm just gonna assume it got really raspy and REALLY loud, just like mine

 

Yeah the tone definitely changes but who gives a ****? The car is going to be rediculous now Tim. When is the W/I going on? IM me when you get a chance, I'd like to take a look at your tune.

 

I really dont think it sounds that bad. Its wayy different tone, but not that bad.

 

only way to judge is hearing it in person under load.....

 

that what i think 2

 

Im putting my dezod 2.75 high flow cat on first thing in the morning. Will post vids up tom evening....

 

It is a lot louder when your inside the car then it was before. I prefere the sound from before, but like you all have said, performance before sound.

Also, I didn't really spend too much time warming it up. The with cat video was only on for a couple minutes, if that. I didn't want it to get too hot before working on one of the hottest parts on the car.

Without the cat, I just turned it on for a little bit before playing the video. Since I was having problems with the injectors I didn't want to do too much.

Next time I go to the track I'll have someone tape and see what it sounds like. Actually, I'll see if I can find one.