I need opinions on my exhaust - Dodge Charger Forums
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post #1 of 7 Old 3 Days Ago Thread Starter
Mc.lovin.__
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I need opinions on my exhaust

So I have a 2016 sxt charger. I already deleted the mid muffler and end resonators. I want to delete the cats and install an x pipe (I don't know why dodge didn't just do an x pipe to begin with, smh...). What price sounds reasonable for a muffler shop to do this? If it helps, I'm located around San Antonio, TX. Thanks!
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post #2 of 7 Old 3 Days Ago
GertFrobe
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Quote:
Originally Posted by Mc.lovin.__ View Post
So I have a 2016 sxt charger. I already deleted the mid muffler and end resonators. I want to delete the cats and install an x pipe (I don't know why dodge didn't just do an x pipe to begin with, smh...). What price sounds reasonable for a muffler shop to do this? If it helps, I'm located around San Antonio, TX. Thanks!
Are you sure there is not already an X-pipe on the exhaust system? I don't have any specific info saying there is an x-pipe on the 2015+ models, but the 2011-2014 models had one, and I cannot see them removing that from the exhaust system design as a part of the 2015+ refresh...maybe they did, but it would seem counterproductive to do so,...

Anyway, if it has an x-pipe, it will be behind the cats and ahead of the mufflers, somewhere in the mid-forward section of the car, right before the tunnel in the underside begins at about mid car. Jack it up and crawl under there a little ways, you should be able to tell if its got an x-pipe once and for all. Dollars'll getcha donuts that it does have one already.

To your question about how much it will cost to have an exhaust shop remove your cats, I am going to say $0.00 most likely.

AFAIK, it would be illegal for them to remove the cats on a car driven daily on public roads (and thereby subject to state inspections every year) without replacing them with a new set of [functioning] cats. And not only would they be breaking the law, the laws they would be running afoul of are federal in nature. That means big fines and massive headaches for being found in violation of them.

Translation: no one is going to even entertain the idea of removing the cats without a plan to replace them at the same time.

But even if you could have them removed, it wouldn't provide you much, if any, of a performance gain in the car's operation. Not to mention the PCM would notice them being gone, throw several DTCs, and illuminate the Check Engine Light until the missing data points were reinstated or turned off (not a simple task).

That is important to know because the PCM's operation of the engine will never enter closed loop mode as long as the CEL is on. Which means it'll constantly be using an air/fuel mixture where the proper ratio is merely guessed at (open loop mode) instead of calculated and recalculated on the fly a hundred times a second like it should be (closed loop mode).

Translation: You will be down on performance across the board, down on MPGs in both city and hiway, and spewing more pollution in the surrounding environment than necessary if you have the cats removed.

Extra pollution (more than necessary) may not bother some folks, but if you live in a large city like I do, that buildup of VOCs and the resulting ozone on hot, muggy days can be seen and felt. And it ain't anything you will enjoy, I assure you. Not to mention the affects it has on your breathing if you have asthma or something similar...

2012 Charger R/T with Pursuit pkg. (2018 - ?)
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2010 Challenger Rallye Redline (2015 - 2018)
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post #3 of 7 Old 2 Days Ago Thread Starter
Mc.lovin.__
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So the exhaust after the cats goes into a y pipe then splits into 2 again. I'll attach a picture for reference. A muffler shop said about $250 for the x pipe after I said I could supply the actual x piece. As for the cats, I've had a the same shop quote me $80 for each but that would throw the codes. I've seen that you can weld on O2 bungs that trick the sensors but I'm skeptical as how well that works (if it does). I'm just looking for a louder sounding exhaust, I'm a v6 and don't expect much performance gains to start...
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Last edited by Mc.lovin.__; 2 Days Ago at 06:42 PM.
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post #4 of 7 Old 2 Days Ago
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The stock SE /SXT exhaust is a horrid (but quiet) mess consisting of a the down pipes merging in a Y, a short single pipe section, single muffler, another short single pipe section that splits at a "T" going into the resonators.

Since you have already removed it anything a local muffler shop tries to cobble together will just end up sounding like $HIZZ (believe me, I had SEVEN different systems on my 2013 V6--the 3.6 drones like a PIG from 1600-2400 rpm)

The Rallye & Blacktop editions (and the 2019 GT) have a true dual exhaust that you could put on, but they are expensive ($1500) and pretty quiet too. Your best option is to put on a SOLO J pipe system for around $850, or a Borla for $1450. I use the Solo on my 2016 SXT and love it.

https://shop-solo-performance.com/en...er300-sxt.html

https://www.borla.com/products/300_c...t__140686.html
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2016 SXT Plus

Last edited by krautmaster; 2 Days Ago at 11:36 PM.
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post #5 of 7 Old 20 Hours Ago
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Will the true dual system give "real world" better MPG? My wife will be be doing 80 city / 20 highway driving going 70-75 MPH on the interstate. She likes it dead quiet so no hot rod type muffler swap.
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post #6 of 7 Old 19 Hours Ago
krautmaster
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When mine was stock (with the crappy single/split system) it got what the factory said it would 30-31 mpg. With the Solo exhaust and AFE Momentum GT Intake (with Hellcat air tube) it gets 34-36 mpg.

Just switching out the two factory systems won't help the MPG much, but the performance is better.
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post #7 of 7 Old 18 Hours Ago
GertFrobe
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Damn, they really went nuts on the 2015+ exhaust. That's more like the old 2010 and below exhaust with the Y pipe. The GT exhaust in the last pic was what I envisioned all the V6 exhaust looked like now, but I guess I was wrong.

What where they thinking?!?!

Quote:
Originally Posted by krautmaster View Post
The stock SE /SXT exhaust is a horrid (but quiet) mess consisting of a the down pipes merging in a Y, a short single pipe section, single muffler, another short single pipe section that splits at a "T" going into the resonators.

Since you have already removed it anything a local muffler shop tries to cobble together will just end up sounding like $HIZZ (believe me, I had SEVEN different systems on my 2013 V6--the 3.6 drones like a PIG from 1600-2400 rpm)

The Rallye & Blacktop editions (and the 2019 GT) have a true dual exhaust that you could put on, but they are expensive ($1500) and pretty quiet too. Your best option is to put on a SOLO J pipe system for around $850, or a Borla for $1450. I use the Solo on my 2016 SXT and love it.

https://shop-solo-performance.com/en...er300-sxt.html

https://www.borla.com/products/300_c...t__140686.html
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