Wtf Did I do to my sho? New exhaust makes my car sound like a rice burner

Go to a good muffler shop and have them put in a dual in/out muffler like the factory has somewhere in the mid pipe area, I would be that reduces it massively.
 
EcoPowerParts said:
Go to a good muffler shop and have them put in a dual in/out muffler like the factory has somewhere in the mid pipe area, I would be that reduces it massively.
Click to expand...

That was my original plan but I need to get my car stable first... and I'll be going with catted DPs... the smell and smoke is obnoxious.
 
I would personaly start off with the basics,like mentioned earlier swap the 3-bar sensors around and see if you notice any difference,also a can of maf cleaner is in order and try cleaning both of them,1)is there any oil buildup arround the throttle body?if so you could have oil inside the map sensors coming from your CAC causing your issues,2)are you using a full synthetic oil? and as mentioned a while back it is important to install new gaskets X4 FOR A SECURE LEAK proof system,the exhaust system only builds up to a 500 degree level lol,after a couple hundred mile due to the heat expansion,re-torque all the bolts,if a leak is detected it will emit improper AFR readings causing your symptoms,a(ALMOST DONE)like mentioned a while back damage to the 02 sensors upon install,(TWISTED)wiring can lead to your issues as well,all the above mentioned should be installed with caution,because of the fragile components,personaly would try to rule out the above mentioned,ESPECIALLY IF YOUR ISSUES STARTED RIGHT AFTER THE DP AND EXHAUST INSTALL,just my 2 cent. Z
 
One more update for people.

The muffler place called (Mufflers and Pipes in Waukesha WI is hands down the best muffler place in the area), and they said that everything was installed correctly from the first shop. They checked the gaskets and the other parts, and everything was good. Apparently the Corsa + stainless works is a bad combination.

They also straightened the exhaust so that the rear tips align properly...

The factory DPs are back on for now.

With that being stated -- I'll be selling my stainless works 2.5" downpipes once i can take pictures of their current condition (600 miles on them... I'd expect them to be rainbowed). I'll give someone a killer deal on the catless downpipes if anyone is interested. You'll see a for sale listing probably today.

Let me know. PM me.
 
I'm sorry but that sounds goofy and terrible...its sounds just like when people put duals on old ford rangers or v6 mustangs and camaros..

It's just like having an ugly baby..you force yourself to love it....you can't stand the thought of just coming to the realization that you just wasted a grand lol so you say it sounds sweet lol
 
On second though I'm not going to waste my time. Trolls are everywhere these days.

Edited post.

Sent from my iPhone using Tapatalk
 
jkeblaitis said:
https://youtu.be/-tAiyCbteeM
Here is my 2013 SHO with the black tip Corsa exhaust and stock downpipes
Click to expand...
I think it sounds as good as any that I've listened to. No I haven't heard any that sound like a V8, and it's a little too pronounced for my DD, but it's not raspy and it burbles nicely when cruising around. Not bad!
 
SHOnUup said:
It's not the tune?

What a shame that's the go to fix for some.

Rich
Click to expand...

Rich -- It is the tune. It was also the down pipes. The rasp hands down were the down pipes. The tune could never adjust the the stainless works down pipes. NO matter what tune files I selected, it was still unhappy....  I still think I was hitting the max boost capabilities of the turbos at WOT because of the lack of back pressure or the 93 3 bar tune V8 tune is not compatible with the decrease in back pressure.

Either way -- the car is happy this morning on the drive in and I did do a WOT after the car was warm and I had NO sputter. I"ll be trying the 93 3 bar tune this week to see if it plays nicely with my revised setup.
 
Gotcha...worst downpipes on the market get taken off and it's fine now. But the tune is suppose to adjust to them? I'm confused.

Rich

 
SHOnUup said:
Gotcha...worst downpipes on the market get taken off and it's fine now. But the tune is suppose to adjust to them? I'm confused.

Rich
Click to expand...

Yes. I don't think the down pipes are made with bad quality. If you look at my post for the down pipes they are very well built. The Livernois catless downpipes have a similar level of rasp... I'm convinced that the studder problem exists with the tune, or maxing out the capabilities of the stock turbo or fuel delivery system on the car. The tune controls the engine's performance. If the car is studdering -- there is something wrong with the tune / adaptive learning.

The plugs, the fuel, the intake, the map sensor, the 02 sensors are ALL the same on the car and its working fine now with the increased back pressure.
 
Seems there'd be a line of people complaining then wouldn't you think. I'm pretty sure you're not the first one to put downpipes on. Maybe more people can chime in on their experience with the V series tunes and downpipes.

Rich

 
I hope to god this is a permanent fix to say the least even after ten pages,another note to mention,did you ever wonder why there the cheapest DP around catted or not,because my first set were stage 3 catted DP and set codes up like a christmas tree,have the catted DP from EPP,Mike.B for well over a year and no codes and great overall quality as expected. Z
 
I would schedule an appt with your service advisor especially now that you have your original DP on and take care of any recalls if not done already,another thought is you might need to re-program your PCM to the latest calibration software,(update),hope this helps any. Z
 
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