View Poll Results: What is the best exhaust system for the 4th gen?
TRD 55 18.46%
TRD
55 18.46%
Borla 96 32.21%
Borla
96 32.21%
Magnaflow 75 25.17%
Magnaflow
75 25.17%
Gibson 26 8.72%
Gibson
26 8.72%
Custom or other 46 15.44%
Custom or other
46 15.44%
Voters: 298. You may not vote on this poll

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Old 03-14-2014, 01:04 AM #31
dodder dodder is offline
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Quote:
Originally Posted by urbangeologist View Post
I just installed a Gibson Cat Back exhaust on my 04 SR5. It was easy to install, sounds great and cost 300 off of amazon. All in all a great value for the time and money spent.
Second for the Gibson exhaust. I have it on my v8 and it rocks. Has some growl under throttle but not too loud on the highway.
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Old 05-08-2014, 06:25 PM #32
91'4bee 91'4bee is offline
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Straight pipes off the Doug Thorley LT headers out the back! Loud as hell and sounds great!
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Last edited by 91'4bee; 05-10-2015 at 11:44 PM.
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Old 09-23-2015, 02:47 PM #33
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Yore arse hot yet?

Quote:
Originally Posted by jmc8387 View Post
None of the above. Stock is best! Loud exhausts are not refined. They belong on a sports car, not an SUV.
Fine to keep stock muffler sound, but Its a known fact your stock exhaust restricts too much creating heat to be held inside the engine. EPA smog laws have driven car makers to restict heat/fumes so bad over the yrs its greatly shortened engine life. Soon we'll need no heaters in cars as your arse will be hot from the exhaust/cats.

Its common sense that when the sounds restricted so bad the heats restricted too, so the best thing for engine life is to allow one to breath.
Remove/gut the cats regardless of muffler used is a better upgrade. Most of us can't do this over state laws yearly smog tests, so your next best thing is install high flowing cats and then your mufflers sound of choice.

As far as true performance/air flow any straight through glass pack flows higher cfm ratings than any turbo/chambered style and yes even better than flowmasters.
Flowmaster in the day heavily advertised they were the best performing "Turbo" muffler but most took that as the "best performing muffler"....Big difference, they do make straight thru race mufflers (pro series). Why? Because they flow better!!
Drone or sound resonating throughout the vehicle is the downside of all the highest flowing mufflers so choose wisely if you hate that inside hum on the hwy.

Now' myself I drove a 425hp 69 Dodge Superbee with 3" exhaust /glass packs daily for over a decade I can handle any drone sounds thrown my way but most like my wife cant. I like a deeper rumble bass sound, never liked the wisper sound of high restricted stock mufflers or high raspy chambered /turbos at all.

Today' I like it deep sounding but just loud enough so I dont have to turn off my engine to order in a drive through. After I pull up close and yell pretty loud though when I order so I manage...lol
Not sure if I'm getting older or lazier but I've changed because before it just didn't matter?

I LIKE THIS:
Only says "new cat" not high flow but may be? I like this turbo mufflers sound, not a duel but nice & cheap deeper sound.

https://www.youtube.com/watch?v=CrAw...A3rxWVT-5DeDLg


However' all that said, I WANT THIS...lol
https://www.youtube.com/watch?v=hPy0KPa9oFc


*

Last edited by 123GO; 01-29-2016 at 01:44 PM. Reason: Add youtube clip, Flowmaster 44 duels on 4Runner
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Old 01-07-2016, 09:30 PM #34
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Just took my dual borla exhaust off. Too rumbly on the highway
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Old 05-10-2016, 11:12 PM #35
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What headers are recommended? I wanna keep the cat just to retain the ecu specs

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Old 02-06-2017, 11:41 PM #36
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Low idle after muffler install

I got a flowmaster super 10 installed and I noticed the idle is at about 600. Before the install it was about 1000. Is this normal?
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Old 09-22-2017, 01:04 AM #37
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Home
sounds good, durable construction
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Old 02-01-2019, 12:21 AM #38
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Borla Pro XS

Late post, but I'm sure more people will stumble upon this while researching exhaust.

Put the Borla Pro XS part #40664 19 in muffler on my 99 4Runner. Stock exhaust pipe size, 3.4 liter engine.

Very quiet, just a hint of rumble at idle, a slight resonance when passing through 1900 rpm, but it is almost unnoticeable. Overall very satisfied, really pleasant to drive around in my 4Runner now. $100 (for the stainless) at Summit racing and $75 for a local shop to weld on.
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Old 09-15-2020, 03:38 PM #39
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How to choose the right exhaust?
First of all - one of the main criteria that ordinary motorists who want to buy exhaust rely on is price. Here, not everything is as straightforward as it might seem right away ... What do you think - a high-quality part from a well-known manufacturer, which should be made of high-quality metal - how can it be suspiciously cheap? Another important factor that affects the quality of the muffler is the internal structure. I found the F150 EcoBoost exhaust and I want to say that I am satisfied with my car too, I will continue the story, the external similarity of mufflers from different manufacturers does not mean that they are the same in design. Exhausts may vary:
Quality internal perforated tubes;
Internal volume;
The presence or absence of a two-layer body;
Heat resistant internal sound-absorbing filler, and the like.

Last edited by Papilokanoma; 09-23-2020 at 04:40 AM.
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