fightman80
New member
Gonna research this a little... and hopefully either the Flowmaster 50 Delta or the 18" Magnaflow and get it installed this week, or the next!
Help me pick an exhaust!!
- Thread starter fightman80
- Start date
FROGrunner
New member
Here's some food for thought, as to why I wouldn't go the magnaflow or flowmaster route:
Exhaust literally flows like water. Not only that, but a very good analogy about automotive exhaust is that it flows like traffic on the freeway. For the sake of "keep it simple" I'll use the freeway analogy in this article.
Picture 3 very busy on ramps in Los Angeles, or Atlanta rush hour traffic. These 3 on ramps are only 20' apart from each other and have only a 100' runway before they force themselves through all 3 lanes of traffic and merge you right into the fast lane at a 90* angle. That is your stock exhaust manifold.
From there you travel 1/4 mile or so and you reach an area of the freeway that not only has painted lanes to separate traffic, but lining the lanes there are steel poles. Not only are there poles lining the lanes but the poles cause the lane to become so narrow that there is only a foot of clearance on either side of the vehicle. This is your first catalytic converter. Then you travel the length of a football field and come to another field of narrow lanes lined by steel poles, that's your second catalytic converter.
Now, it's smooth sailing for another quarter mile and you merge with an entirely new 3 lane freeway that just went through what you went through, all 6 lanes have to merge back into a 3 lane highway, this is the y pipe.
Continue on for another 1/4 mile and there is a huge brick wall right in the middle of the freeway!!! This brick wall blocks all 3 lanes! With no signs saying which way to go to get around it. Some traffic is going right, some left. But ether way you go the only option is get right up to the wall, stop, then go around using the left or right shoulder of the freeway. Now go around 2 more brick walls right in the way of the lanes!! This would best describe your muffler.Continue down some sweeping long curves with very little obstruction and exit the freeway into oblivion, this would be your tailpipe.
What does all of this tell you? What part of this freeway would you fix first? Obviously the brick walls in the middle of the freeway are causing the most back up in the entire system. For goodness sake, you have to completely stop and in no certain order go around the walls before you can continue on to the long sweeping curve that is your tailpipe. You see you want scavenging not nessarily always just back pressure. Just my .02 cents
Exhaust literally flows like water. Not only that, but a very good analogy about automotive exhaust is that it flows like traffic on the freeway. For the sake of "keep it simple" I'll use the freeway analogy in this article.
Picture 3 very busy on ramps in Los Angeles, or Atlanta rush hour traffic. These 3 on ramps are only 20' apart from each other and have only a 100' runway before they force themselves through all 3 lanes of traffic and merge you right into the fast lane at a 90* angle. That is your stock exhaust manifold.
From there you travel 1/4 mile or so and you reach an area of the freeway that not only has painted lanes to separate traffic, but lining the lanes there are steel poles. Not only are there poles lining the lanes but the poles cause the lane to become so narrow that there is only a foot of clearance on either side of the vehicle. This is your first catalytic converter. Then you travel the length of a football field and come to another field of narrow lanes lined by steel poles, that's your second catalytic converter.
Now, it's smooth sailing for another quarter mile and you merge with an entirely new 3 lane freeway that just went through what you went through, all 6 lanes have to merge back into a 3 lane highway, this is the y pipe.
Continue on for another 1/4 mile and there is a huge brick wall right in the middle of the freeway!!! This brick wall blocks all 3 lanes! With no signs saying which way to go to get around it. Some traffic is going right, some left. But ether way you go the only option is get right up to the wall, stop, then go around using the left or right shoulder of the freeway. Now go around 2 more brick walls right in the way of the lanes!! This would best describe your muffler.Continue down some sweeping long curves with very little obstruction and exit the freeway into oblivion, this would be your tailpipe.
What does all of this tell you? What part of this freeway would you fix first? Obviously the brick walls in the middle of the freeway are causing the most back up in the entire system. For goodness sake, you have to completely stop and in no certain order go around the walls before you can continue on to the long sweeping curve that is your tailpipe. You see you want scavenging not nessarily always just back pressure. Just my .02 cents
rubbertoe
New member
:driving:i just put a JBA exhaust on mine .install was straight forward ,and in my opinion on the easy side .hardest part for me was getting the stocker off ,since the bolts at the back were frozen i ended up cutting it off .so far i am enjoying the new system not to loud but you defiantly know its there .best part of it was,it shipped to my door .....http://deephousepage.com/smilies/driving.gif
Attachments
TheeMikeB
New member
I"ve never heard of BAmufflers or Dirty Deeds Industries. How much did you pay for your muffler?
