catted vs off road x pipe - Ford Mustang Forum
 
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Old 02-05-2010 Thread Starter
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catted vs off road x pipe

I am looking at getting a pypes long tube headers and a off road shorty x pipe package for my 05 gt. What would be the reason for buying a catted x pipe? Is it for vehicle inspection purposes?


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Old 02-05-2010
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The cats will help quiet down the exhaust. The X pipes tend to bring out some rasp in the exhaust note, especially on a chambered muffler. On a can muffler, they sound sweet. I run Bassani LT's, O/R X and Bassani cat backs on my 04 and it sounds sick IMO. The cats will allow to pass emissions in some states but not others. Give us a call if you have any questions.

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Old 02-05-2010
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OR mid pipes are LOUD and stinky, they tend to be mind numbing from drone on long highway trips. I have a magnaflow catted X and its plenty loud, far less restrictive than OEM cats and still passes inspection.

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Old 02-06-2010
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If you have emissions testing you'd want the catted pipe.

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Old 02-06-2010
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Quote:
Originally Posted by socasam View Post
What would be the reason for buying a catted x pipe? Is it for vehicle inspection purposes?
I have cats so my car doesn't sound like I'm 16

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Old 02-06-2010
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I ended up pulling my cats after they plugged but I ended up adding resonators to tone it down.

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Old 09-18-2010
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Hey I'm sixteen and I run x pipe no cats loud and proud lol but anyway for inspection purposes u want cats and if u want a little more peace and quiet

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Old 09-18-2010
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Well to be technical, under Federal law, you can't move or manipulate the cats without proving that they were damaged or stolen, unless it's a off-road car.

That being said, a catted X pipe would pass most emissions tests (but perhaps not a visual test) depending on your state.

Splice in X pipes are a popular 50 state legal compromise since it leaves the stock cats in place.

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Old 09-18-2010
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When I did the LT thing I started out with O/R x-pipe. Couldn't here myself think, not that I do alot of that. Added high flow cats and really cleaned up the sound and made it livable in the car. The car is still loud when I get on it and sounds aggressive even at cruising speeds. With LTs and an x-pipe you won't want chambered mufflers. I ended up with Pype Bombs because the Violators were too much.

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Old 09-19-2010
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I had an offoad xpipe on my car when I bought (didn't know though) and it was loud as hell. I bought some pipes hiflow cats (cermaic substrate) and it quited it down a lot, I am pretty sure it did impact the car's performance a tad. Unless I equated loud with fast I am fairly certain it did slow it. Before I put those cats on I was that Ahole that woke everybody up when I went to work in the morning, don't be that guy, it's genuinely loud.
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