i dont even deserve to live for asking this but.. If i bought a Hooker Cat back. what is the diff between a cat back and... a muffler or something. or is that the same thing.

 

A cat-back replaces the intermediate pipe after the cat all the way back.

 

makes sense i guess.. So would u still have a muffler?

 

yes, it comes with a muffler.

 

you think im an idiot dont you.



so you pretty much get a cat back AND a muffler all in one!

 

i don't think you're an idiot, I'm far from knowing everything, and we all start somewhere.

that last statement is right, i guess.
but a cat-back is exactly that everything from the cat, back.

 

and you can still buy this if you dont have a cat, right....

 

Why don't you have a cat?

 

more HP and i dont need it.

 

I dont run a cat because I dont wanna get stranded on the interstate somewhere because my catalytic converter decided to stop up. Plus they kill performance one they start to go.

Put a pipe in its place and guess what...flows better, wont stop up, and sounds better....

I do wanna make a fake cat like brodyscamaro did so i can pass state inspection easier.

 

A cat back exhaust system includes a muffler. It's everything behind the cat. Don't be worried about your catalytic converter getting plugged, it doesn't happen as often as people think. If you have to pass smog every once in a while you'll end up replacing it because it's been poisoned enough that it doesn't work well before it gets clogged.

 

heh i shoulda put a pipe in place of my cat but im lazy and cheap lol...plus it resonates a lil better with the gutted cat on there

 

If , I'm not mistaken a gutted cat isn't best, it interrupts the flow of the exhaust, which isn't good, whether it's better than the insides bein there, I guess, but a straight pipe will be best.

 

lol im lazy and cheap....ill put a straight pipe there in aminute i suppose. i shoulda just done that when i put my new headers on, ah well no big deal, itll take 5 minutes to do besides im bored. gives me somthing to do heheh

 

its nice living in saskatchewan where you dont have to pass smog things or whatever the hell you guys call them . i have never driven a car with a cat ever.

 

no emissions testings here either. i guess they put half the rednecks in sc out of work due to them NEVER having emissions on their cars when they *Had* the testings for the 2 years we had them

 

i have another stupid question. The bigger your exhaust pipes, the louder it is and the more HP you get right.. or is it the smaller the more HP caause of more compression or soemthing. for example. If i got hooker headers with a 3 inch out into a 3 inch muffler inlet, and then out the 3 inch outlet into 3 inch tips would that be good?

 

yes, more air flow the better, Back pressure applies to smaller engines not really v8s.....i know if you gut a cat on a 6 cyl or 4 cyl it kills torque

 

correct me if i'm wrong....but the smaller the pipe (obviously not TOO small, though...) the more it helps low-end torque because it increases velocity of the gases, but during high-RPM periods the cylinder can't fill as much due to the small size of the pipe, therefore somewhat hindering high-RPM horsepower....

and the larger the size of the pipe, the better the high-RPM horsepower because the engine can gulp in air and fuel (and push more out), but the poorer the low-end torque because the air/fuel charge isn't moving quickly enough to pack into the cylinders, due to the low velocity.

i'm pretty sure this is how it works...

 

so instead of going to 3 inches go to 2 and a half? or 2? 3 would look mean and sound mean.. VROOOOOOOOOM

 

A single 3'' will be fine for you now, give you a little more power, and yet be there later on for when you plan on modding it more.

 

lol if you want a mean sound ...spring for the headers, i about crapped myself after i installed mine.....best mod i ever did to my car. lets see how i feel after i slap in the other parts heheh

 

Here's the order, from the heads

1) Exhaust goes through the headers
2) To the Y pipe (it is what it sounds like)
3) To the catalytic converter (the cat)
4) To the muffler
5) To the tailpipes

Some people replace from the cat-back so that they can avoid the expense of the replacing the headers (not cheap and a lot of work). Buying a high-flow cat and a new muffler will help free things up a bit and give you a better sound, but ideally you'd want new headers, a high-flow cat, and a better flowing muffler for the best performance.

 

like i said earlier, i was looking at some hooker headers with a 3 inch out, and a hooker aero chamber muffler (i think thats what it was called) with a 3 inch out.