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post #1 of 17 Old September 20th, 2019, 02:38 PM Thread Starter
 
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Aftermarket Exhaust

What is the opinion of aftermarket exhaust systems? I have heard the stock exhaust system is well engineered and hard to beat and some aftermarket systems can cause a loss of torque until you add a tuner. I have a 2019 Turbo S Velocity and am considering the Trinity Racing Stage 5 complete system. Thanks!
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post #2 of 17 Old September 20th, 2019, 03:16 PM
 
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Re: Aftermarket Exhaust

Subscribed. I'm interested too. I'm still stock

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post #3 of 17 Old September 20th, 2019, 07:04 PM
 
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Re: Aftermarket Exhaust

I went with the mbrp sport series single for my turbo s looks factory but lighter and no cat

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Last edited by kkirk; September 21st, 2019 at 04:22 AM.
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post #4 of 17 Old September 21st, 2019, 03:28 AM
 
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Re: Aftermarket Exhaust

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Originally Posted by kkirk View Post
I went with the mbrp sport series single for my Polaris rzr turbo s looks factory but lighter and no cat

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^ I have to agree. If changing my exhaust was a priority I would go this route. The sheer amount of money you spend on an exhaust you will never see that back in actual gains. 1-3whp on a turbo over stock is not worth the kind of money they are asking for a dual system unless you want a loud system or like the looks.

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post #5 of 17 Old September 21st, 2019, 04:44 AM
 
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Re: Aftermarket Exhaust

I would actually like quieter without performance loss. I think this has been discussed before, but being lazy and jumping in to pose the question. Anyone know if there’s a unicorn out there?


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post #6 of 17 Old September 21st, 2019, 05:41 AM
 
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I used a magnaflow similar in size to stock and made my own. It is several decibels quieter at idle and low rpm, but is definitely a little louder when you really get into it at higher rpm's. I haven't tested the decibels at high rpm to see how much.
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post #7 of 17 Old September 21st, 2019, 06:55 AM
 
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post #8 of 17 Old September 21st, 2019, 06:57 AM
 
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Talking Re: Aftermarket Exhaust




Shawn
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post #9 of 17 Old September 21st, 2019, 09:51 AM
 
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HMF has some super nice options for the turbo S. You can tell by looking at them the craftsmanship is there. Check out the turbo back pipe, its beautiful. They offer quite a few different options even a quiet version
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post #10 of 17 Old September 21st, 2019, 05:05 PM
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Re: Aftermarket Exhaust

Here is another opinion. It is just my opinion. This, obviously would only apply to racing vehicles, since tampering with emissions related parts is a violation of federal law, and I know only those of us who are racing in sanctioned events would even consider that.

The biggest advantage to be be gained by removing the stock muffler is to remove the cat.
The cat creates much higher exhaust gas temps, which is bad for your turbo and everything upstream from it. Many of these aftermarket mufflers are a joke, offshore cheapo mufflers with a cool tip put on them and sold for a whole lot more than they are worth. If you want to keep the sound down, and are not worried about doing permanent mods to the stock muffler, unbolt it, cut off the inlet side pipe at the muffler, and remove the cat, then reweld the pipe and bolt it back on. (For racing only, ya know)
Only major engine builds are going to benefit from a header back system, a bolt on muffler after the collector is going to fine for 95% of us.
Don't expect a huge seat of the pants boost in power, but your engine and turbo will thank you.
If you decide to buy an aftermarket muffler buy a good one.
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post #11 of 17 Old September 22nd, 2019, 01:53 PM
 
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Isn’t tuning required as well for all exhausts? Everytime I look at exhausts they all say a tune is required. And that’s another several hundred. I’m keeping mine stock as I have kids who ride in the backseat.
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post #12 of 17 Old September 23rd, 2019, 03:56 AM
 
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Re: Aftermarket Exhaust

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Originally Posted by JoshDomo View Post
Isn’t tuning required as well for all exhausts? Everytime I look at exhausts they all say a tune is required. And that’s another several hundred. I’m keeping mine stock as I have kids who ride in the backseat.
In a vehicle equipped with an oxygen sensor tuning is not required for an exhaust system. With that said a tuner may be able to squeeze sightly more power out of a tune with an aftermarket exhaust since it probably won't make as much heat as the factory exhaust would.

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post #13 of 17 Old September 24th, 2019, 12:09 PM
 
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Re: Aftermarket Exhaust

I have HMF exhaust on both my 2018 Turbos and absolutely love it. Great system, it looks great, sounds great and the cars run cooler.
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post #14 of 17 Old September 24th, 2019, 04:25 PM
 
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I'm running the GGB xt exhaust on my 19 turbo xp4. Sounds great, similar sound levels to stock, and still has the low end grunt unlike the other exhaust I had. The fit and finish are spot on also. Hard to beat for $450.

Last edited by Turbo_Kyle; September 24th, 2019 at 04:34 PM.
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post #15 of 17 Old September 24th, 2019, 04:36 PM
 
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Re: Aftermarket Exhaust

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