• Sign Up! To view all forums and unlock additional cool features

    Welcome to the #1 Explorer ST Forum and Explorer ST community dedicated to Explorer ST owners and enthusiasts. Register for an account, it's free and it's easy, so don't hesitate to join the Explorer ST Forum today!

aFe Exhaust

Messages
91
Reactions
53
Location
US
#1
Hey all. I just wanted to let everyone know that it looks like aFe will be releasing a true 2.5" catback exhaust for the STs and other Explorer's/ Aviators with the 3.0tts. They told me they're looking to hopefully release it around the beginning of the New Year, sometime in January. They finished the redesign this week and I just got it back today. Unfortunately, SoCal rush hour traffic did not help with freeway speeds, but from what I can tell so far, zero drone. They just dynoed it today and I'm waiting on an electronic copy so that I can share it with you guys. From what I can make out, this exhaust made max power gains of roughly 17hp and 3lbs of tq, but throughout the graph made highs of 20hp and approximately 23lbs of tq over stock at about 4,500. These numbers are all on a stock ST. They have removed the resonators and chose to use a suitcase utilizing an internal X pipe. If I can figure out how to attach videos, I will try and do a cold start this weekend. It definitely sounds much better than the previous system with the resonators. Feel free to hit me up if you're in the SoCal area if you want to check it out. Again, I do not work for aFe, nor am I paid by them. I'm just their local guinea pig who likes the company and their products.
 
Messages
111
Reactions
37
Location
Calgary, AB, Canada
#2
Interesting.
Does it include midpipes?

Got any pics??

Sent from my SM-G981W using Tapatalk
 
Messages
91
Reactions
53
Location
US
#3
Yes, it includes their mid (flex) pipes. I'll try and get some pics this weekend, but it's their prototype so the finishes aren't production quality. They (aFe) did professional recordings today of all aspects. I believe from the dyno, to interior sound levels and a drive by. Everything should be on their site within the next few weeks including the part number.
 
Messages
49
Reactions
23
Location
WI
#4
Hey all. I just wanted to let everyone know that it looks like aFe will be releasing a true 2.5" catback exhaust for the STs and other Explorer's/ Aviators with the 3.0tts. They told me they're looking to hopefully release it around the beginning of the New Year, sometime in January. They finished the redesign this week and I just got it back today. Unfortunately, SoCal rush hour traffic did not help with freeway speeds, but from what I can tell so far, zero drone. They just dynoed it today and I'm waiting on an electronic copy so that I can share it with you guys. From what I can make out, this exhaust made max power gains of roughly 17hp and 3lbs of tq, but throughout the graph made highs of 20hp and approximately 23lbs of tq over stock at about 4,500. These numbers are all on a stock ST. They have removed the resonators and chose to use a suitcase utilizing an internal X pipe. If I can figure out how to attach videos, I will try and do a cold start this weekend. It definitely sounds much better than the previous system with the resonators. Feel free to hit me up if you're in the SoCal area if you want to check it out. Again, I do not work for aFe, nor am I paid by them. I'm just their local guinea pig who likes the company and their products.
So the whole system is just one internal x-pipe muffler? No additional bottle resonators or anything?
 
Messages
91
Reactions
53
Location
US
#5
So the whole system is just one internal x-pipe muffler? No additional bottle resonators or anything?
If I'm reading this correctly, yes it is a single suitcase x-pipe muffler. It's an upgraded 2.5" system from the cats back with their own flex pipes. The original prototype had additional resonators at the back and the system was too quiet and was right at the edge of droning. With the change to no resonators, it sounds much better and no drone. They're supposed to be posting some videos soon.
 
Messages
49
Reactions
23
Location
WI
#6
If I'm reading this correctly, yes it is a single suitcase x-pipe muffler. It's an upgraded 2.5" system from the cats back with their own flex pipes. The original prototype had additional resonators at the back and the system was too quiet and was right at the edge of droning. With the change to no resonators, it sounds much better and no drone. They're supposed to be posting some videos soon.
Coolness, I have their Vulcan system on my wife's Edge ST and we are pretty happy with it. It will be nice to have another true catback system available.
 
Messages
91
Reactions
53
Location
US
#8
It will be without the resonators though. I just took these 2 pics. That was the initial prototype with the resonators, but they are going without them now. 20211125_102327.jpg 20211125_102341.jpg
 
Messages
91
Reactions
53
Location
US
#10
Sound clips ?


Sent from my iPhone using Tapatalk
I'll see if I can get some going. Unfortunately I don't have a good setup because I'm solo. That being said, aFe is supposed to be posting some videos in the very near future.
 

TMac

Active Member
Messages
530
Reactions
272
Location
Knoxville, TN
#13
Here are some revs after the cold start. I'll try to get a couple videos on my way to aFe tomorrow before they remove it. View attachment 8685

Sent from my SM-G998U using Tapatalk
God, I'm sorry I clicked on that link. Not all of us have fiber! Especially since I could barely hear it.
 
Messages
91
Reactions
53
Location
US
#14
God, I'm sorry I clicked on that link. Not all of us have fiber! Especially since I could barely hear it.
I apologize. I suck with posting these things.
 
Messages
116
Reactions
76
Location
The midwest
#16
Looks nice, but probably no real difference in performance despite their claims (the 2-1/2" Magnaflow kit is similar). Just as economical to go with an axle-back kit unless you are in need of new flex-pipes. Otherwise, decent sounding.

P.S. @Clears: You have that 3-bolt rear subframe - just be cautious of that if you start cranking up the mods!
 
Messages
91
Reactions
53
Location
US
#17
Looks nice, but probably no real difference in performance despite their claims (the 2-1/2" Magnaflow kit is similar). Just as economical to go with an axle-back kit unless you are in need of new flex-pipes. Otherwise, decent sounding.

P.S. @Clears: You have that 3-bolt rear subframe - just be cautious of that if you start cranking up the mods!
Yeah..... I know that I got screwed with the 3 bolt. It sucks, but hopefully Ford will make things right for all of us.
 


Top