Alright, another stupid question...can you tell the difference between Off-road X-pipes and the catted x-pipes? What is the difference?

 

off road has no cats, better air flow. it'll give you 1 or 2 extra ponies over a highflow catted X.

 

Ah!! So would you say the exhaust is louder than the catted versions?

 

yes it is louder.

off road is also not emissions legal.

 

emissions eshmissions.

 

So if i buy the Magnaflow Catback system (http://mustangtuning.com/maca94gt.html) and want no cats I buy the O/R X-pipe(http://mustangtuning.com/x.html) Correct? Sorry, I am a big noob with exhauts, I just love the sound and know the companies.

 

Correct. Catback and Midpipe are different parts if that's what you are asking. However you don't have to buy that expensive SLP X pipe if you don't want to. I wouldnt really recommend that unless you want to swap their high-flow cats on there from time to time. Or if you are getting Longtube Headers soon and don't want to buy another pipe. You could get another O/R X pipe for half the price of that one...

 

Another noobie here...

1. So the only benefit of an no-cats (O/R) instead of high flow cats is about 1-2hp?
2. Am I correct in saying x-pipes are used to simply equalize pressure between the two sides?
3. If so, what is the true benefit of this?
4. Do people run Cats with an x-pipe or is that counterproductive?

Still a newbie... but learning more everyday...

Hope you don't mind the grilling!

 

1. Yea the difference between high-flow cats and O/R is only gonna be 1 or 2 hp at the most. And that isnt the only benefit, O/R pipes are louder, and less expensive.
2. Pretty much.
3. By letting the exhaust gasses between the 2 banks intermingle, you make more power and torque by balancing pressure differences.
4. Catted aftermarket midpipes all come with high-flow cats which are a lot less restictive than the stock cats. So no it is definite a lot better to have high-flow aftermarket cats than the stock restrictive cats.

 

Gotcha... so you for instance, currently you have an SLP Loudmouth Catback system but are looking to add an H/X pipe, right?

1. Will the H/X-pipe replace your Cats or does the H/X pipe come before the Cats?

Please pardon my **** questions... I'm just really interested in learning about this and it's hard to find people (or a shop) that will give you a straight answer.

Thanks again,