I am in a bit of a predicament. I am hoping some guys with experience can tell me what they would do.

I have a 2000 WS6 with 11k miles. I only drive about 750 miles a year. I don't see this changing by much. I don't race the car, but I do like getting on it.

It is a M6. Lid, SLP long tubes, high flow cats, SLP cat back.

It has been throwing a light, I had it put on a scanner and it showed that it was the o2 sensors. I didn't think much of it.

I tried to get car tuned, and I was told that my Air Fuel Ratio's are off. I was told this is because I have a LS6 intake with the EGR adapters.
The guess is that there is a leak around this adaptation somewhere.

Question 1: Is this a common problem? Is there a cheap easy fix? Can't I just remove the EGR system and cap off where it plugs into the intake?

Question 2: I plan on keeping this car for a long time. From a classic car standpoint should I go with a LS6 intake or can I upgrade to a FAST 92 without devaluing the car? I would like to do a FAST 92 Intake with a NW 92mm TB.

Question 3: If I were to mod my car to my enjoyment, I would like to do 4.10 gears, MGW shifter, get some CCW rims, in addition to the FAST 92 intake. Am I ruining it from a classic car perspective? Of course I would keep all stock parts. I have the original window sticker, but no other proof. I believe it to be an original WS6 or I wouldn't have bought it.

I understand that it is not a 2002 which would have been ideal from a from a classic car standpoint. But it is a very clean 2000.

I appreciate your opinions.

 

From a classic musclecar standpoint it would depend on the crowd. The real attraction is its clean, low miles, and not all cutup for racing. As to your second question yes you can plug it up. Just about any hardware store will have the plug your looking for.

 

It may never be worth more than the what you paid for it in the first place, You have to remember that very few cars from the past are really that valuable even after 40-50 years. The cars that are really valuable are usually low production number cars and that alone does not make them valuable. It will depend on what the market will be like in future to know it will be on the must have list of collectors. Think about it this way, If in 1970 you bought a SS454 Chevelle and it cost $4500 and today that same car is worth $40,000 or even $70,000 would you think made a good investment? If you said yes then you would most likely be wrong. After you figure in the cost of the car and all the yearly costs to keep it and adjust for inflation you'd be lucky to break even. It might be worth keeping the miles low and the car somewhat original (no changes that can't be undone) So that your children or grandchildren might be able to cash in on it but other than that make the changes but keep the parts and enjoy the car.

 

If you are worried about value going down because of the intake don't be. You can put the Fast intake on and just keep the original LS6 intake on a shelf. If you ever sell it you can give the original part with the car. You see this with older cars all the time. A bolt on isn't really a permanent mod so a collector could put it back easily.

Beyond that I also wouldn't worry about "classic car" value. The cars value will come from the low miles and condition. Not to be mean but a 2000 year car will have a hard time ever being a valuable car as a classic. There are just too many out there. In most peoples eyes nothing after 1980 is classic. Even the late 70's the manufacturing process changed allowing cars to roll out in massive numbers. This is all opinion from the crowds I associate with.

 

If the O2's is bad it will throw of the fuel to air ratio , the O2's tells the ecm what fuel is being burnt and if O2 is bad them the ecm can not calculate and adjust the mixture and if you remove the EGR ,it will throw a code, or you could have your tuner to remove it. I have a 2000WS6 and run a LS6 intake for years and never had any problems with the EGR block off. If you was throwing a code over the leaky EGR adapter it would haft be a bad leak and would make the engine run very lean because of the air bypassing the mass air sensor and not getting calculated . Was the LS6 intake drilled out for the EGR tube adapter ?

 

I believe the intake was drilled for the egr fitting. I was told that slp offered this back in the day. I talked to finish line here in Chicago and I was told that it probably is an ls1 intake. So now I need to check that. Secondly he suggested just taking a brass fitting and freeze welding the egr port on the intake. And then just removing egr and also removing code.

 

I agree with everyone about the classic car question. I think I am past that and will just try to enjoy car now.

 

The part number is on the passenger side of the intake between the #2 and #4 plug

97-00 LS1 Manifold #12556333 curved bottom
http://img.photobucket.com/albums/v4...7/CIMG1047.jpg

01-02 LS6 Manifold #12561182 flat bottom
http://img.photobucket.com/albums/v4...7/CIMG1110.jpg