Question about Headers, exhaust, etc...

Okay, say I want to get headers on my car and I get:

slp long tube headers,
slp xpipew/cats,

do you need to get exhaust as well? Like will the Stock exhaust not be able to handle them.

What I am asking, is this thing a total package deal no matter what, if you get headers, (long tube), you need to get an H-pipe or X-pipe with CATs AND exhaust, for instance, if I get the slp loudmouths, I would have:

slp long tube headers,
slp xpipew/cats,
slp loudmouth exhaust,

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Also, can you mix and match them. Say I get:

slp long tube headers,
slp xpipew/cats,

but have

Flowmasters American Thunder Exhaust

Would this work, or do you have to pretty much get things that work well together???? and some things definitely don't or something?

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I know that if you get Long tube headers you must get CATS with them to make them legal. So i understand that. So if I were to get SLP long tube headers the combo can be:

slp long tube headers,
slp xpipew/cats

but what I am trying to figure out is, do you need exhaust as well, replacing the stock. And can you mix and match the brands.

Or am I missing something or needing something else with this combination below, lets say:

JBA Long tube headers
H-pipe with CATS
Some exhaust (not stock thinking they may need to be replaced - so Flowmasters American Thunder)

Would that work?

A little insight on this would be helpful, thanks!

Okay, I think I get it now. So I can get long tube headers that will require an X/H pipe w/ Cats and that is basically your exhaust and they can work well with the stock mufflers. And then if I wanted to, I could get different mufflers such as Flowmasters American Thunder, for example.

So I could get these Kooks

http://www.modulardepot.com/product_info.php?products_id=229

And leave it as that, just use the stock mufflers. And then if I wanted to later on, I could get the Flowmasters American Thunder mufflers, if I wanted too, granted that the combination is compatible, meaning they fit together. Is this correct???

Or vice versa, get mufflers and leave it at that, and then if i ever wanted to, get the exhaust system. Do I have this all correct now?

Motorhead6T5 said:

The stock axle back should work fine.

Click to expand...

Your referring to the stock mufflers right? I'm getting that confused with axle back.

Okay I get it now! Thanks for the responses!!!

Oh yeah, one other thing.

I've already included a CAI with a SCT Cal2 tune to the car.

Does getting new mufflers, (such as flowmasters), will that require for me to re-tune my car???

Also, what about getting headers, x-pipe, all that with the exhaust system? Will I need to re-tune my car for that as well.

I'm curious cause, if so then i'll probably wait till I get both and knock it all out at one time!!!