What sounds good.

50specialist said:

I went from old flowmaster 2 1/4 catback to the 2 1/2 catback and it's much louder with the same brand, which is 40 series 2 chamber flowmasters. I like it also, since it matches my 2 1/2 inch off road x pipe. X pipe is louder and better for engines producing serious power.

Look at the two above. Imagine when you are up in the mid to high rpm range and the exhaust flow is increasing in speed. Will it miss the sharp turn of the H pipe at high speeds while the x pipe forces the two exhaust flow paths to meet?

Think about it.

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listen to yourself. do you know what you are talking about or are you just reading the product details from your jegs catalog? the exhaust won't just "miss" the crossover of an H pipe just cause you're in the higher rpms. that's like saying if you drive faster on the highway with your windows down, no air will come in the car. air flows to where the least amount of pressure is. if one bank has less back pressure, the crossover WILL equalize it. apparently not as efficiently as an X, but still will, nevertheless.

and i wouldn't say X pipes are louder than H pipes. they have different tones, thats for sure. i had a bassani offroad X pipe with 40 series flows on my car when i first got it. it was quiet at idle but screamed at WOT. very raspy tone. it sounded good but i didn't like the tone as much so i switched it out with an offroad H pipe and spintechs. definitely noticeably louder at idle and just as loud as the X at WOT. just a different/deeper tone. i'm sure the spintechs helped with overall volume a tad bit though.

pypes dollar for dollar is the loudest for muffler. next would be bullets or some other glasspacks tyled muffler....but pypes is just really str8 through muffler with zero deading design, i do no tlike mine im going for 40's or something to quite her down...

I'll prolly never have anything but 40's on mine again, my friends 2 1/2Magnaflows with catted X sounded nice, though. Loud is one thing, though, sloppy noisy is another, I wouldn't have glasspacks on my car. My Ford Racing off road H has never made me wish I had a different setup, either. The crossover is just to equalize the flow, at higher rpm's air is just forced straight out. Elliot Sadler flipped on his roof at Talladega a couple years ago, saw Yates uses an X setup, but I don't need that last 1/3 horsepower. Mine sounds like a proper 5.0, you know what it is before you see it. Idk what the bigger motor will do to the sound, though. Depends on what you want the car to do.

Another one chiming in for off road x with MAC cat back with tailpipes. Every stang I've heard with this combo sounds amazing.
I have a couple videos if you want them.

MAC doesn't make another muffler besides the Flowpath...and dont run dumps...its irritating to drive and the car looks naked without some nice shiny tailpipes out the back

Makdaddymac said:

pypes dollar for dollar is the loudest for muffler. next would be bullets or some other glasspacks tyled muffler....but pypes is just really str8 through muffler with zero deading design, i do no tlike mine im going for 40's or something to quite her down...

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If you're getting rid of them, send those puppies on over my way instead of tossing them out. I need something to put on my '84 when I go to duals ... although I may have to fight Frankenstang for them, because she's nuts about those mufflers, too.

I'll say offroad H pipe and 1 chamber flows. I've heard a 351 fox car with 3 inch straight pipes all the way back, that had to have been the most obnoxious sounding car I've ever heard on the street.

what will sound good with a bbk x pipe with high flow cats. i got flows with it right now but i want litle louder.

90lxcoupe said:

Magnaflows sound great, but are on the quiet side. If you want LOUD go with spintech prostreets. Cam/Intake/Clyinder head have as much to do with how loud the car is as the muffler.

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My AFR headed 347 with prostreets is louder than my '89 GT open headers.....

faststang87 said:

I have noticed that alot of people are against the dumps, which is understandable there is nothing like having shining tail pipes coming out of the back. I am going to look into MAC flowpaths or the spintech exhaust. I will tell you guys one thing though, I have had my flowmasters on my car for years and I think it sounds too hollow. I dont know if anyone else thinks this or if it is just me. Any input on this would be great though. There is nothing like pulling up to a foxbody stang with a nice rumble to it. Put fear into chevy owners!

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Dump the dumps- just raucous noise, unless you want a race car, no radio/conversation. Two chambers/off-road H sound like a proper Mustang should, everyone, especially Chevy owners, know what it is, before they see it. Not at all hollow; deep, thundering, blue oval storm, when done right!