That's a nice little analogy, and it does describe the chambered Flowmaster mufflers.
The 18" Magnaflow #11255 is a straight through perforated stainless steel tube design. You can look right through it from one end to the other. It's a one-piece tube running from end-to-end, and looks to be much more durable than their longer case mufflers.
T4R2014
Elite Member
Can you make some videos of the exhaust sound?
Swimmerboy2112
New member
Very interesting. This exhaust is pretty cheap and it's stainless plus JBA is a reputable brand. Hmm. I would like more info on this!
I have the Borla cat back linked above and have had it since the summer. It's great. Really solid construction, nice sound but not too intrusive when you're cruising. Full stainless and it's one of the best aftermarket parts I've bought. It literally installed in 30 mins (longer to get the old one off!)
Highly recommended.
dirtbike250x
New member
I would like more info on this system also if possible. How long have you had it on, and how is it holding up. A sound clip would be awesome too. Thanks, haven't found to many other people running it.
The price of the full system is reasonable compared to the Borla. I know the JBA uses inferior stainless compared to the Borla (409 vs 304) but on a truck that is used off road, with a chance of damage, I don't see a need for the 304, unless the stainless of this system does not hold up to the elements.
Bandit Runner
Senior Member
I like my Magnaflow 18", FWIW. Not too loud, but has a nice little rumble.
samdajellybeenie14
New member
Why not this: 5vzfe swapped mr2 at watkins glen international race way: Session 1 - YouTube
Yes, I know it's not a 4runner but the engine's out of a '97 (with the stock pcv valve according to the description).
I think it's a great sound. As sacrilegious as this sounds, I don't really like the sound of the 3.4 and I was shocked by how good this setup sounds. I don't know how much the Yam R1 mufflers would cut down the power though...
Yes, I know it's not a 4runner but the engine's out of a '97 (with the stock pcv valve according to the description).
I think it's a great sound. As sacrilegious as this sounds, I don't really like the sound of the 3.4 and I was shocked by how good this setup sounds. I don't know how much the Yam R1 mufflers would cut down the power though...
fightman80
New member
Alright! I ordered the 18" Magnaflow part# 11255, and will be having it installed next Friday at 9am! 
Can't freakin wait! Another mod for my Mean Green!
Can't freakin wait! Another mod for my Mean Green!montana_jeepn
New member
I haven't had a Flowmaster exhaust simply because everyone around me has one and I wanted something different. I do have a very healthy sounding Borla ProXS dual outlet muffler that just sounds awesome. Its got a nice deep aggressive sounding tone thats really not that loud till you step on it, then it can get a little loud. I think it sounds better than most Flowmasters. My opinion might be considered biased tho.
Looks sharp. What model is this? I could only find the single side exit.
AlphaEcho2k5
New member
Alright! I ordered the 18" Magnaflow part# 11255, and will be having it installed next Friday at 9am!
I have the same model and I've been happy with it thus far.
fun_runner
New member
All custom piping after the muffler to the stainless 2.5" tips.
NoleRunner
New member
Alright! I ordered the 18" Magnaflow part# 11255, and will be having it installed next Friday at 9am!
Nice choice! Let's us know how you like it. I love mine, hope you like yours just the same.
LittleCaesar
New member
I was hoping for something louder, that way when you hit another snowbank, just put Mean Green in N, rev it high, and someone is bound to hear ya and come running.
All kidding aside, it should be fine.
All kidding aside, it should be fine.
fightman80
New member
A loud exhaust wouldn't have helped me... lol! I was stranded 60 km's away from civilization in one direction, and 50km's in the other.... 
piecesparts
New member
With all of the discussion on sound, did any of you notice any improvement on acceleration or all around driving? The principal of being able to easily move air in and exhaust out also works on the theory that a good exhaust will vacuum the cylinders out to allow them to pull in a clean charge of fuel laden air.
