I am about to pull the trigger on the Cargraphic Super sound loud exhaust. I have read that most folks are very happy with it. Anyone disappointed? Anyone switch between EP1 and the Cargraphic. Would love to hear any personal experiences. I have an 07 TT that is new to me, and that is basically all stock. Thought I would start with the exhaust and move from there. Realize there are lots of posts on exhausts - wanted to just see if anyone had concerns or if there is anything that I should be concerned about. The alternative would likely be the EP1, but a little more costly.

 

You can't go wrong with either. I have the Cargraphic on my car and I love it. If I had to do it again, I'd go with EP as that is the preferred brand for my tuner, but he had no issues with the Cargraphic.

 

Had the Cargraphic loud, after a while the cats were not doing their job and started triggering post cat effeciency codes. I had to turn the post cat o2 sensors off to fix the problem. I eventually went with Europipe and have not looked back.

 

If I had to choose between CG and EP I would choose EP all day long!

 

Cargraphics has a nice Refined Motorsport Sound. Where are you getting yours from? We are the North American Cargraphics Distributor, havent had any request for a Quote from any of the Dealers. PM me i can price one out for you.

 

http://www.phoenixexhausts.co.uk/


This is who makes CG exhausts BTW

 

based off of what? power gains? build quality? sound?

 

All of what you just mentioned, I mean look at the thing it's like a work of art for one, two it sounds the bllx and three it's the only am exhaust to run 100cel cats without any dash light issues and the fourth is stef&herman are amazing guys! If you want another choice I would recommend FVD WHICH IS MADE BY M-M in Germany who are great too which is what I have and if so speak to Rhonda who will hook you up!

 

Zook - thanks for the message. Unfortunately, I am too new to PM. Feel free to PM or I will shoot you an email. I am in SoCal as an fyi. Thanks!

 

Thanks everyone. Really appreciate the perspectives. Little concerned about the sensor issue. Question for those who have some experience with the two -- Is the CG Loud much louder/better sounding than the EP1? I have not heard either in person but have searched the many videos here.

Really appreciate everyone's responses.

 

The cargraphic sounded fantastic. Vs. the EP1 I'd say its a touch louder, not in a bad way. I would only recommend the EP1, it sounds great, build quality is amazing and it runs larger converters and is designed to never trigger post cat CEL's. Trust me, those suck.

 

Can you send me a Email, ill shoot you a price

As for Cat Converters all the top exhaust manufacture run the same brand Cats made by HCJ in Germany. So saying ones better than the other is not really all the true

 

I think we should be cautious in choosing an exhaust based on how "well" it obliterates the Check Engine Light. There are 2 situations that could trigger this light:
1. The cat converter is bad.
2. The ECU tune is bad and is running too rich or too lean.

I do agree that in the first situation, you want to get rid of the exhaust. With 2, it has never been cleared to me what the correct answer is. The ECU depends on information from both pre cat and post cat O2 sensors and alters fuel mixture accordingly; is it then a good idea to design an exhaust that would never trigger an alarm? How do you know whatever method that is used has not altered the information that is fed to the ECU?

In short, the post cat sensor is there to monitor exhaust gas, true, but more importantly, the O2 sensors are actually feeding information to the ECU to allow it to run properly, is it a good idwea to alter its function or its alarm? Is it ok to get rid of *all* alarms, including the real one that is telling you the ECU programming is not running correctly?It's a complicated issue that I don't profess to know the answer, just more questions. There are many discussions on this topic, but a basic one is below from "How Stuffs Work" LOL:

>>>>>>>>>>>>>>>
­Th­e oxygen sensor is positioned in the exhaust pipe and can detect rich and lean mixtures. The mechanism in most sensors involves a chemical reaction that generates a voltage (see the patents below for details). The engine's computer looks at the voltage to determine if the mixture is rich or lean, and adjusts the amount of fuel entering the engine accordingly.
The reason why the engine needs the oxygen sensor is because the amount of oxygen that the engine can pull in depends on all sorts of things, such as the altitude, the temperature of the air, the temperature of the engine, the barometric pressure, the load on the engine, etc.
When the oxygen sensor fails, the computer can no longer sense the air/fuel ratio, so it ends up guessing. Your car performs poorly and uses more fuel than it needs to.
>>>>>>>>>>>>>>>

 

They are called HJS for a start and Europipe use Emitec cats, so not all top companies use the same!

 

sorry you are correct its "HJS", im so used to typing "HJC" Helmets lols.