2004 5.4L 3V extended cab.

I am changing my exhaust set-up. Let me know what you guys think of these options. Both options are straight pipe. No mufflers for me.

1) Side exit in front of rear passenger tire. I will keep the factory Y-pipe and run a single pipe to a double slash cut tip.

2) X-pipe duals out the back corners 45 degrees from rear. Single slash cut tips.

Will getting the X-pipe with give me a good performance gain over the Y-pipe. Yes, I did do a search, but I can't find any good answers on this.

Thanks - Any and all opinions and info are welcome

ps - I am selling my my magnaflow 16612 si/so system jimc2004@hotmail.com if interested.

 

Do the side exit in front of the rear passenger tire, but instead of a single pipe run true duals with the X-pipe. I have this done on my truck and I love it! I would highly recommend this! Make sure you use no bigger than 2 1/4in piping to retain backpressure. And yes the X-pipe will give a noticible gain over the restrictive stock y-pipe...

-Kurt

 

x pipe is the way to go! if you want straight pipes, go with 2.5" even if you do loose a little power down low, the x pipe will gain that back but you will have an awesome sound

 

Go with the X-pipe for more gains.

 

Well you want to make sure you don't lose too much back pressure - i don't know about you but losing a little power at low rpms is a big deal. I generally stay at or around 2k rpm....every once in a while hitting 3k. A loss in this power range would make my truck feel like crap. These aren't high reving motors. You want to keep that bottom end.

I'd say cut the y pipe, weld on dual 2.5" and run it into a magnaflow dido then run out in front of the rear wheel.

It's what I did last weekend. It sounds awesome. Not too obnoxious but definatly loud enough.

 

2 or 3,000RPM Put your foot into that thing out once in a while

 

haha because of gas prices my truck is on the 2,000 RPM diet lol. i still get in it every now and then if i line up next to someone

 

Go with the x-pipe and duals..SPINTECH makes a great system. I put one on last week. Sounds awesome.