Where should an X or H pipe go?

[DRAZ]

I got bored one weekend and ended up hacking off my Y pipe and making true duals with glass packs on my truck. I think it sounds nice but its a slouch now. Where would the best spot to add an H or an X pipe? I dont have much room between pipes to add much but if I need to I can still remove the whole exhaust system to install an H or X pipe.
Thanks
This is the only picture I have, There is less distance between the pipes up twards the motor

I dont think it sounds bad.. Just a crappy camera

[bobfig]

you want hem to be before the mufflers but after the cats(if you still have them). i would just do a H-pipe and around 4-6 inches after they come together on the same side. for the cross over pipe in the H, you want it to be a size smaller. i.e. you use 2.5" duels the cross over pipe part should be 2.25". its meant to keep the velocity up between the 2 banks. if its 2.25" duels you can stay with a 2.25" cross over from what i hear.

[Pre-StrokerC150]

I have less room between my pipes and I just installed an "X" pipe. It is located after the cats but before the mufflers. I went with an "X" pipe over and "H" pipe because it keeps the exhaust flowing better. With an "H" pipe, there is a 90-degree corner that the exhaust needs to make to flow through the other side. Exhaust is like electricity and will flow the path of least resistance, so not much of that exhaust is actually going though the "H". Car craft magazine did a test between open headers, and mufflers with and "H" pipe and with an "X" pipe. The open headers and the "X" pipe were about equal and the "H" dropped a few numbers. I wish they would have done a comparison without either pipes, but I didn't see it.

All that being said, I notice no performance difference at all. It sounds a lot better though, which is the real reason why I did it. It's a heavy, lifted, 4-wheel drive truck, so it didn't surprise me that I didn't notice anything.

[jbt56]

Since the purpose of a crossover pipe is NOT to trade exhaust gas back and forth, but to equalize the pressure pulses coming from the right and left banks of the engine, an H pipe is just as effective as an X pipe- the only difference (with VERY limited exceptions) is sound. The crossover should go as close to the engine as practical, although having it *somewhere* is better than not having it at all.
Soundwise, without a crossover, what you hear is two very badly timed 4-cylinder engines- that's where the popping/crackling noises com from. With the crossover, you hear the true V8 sound, and make more low-end and midrange torque- the power you use every time you drive your truck.

[deadtrep]

when the very nice x pipe on my chevelle, the car is very quiet ever with blowmaster super 44's (not a big fan) but compared to a vehicle with true duals, the x pipe really mellows out the sound, i feel like the engine sounds like its working better than with individual pipes.

[SUBURBIAN]

Since the purpose of a crossover pipe is NOT to trade exhaust gas back and forth, but to equalize the pressure pulses coming from the right and left banks of the engine, an H pipe is just as effective as an X pipe- the only difference (with VERY limited exceptions) is sound. The crossover should go as close to the engine as practical, although having it *somewhere* is better than not having it at all.
Soundwise, without a crossover, what you hear is two very badly timed 4-cylinder engines- that's where the popping/crackling noises com from. With the crossover, you hear the true V8 sound, and make more low-end and midrange torque- the power you use every time you drive your truck.

Does someone pay you to say this? Badly timed 4 bangers? True V8 sound? Seems like I've heard these things before. C'mon dude.

[XLR8N]

Does someone pay you to say this? Badly timed 4 bangers? True V8 sound? Seems like I've heard these things before. C'mon dude.

He's a Flowmaster Rep.

[SierraDan]

Does someone pay you to say this? Badly timed 4 bangers? True V8 sound? Seems like I've heard these things before. C'mon dude.

You'll hear me say it, i've never heard a true dual setup with no crossover that sounded good to me, doesn't sound smooth just all raspy and snappy. Sounds like a trailer park truck, the guy who just cut his muffler off so it'd be loud. People confuse loud with quality, i'd rather have a smooth rumble than a snappy popping exhaust. Never regretted the H-piep on my Silverado, made the exhuast sound at least twice as good, made me wish I had put it on from day 1 of owning it. I swear by them, they can never harm your truck unless you just like a redneck exhaust.

Don't believe me? Try it yourself, $30 and 30 minutes of your time at a shop. Not a huge loss if you absolutely hate it, but a guarantee you won't.

[SUBURBIAN]

You'll hear me say it, i've never heard a true dual setup with no crossover that sounded good to me, doesn't sound smooth just all raspy and snappy. Sounds like a trailer park truck, the guy who just cut his muffler off so it'd be loud. People confuse loud with quality, i'd rather have a smooth rumble than a snappy popping exhaust. Never regretted the H-piep on my Silverado, made the exhuast sound at least twice as good, made me wish I had put it on from day 1 of owning it. I swear by them, they can never harm your truck unless you just like a redneck exhaust.

Don't believe me? Try it yourself, $30 and 30 minutes of your time at a shop. Not a huge loss if you absolutely hate it, but a guarantee you won't.

Don't force your ideals on me, man. Do you know someone named Dean?

[SierraDan]

Not ideals, I speak from experience. Learned years ago talking out of your ass makes you look like a fool, if I say it it's because i've done it and it works for me. I don't bull**** people when it comes to cars, and exhaust is what I know best, i'm going to school for wleding and fabricating and I hope to one day own my own shop, if not work at a speed shop and be the exhaust guy.

[SUBURBIAN]

Learned years ago talking out of your ass makes you look like a fool

Yeah, and it makes your breath stink something FIERCE too. I'm glad your crossover works so well man. Good luck becoming an exhaust guy. You didn't answer my other question. Do you know someone named Dean?

[SierraDan]

No don't think I do, my first grade teacher's name was Mrs. Dean but that's it.

[SUBURBIAN]

Alright, thought it was going to be one of those small world things...I "know of" a guy that lives in your town named Dean.

[Pre-StrokerC150]

Since the purpose of a crossover pipe is NOT to trade exhaust gas back and forth, but to equalize the pressure pulses coming from the right and left banks of the engine, an H pipe is just as effective as an X pipe- the only difference (with VERY limited exceptions) is sound.

I've read the arguement both ways about how this is supposed to work. If you are equalizing pressure, that tells me that you have one area of lower pressure for a higher pressure to flow to. This is called "exhaust flow" since we are not flowing air. Like it or not, exhaust does flow through whatever system you are using, and for whatever reason, there is a difference as proven by actual dyno tests.