Quote:
Originally Posted by Rralliart09
Mostly all correct sir and thank you for the very well written and thought out reply.
Here are the two things where I'll try and clairify. On the cat, my car has almost 70k miles and I just got her a month and a half ago so I'm wanting to replace it before it ever becomes an issue. Also I told him I wanted to go with a metal core. From all the reading I've been doing the factory cat is the biggest restriction on our cars and replacing it with an HFC gives the biggest gains in both HP and spool. He's getting the proper one with the factory O2 mounted in the center of the cat. Here's the website of the shop I'm using. He does VERY good work. http://www.clantonmuffler.com
For the Cobb vs GST I don't feel comfortable enough with using the GST map mainly because I can't even get the program to download. I can spin wrenches all day and do understand the theory behind tuning but I don't want to risk frying my car. The Cobb is well tested and I've not read about any negitives with using them. Also I can run the base map until I'm able to get a custom tune and I won't have to worry about the drive to Atlanta to get it done. Does that make sense? I never feel like my posts come across they way I mean them to lol. |
O.k Did you know that when a cat gets old and dealership wants to replace it. It is because the guts of the cat have basically been heated up and cooled down so many times the metal fatigues and corrodes so bad that the back pressure of the exhaust starts blowing bits of the core out thus turning it into a high flow cat over time because like a river wearing away the soil and bedrock it erodes all restrictive parts first creating better flow. Old cat = Red Neck high flow cat.
Or Match the High flow cat from the same name brand as the cat back exhaust to complete the install. I think it was implied in my above post that most after market Exhausts for our car is 3". Think about going ceramic instead of steel mesh since you don't plan on any big horsepower. This would at least give you a partially functioning cat as far as looking like stock to pass inspections and would help a little with emissions etc.
Either way you don't sound like the type of person who is going to like seeing a check engine light staring back at them on an almost daily basis. Before everybody gets on the but you can disable and clear said light band wagon or the get an O2 sensor extension wagon. Both of these are Band-Aid solutions that don't always work or work intermittently at best.
If you are uncomfortable doing the GST tune yourself. I think there are enough people on here that could do it for you if you asked. You will find someone near you who could do it for you for a case of beer or a few bucks etc..
I agree this shop looks like it does some incredible clean work but all the pictures I am seeing are of Muscle cars that have big full frames giant driveshaft tunnels and great ground clearance. What I did not see was examples on smaller lower import cars.
In the end it is your car and your money and you have to be happy with the final product. I have sat back for 5 years now watching threads across several Ralliart themed or related Forums only to watch dozens of people make the same mistakes over and over like a bad movie stuck in a never ending loop. Sorry it makes me wanna scream. Kind of like that girl in the horror movie who always trips right when the monster is chasing her.
There are a lot of parts on our cars where we don't have any choices or we have to engineer stuff our selves. The exhaust on our car is about the only exception. We have choices from several manufactures that give us better flow and performance, combined with weight reduction, better look and sound. Not to mention 3x the lifespan of the stock exhaust.
Whatever you decide to do keep us posted and provide feedback as to how it went and what you might have done different. I would like to hear back from you in a year or so after living with the new configuration.
Exhaust diameter?
Linear Mode
