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I just ordered an Airaid CAI for my 2001 F150 5.4 SuperCrew. I want to do my exhaust next, but am stuck on what to do. Need any help or ideas i can get. One thing is for sure, I want the exhaust to have dual exits on the passenger side in front of the rear tire, like the lightning. Does anyone know if the 5.4 performs better as single exhaust or true duals? If i go with duals i'll probably use a X-pipe. I want my truck to be pretty loud at idle and even louder at WOT, although I don't want to be pulled over by the cops every 2 seconds, maybe once every 30 sec, ;-) If possible I want a system that will increase power. I would love it if it would sound like a mustang, but i'm sure it won't due to the stroke difference. I was thinking about splitting it at the Y pipe into 2 and going into a X-pipe right before 2 SLP resonators then out the side. But i'm not sure how that will sound. What about Roush off road exhaust? I am very picky about the sound I want, I need help! I don't want it to sound all poppy and big rednecky type truck(no offensive anyone, just not for me), but more like a performance street truck. I also want to keep cost to a minimum if at all possible. Thanks.
Ok, the things that stood out is that you are picky about sound, you don't want it poppy, and you want to keep the cost down. If you used a single exhaust with a dual outlet muffler, I think that would do what you want. Since you want some sound at idle, I am leaning towards Flowmaster, they have a good tone all the time, with the volume increasing with throttle. However, it is hard to judge exactly what kind of sound you are after. Our Wickedflow mufflers are also available with dual outlets, a little bit quieter at idle, but also pretty loud under throttle. You could go glasspacks, but I think those will start sounding poppy. The X-pipe option would be pretty good to witht he x-pipe, I think these trucks perform better as either a single exhaust or X-pipe. I do have some Flowmaster style mufflers with dual in dual out, which could be used in place of an x-pipe. Let me know if you are interested.
Will there be much of a sound difference between one pipe or dual with x-pipe? If I went with dual with x-pipe, which would be louder or sound better, going into a 2in/2out muffler or going into seperate single/in single/out mufflers.
After doing CAI and exhaust will I need to worry about my air/fuel ratio? I'm sure it will change, but will it become too lean?
Don't go with true duals, its a waste of money and is pointless on the 5.4l. A properly sized single exhaust or a SI/DO muffler will work very well. Since you want to go with dual exits I suggest a SI/DO muffler. As far as sound goes a shorter exhaust will be louder and tend to be more harsh. I would suggest exiting the pipes behind the rear wheel. Due to the exhaust set-up on trucks it will be difficult to get it to sound like a mustang. The truck exhaust is longer and doesn't have an X-pipe set-up or a good way to route an exhaust with an X pipe because the exhaust has to be routed down one side only.
You don't have to do any tuning to the computer to adjust the A/F ratio. I'm running an SCT Xcal 2 with a custom tune from 5-Star tuning and I highly recommend it.
[quote=kpayne8814;6097498]When i say use an x-pipe, this picture below is similar to what i am talking about.
There really isn't a need to go with a dual muffler setup like that that requires dual inlets. (Stock SuperCrew has a single exhaust) A single in/dual out muffler will do the job cheaper. This is the setup I used to have on my truck using a SIDO muffler connected to the stock pipe.
The muffler was a Dynomax Ultra Flow Stainless $105 3"In/Dual 2.5" Out. I have the 6.8l in my truck and that exhaust was pretty loud. Sorry don't have any sound clips of that exhaust, I no longer have it on my truck but the muffler is still laying around. With the muffler, tips, tubing and install all together it cost about $300. Just giving you an example, you can buy an aftermarket cat-back or get a system bent up with the tips and muffler you choose. I highly recommend getting the exhaust mandrel bent.
We have a large bodied Wickedflow listed on our site, should be the last on on the list. We have a bunch in the smaller case which is a little louder, but should be the kind of sound you are going for without breaking the bank. Unfortunately I don't have a sound clip for it at the moment. The sound is very similar to the Magnaflow, maybe a hair quieter, though it will get a little louder after a few weeks.
Unless you will be reusing the stock tailpipe and such, I agree, get some mandrel bends. I will check into a prebent system for your truck, I am supposed to be getting a new master catalog with a bunch of catback systems. I do agree, a single exhaust with a dual outlet muffler is probably the most cost effective choice, a true dual is not likely to gain much unless you match it with headers and performance cams.
bear river do you have any prebent systems for a 80 chevy 350/4 speed 4X4 with 2 1/2 inch pipe or at least the just the tail pipes over the axel then turned out behind the wheels? true duals also and i dont want an x pipe or an h pipe or anything like that i dont even need mufflers
So why don't you have it on ur truck anymore? What did you change it out with? My stock exhaust is 2.5"
I put a set of Thorley headers/y-pipe on my truck and the sound completly changed. I didn't like the way it sounded so the exhaust got ripped out right at the converter and a new system put on. I have the V10 and it can sound weird depending on the exhuast system used. Heres what it sounds like now. Video of 6.8l Exhaust - Photobucket - Video and Image Hosting
I'm running a single 3" Flowmaster Force 2 Cat-back with a modified FM70 muffler exiting behind the right rear wheel.(stock location) The system is all mandrel bent. Heres a link to some pics of my exhaust.https://www.ford-trucks.com/forums/7...-fm70-mod.html
Hmm, that V10 sounds all right, though they should have shown how it sounded through various RPM ranges, not just idle while occasionally goosing it. But still, it sounded good, and that is hard to do on a V10.
I do not do anything with pre-bent tailpipes at the moment, and what will be available in the new catalog is likely to be mostly newer stuff and part of a catback system, but I will call the manufacturer and ask them if that have anything for your truck.
[quote=Bear River;6105060]Hmm, that V10 sounds all right, though they should have shown how it sounded through various RPM ranges, not just idle while occasionally goosing it. But still, it sounded good, and that is hard to do on a V10.quote]
Reving up and holding the rpm in park with no load is pointless. Its hard to drive and make a decent sound video. I chose to make a sound clip like the majority of other people do.
Don't me wrong, I know getting the best sound clips requires load, however, I like to hear the sound at different RPMs, since the tone changes and you can get a feel for what it would sound like driving it.
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