Hey guys. I have a 2016 sti, and am planning on installing a turbo back exhaust. Ideally I would install a catted DP and keep the cat back stock, as I'm happy with the sound.. But I don't want the restriction of the stock exhaust. I know it will be louder, but I want to keep the noise increase to a minimum, and definitely no drone on the hwy. Recommendations? TY.
Quiet -- stock like sound level -- turbo back exhaust
Tyrone Shoelaces
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It didn't with mine unfortunately. I was getting drone above 3K rpm which is where I tend to hover mostly on my drives.
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OP, just keep the stock catback and go with an aftermarket catted DP. It is still going to be louder than stock with this setup but there is no exhaust out there that I know of that is as quiet as the stock exhaust.
I'm personally running the Invidia Q300 (still have the stock downpipe) because in my research it was the most quiet aftermarket exhaust I could find. I was just tired of looking at how ugly the stock mufflers/exhaust was and the Q300 hasn't disappointed in any way. It looks great, is relatively quiet, and a great value IMO (I was about to get mine for $723 shipped on Amazon). I'm sure when I go with an Invidia catted downpipe it will be even louder but right now it isn't obnoxious, doesn't drone, and I can easily carry on a conversation in my car (the car itself is still louder than the actual exhaust).
I'm personally running the Invidia Q300 (still have the stock downpipe) because in my research it was the most quiet aftermarket exhaust I could find. I was just tired of looking at how ugly the stock mufflers/exhaust was and the Q300 hasn't disappointed in any way. It looks great, is relatively quiet, and a great value IMO (I was about to get mine for $723 shipped on Amazon). I'm sure when I go with an Invidia catted downpipe it will be even louder but right now it isn't obnoxious, doesn't drone, and I can easily carry on a conversation in my car (the car itself is still louder than the actual exhaust).
So you put a downpipe on and paired it with the COBB exhaust and didn't like it. OP wants a quiet stock like exhaust and you confirmed it is quiet up top, so that in turn gives the OP what he's looking for up top. Mix that in with the stock DP the OP is still on wouldn't that give him exactly what he's looking for??
it is not quiet when trying to be quiet. lol. It's absolutely horrible driving around, especially on the highway. All you heard was a low frequency bass note.
It was flat out embarrassing to have anyone in the car. I had never been bothered by such an annoying exhaust.
It was flat out embarrassing to have anyone in the car. I had never been bothered by such an annoying exhaust.
with ELH, totally different. The Cobb sounds decent when you go ELH, although Miltek is nicer and quieter.
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Sorry I wan't clear.
What do you think of the Corsa? I am looking at it and my complaint about the STI/P performance exhaust is the same as yours about the Cobb.
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Thanks all for your opinions. I'm thinking a catted dp with the stock cat back is the way to go after all.
It's awesome, but don't be fooled, with a DP, there is noise. It is not drone noise per say, but exhaust noise at all times, and noticeable when on the highway.
At least it is not boomy or bassy.
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was your setup with the turboback or just catback ? I'm planning on just getting cobb catback, hoping for no drone
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Here is a video of my car I made last year. I had posted it somewhere in the forum, but can't find it.
Stock muffler
Stock Muffler - YouTube
Nameless 5" muffler
5 in NP Muffler - YouTube
Description of the other components are in the video.
Stock muffler
Stock Muffler - YouTube
Nameless 5" muffler
5 in NP Muffler - YouTube
Description of the other components are in the video.
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Update.. I installed the downpipe with the stock cat back. It is noticeably louder but not obnoxious. So far I'm happy with it.
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Now if you put equal length headers on, it will be as quiet as stock again, if not quieter.
Check out mine with the new Grimmspeed resonated exhaust with a catted Grimmspeed downpipe. This is exactly the sound I was going for. It's not loud at all.
https://youtu.be/7lRaNh6MFa0
https://youtu.be/7lRaNh6MFa0
No! I had ELH on my stock catback with Invidia catted downpipe, and it added quite a bit of sound, especially from 2-3k.
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Haha there seem to be such mixed opinions. The absolutes make sense (Q300 is quiet / No it's not!!), but the ones with relativity are hard to grasp (you would think everyone would agree that a certain exhaust is either louder or quieter than stock etc.)
Any advice from this crowd for people with the SPT? I like the SPT overall. I would be bugged a lot more by the supposed drone if the car itself wasn't loud as hell at highway speeds anyway. Wind noise is moderate, but tire noise is horrible on anything but brand new tires. But ultimately down the road I'm looking at a downpipe (catted Invidia or Cobb most likely) as well as ELH. Honestly I already paid so much for the SPT (yes I wanted it, but it wouldn't have mattered b.c it came on the car) I wouldn't mind spending $1000+ on something besides another catback. I don't want something loud, I just want a nice sound (as others mentioned, the SPT really only bugs me that it's so loud on cold idle and when trying to creep quietly through the neighborhood).
Any advice from this crowd for people with the SPT? I like the SPT overall. I would be bugged a lot more by the supposed drone if the car itself wasn't loud as hell at highway speeds anyway. Wind noise is moderate, but tire noise is horrible on anything but brand new tires. But ultimately down the road I'm looking at a downpipe (catted Invidia or Cobb most likely) as well as ELH. Honestly I already paid so much for the SPT (yes I wanted it, but it wouldn't have mattered b.c it came on the car) I wouldn't mind spending $1000+ on something besides another catback. I don't want something loud, I just want a nice sound (as others mentioned, the SPT really only bugs me that it's so loud on cold idle and when trying to creep quietly through the neighborhood).
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Well, I guess the brands matter then because mine is noticeably quieter everywhere compared to stock. I have a Grimmspeed limited catted DP and aFe ELH with the stock catback. I ran just the DP for a while and it was a little louder than stock, but the headers quieted it back down.
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I had the SPT and absolutely hated the droning. So I replaced it with the Nameless mufflerless catback, which sounds epic and somehow got rid of the drone, but there's plenty of volume. If I had to do it again, I would've gone with the 5-inch mufflers to quiet the volume down. Seriously, the Nameless made me regret going through 2 Subarus with the SPT.
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Your build quality sucks ass? Weird. Mine looked better than my Corsa and SPT :/
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Lucky you.
Did the welds on your Milltek also look like these? These welds aren't fitting for a $3600 TB system. Plus, I also had fitment issues. I ended up needing to customize the exhaust hangers to get them to fit correctly.
![Image]()
![Image]()
Did the welds on your Milltek also look like these? These welds aren't fitting for a $3600 TB system. Plus, I also had fitment issues. I ended up needing to customize the exhaust hangers to get them to fit correctly.
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