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Most of the videos of aFe alxe-backs are of the muffler delete version. Mine is the one with muffler (very mild increase in volume). If you want to know how it sounds, here's a sound clip
 

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Seems reasonable for a daily driver. The deleted version would probably be overbearing after a while. Any other air system upgrades like an intake or only the axle back?
 

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Discussion Starter #3
Seems reasonable for a daily driver. The deleted version would probably be overbearing after a while. Any other air system upgrades like an intake or only the axle back?
Exactly. My previous car (2018 Subaru BRZ) was too loud for my taste. Great for shorter, fun drives, but on longer ones it would get tiring. This setup is much milder. No other air mods. Not looking for any gains at the moment.. just wanted my car to be audible (stock is near silent inside until the RPMs really climb)
 

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Yeah this sounds awesome! Someone posted today to the 2018+ Elantra Gt/I30 Facebook group of theirs newly installed and ready to good. Wish they had this when I bought my axle back. The axle back is too aggressive and loud for daily driving.
 

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Thanks for the report and sound clip. Looks like a reasonable sound increase I might consider. Don't want to sound to obnoxious like the neighbor boy Honduh.....
 

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2020 Elantra GT N Line Fluid Metal 6MT
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I have the aFe axle-back with the muffler delete. I actually enjoy the more pronounced exhaust note and it has note been an issue for me on semi long drives. Noticed on my BIO that I put something different as exhaust modification but I could not change as I notice after I hit save. Anyway, I like mine a lot.
 

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2019 Elantra GT N-Line w/Tech package
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Thanks for posting this. There was no way I was going to go for the full muffler-delete, but given aFe's big Black Friday discounts, the muffler version was reasonably priced and I pulled the trigger.

How did you find the install parts (clamps, etc.) to be in quality, and how'd the replacement process go for you?
 

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Does anyone know what a catted downpipe on stock catback would sound like?
Any sound clips you could link me too would be greatly appreciated.
I like the induction sound on these cars not a big fan of loud exhaust, but I hear a downpipe can help increase performance.
 

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Does anyone know what a catted downpipe on stock catback would sound like?
Any sound clips you could link me too would be greatly appreciated.
I like the induction sound on these cars not a big fan of loud exhaust, but I hear a downpipe can help increase performance.
.A catted downpipe shouldn't be that loud with the stock exhaust. It will only net you 10 to 15HP at most.
I would only consider this if I was swapping to a bigger turbo. Then it would be worth the effort. On a stock turbo car not worth it imho.
 

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10-15 hp is a decent gain and installing a downpipe will future proof your build in case you're wanting a tune later on. I would not run a tune with the stock downpipe. It's a reasonable upgrade and a catted downpipe will still sound a lot better coupled with the stock exhaust.
 

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10-15 hp is a decent gain and installing a downpipe will future proof your build in case you're wanting a tune later on. I would not run a tune with the stock downpipe. It's a reasonable upgrade and a catted downpipe will still sound a lot better coupled with the stock exhaust.
Depends on what version he gets (catted or not catted) whether or not he gets a full 15 HP gain which is not much. I would get a piggyback or tune (If you have the cash). You will get the most performance for your money. DP install on Elantra's are a pain to install and over $400 unless you buy one used.
 

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The downpipe from SXTH claims 15hp and 12tq and is catted. The ones that aren't catted have claims up to 25hp. Both change the sound of your vehicle in a very noticeable way. I returned my piggyback and got a catless downpipe so I cannot agree to your sentiment of better performance for the money. Also, since there's no future proofing with a piggyback you'll end up spending more money in the long run if better stable performance is your goal anyway.
 

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Net gains advertised by vendors are always taken under optimum conditions. I am sure sound quality changes as installing headers would on NA cars. For me the piggyback on my car is perfect. I live in California and I am also just leasing my vehicle. Makes no sense in my situation to consider lofty performance goals. I gained what I considered fun performance increases and have not needed to modify
my exhaust. I wish those on better performance paths the best of luck. In my case I have done just fine for the amount of money I have spent so far. I went down the performance path with my 2006 Evo RS. I know with this car I can not achieve the level of performance I attained with the Evo so I won't even try. I have learned from the Evo platform where to achieve the most gains on a turbo car reasonably. For all you out there enjoy your adventure. I am sure SXTH will sell you anything you want Lol. Enjoy
 

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If you read what I posted I said I bought a catless pipe which SXTH doesn't provide. I gained 22hp on the dyno compared to the 10, 14 and 16 gains from my piggyback.

If you put a piggyback on your evo too I feel sorry for it. Also, your ecu logs boost levels so if you go over what its designed for you'll have a surprise at the end of your lease. While we don't have a diamond star motor(and you don't seem to have one anymore either lol) these cars will definitely benefit from putting on actual performance mods than some cheap micro processor that tricks your ecu's boost and fuel levels while not giving a shit about airflow or temperature. Also not sure why you're bashing SXTH when a lot of their parts are quality and a piggyback is anything but, seems very ironic.
 

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Woh Woh Woooh there fanboy. I didn't know you were so sensitive about your boyz. I said nothing to discredit them! You really are just starting out your mod adventure where I have already been at it for 20 years on boosted cars.
I know the limitations of the piggyback as well as the precautions to take. In fact these type of units are the first to come out until someone can crack the ECU code and get good at tuning them. My Evo was tuned on an AWD mustang dyno by one of the best in the country. Was also one of the first to run on E-85 and make 400 whp on a stock turbo. (440 whp on a dynojet) Tuning options for the Evo are light years ahead of the Hyundai even though it came out 20 years ago. I could do everything on my own laptop and not have to rely on a vendor.
The other thing is you have no clue as to what you have to deal with if you live in California. Lucky you.... but here we must consider our mods well for a street car. My Evo had a 3 in DP that I didn't change until I changed the turbo. Also had cams, ported intake and exhaust manifolds and ran 1250 cc injectors on E85. Fuel pump required upgrading. Just wait till you have to do that on a GTDI car...lol ...surprise...surprise.

Anyway I am not here to bash anyone. I have dealt with many a vendor. There aren't that many available for this platform yet so they currently have a captive audience. Good for them. I wish them well.
There will be no problems at the end of my lease as it will have taken care of better than most.
So my question is to you....Did you dyno your car with just the DP install to gain 20 hp?....Or was in conjunction with other mods tune/intake...etc.
 
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