Hey I just ordered the Kooks 1-7/8" longtubes and their 3" off road package. I was wondering about the fit of the headers and any easy methods from somebody that has done this header install already.
Installed them over the weekend. The drivers side was very easy to slide in from the top jacking the engine on one side. The passenger side was very tough, but got it in. The quality, fit etc. is excellent! Now for some dyno time. Baseline is 410.5rwhp 386ft/lbs. We will see.
I'm very intrested to install a long tube headers. Please update us with the performance gain and how does the car sound now. Does the cabin noise increases significantly? or is it still nice and quite inside?
Thanks Gorgon! Yes I am very pleased with the outcome especially over 400 ft./lbs. at a mere 4800rpm. I got on it on my way home today from a standing start. 2nd gear finally grabbed some traction after about 30ft. of rubber. lol! The funny thing is the car now sounds like a sport bike hehe.
I'm very intrested to install a long tube headers. Please update us with the performance gain and how does the car sound now. Does the cabin noise increases significantly? or is it still nice and quite inside?
The car is alot louder by far. I really have to be careful. People still want to race me though with their Carollas and Maximas. lol! That will never end. Minivans are one of my favorites to race lol!
I went with the LGM's last year. So you went with the off road package....do you get that odor others have talked about without the cats? Not wanting that smell wafting in with the top down, I went with the cats......only to have one go bad after about 3,000 miles :eyerole
Yes Brett, I do get that odor from the pipes. I don't blame you for wanting the cats either. Plus you have quite a few ponies to spare by the looks of the C5-R 427 hehe! I'm just trying to make a few ponies and can't spare them like yourself lol. I guess I can blame it on my tuner, he talked me into it. It's very loud and I do get a resonance somewhere in the 2200rpm range. Under full throttle with my extended rpm range it sounds just like a sportbike as I told Gorgon. It's still fun to drive and I have just a couple more things I would like to do, maybe a Fast Intake with a Fast 90, then AFR heads. Then it will be done until something fails. After that I will be in your boat with another block probably. Most likely for me will be a 402, or a 408 block hand built by myself. As sad as it is, it is like therapy for me lol!
I went with the LGM's last year. So you went with the off road package....do you get that odor others have talked about without the cats? Not wanting that smell wafting in with the top down, I went with the cats......only to have one go bad after about 3,000 miles :eyerole
What kind of odor are you talking about, can you describe it. Is it like burnt metal ???
I got that smell from just revving my motor in nuetral once and wondered if that is the same as you described.
It is "unburnt fuel" I get it as well with running no cats on my 87. It smells really bad and does not take long to start stinking of it. Us people with C4's have to do everything to try and make them faster :L.
It is "unburnt fuel" I get it as well with running no cats on my 87. It smells really bad and does not take long to start stinking of it. Us people with C4's have to do everything to try and make them faster :L.
Think of the people who are behind you in traffic and may not be able to get around you for a while... Do you throw your fast food bags, beer cans and cigarette butts out the window as well?
How much power do you gain from removing your cats? On the C5's it seems to be about 5 hp, which would unoticeable to most people.
People like you are why remote IR gross-pollutor sensing was developed in California but the state continues to test everybody every 2 years instead of just the ones that make the most smog. They were catching too many illegal Mexicans in their old beaters that would never pass a smog test...
Mine is not that bad. But one time my brother and I went to Arby's in his 73 455 TA, and we had to sit at the window for ten mins or so because I got a special order. It was funny when I looked in the rearview mirror and seen the guy behind me scratching his eyes, and using a paper towel to dry them.
Think of the people who are behind you in traffic and may not be able to get around you for a while... Do you throw your fast food bags, beer cans and cigarette butts out the window as well?
How much power do you gain from removing your cats? On the C5's it seems to be about 5 hp, which would unoticeable to most people.
People like you are why remote IR gross-pollutor sensing was developed in California but the state continues to test everybody every 2 years instead of just the ones that make the most smog. They were catching too many illegal Mexicans in their old beaters that would never pass a smog test...
Think of the people who are behind you in traffic and may not be able to get around you for a while... Do you throw your fast food bags, beer cans and cigarette butts out the window as well?
How much power do you gain from removing your cats? On the C5's it seems to be about 5 hp, which would unoticeable to most people.
People like you are why remote IR gross-pollutor sensing was developed in California but the state continues to test everybody every 2 years instead of just the ones that make the most smog. They were catching too many illegal Mexicans in their old beaters that would never pass a smog test...
Actaully on the early C4's you can gain easily 30 hp from removing the cats, and that is noticeable. I think the real problem in your reply would be the illegal immigrants, keep them out, and dont worry about emission testing. There are cars that produce more harmful emissions then my car would, I know because I see them blowing blue smoke out the pipe. So I dont worry about my car producing anything, I run good plugs, have a good coil, and burn good gas.
WHile we are on the topic of littering, and the environment, why don't you get smoking banned, because I am tired of breathing second hand smoke and getting cancer. Ask your grocer to switch brands of bags, so they are more environment friendly. And anyone who would drink and drive is an IDIOT. So next time, think more carefully of your response, because I found it very offensive. There are more problems in this world then some corvettes running around with no cats. Write your local congress person, and tell them to have big buisnesses cut down on their pollution. I live about 2 hours from chicago, and even closer to gary, both of which produce a haze of smog.
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I guess I can blame it on my tuner, he talked me into it. It's very loud and I do get a resonance somewhere in the 2200rpm range. Under full throttle with my extended rpm range it sounds just like a sportbike as I told Gorgon. It's still fun to drive and I have just a couple more things I would like to do, maybe a Fast Intake with a Fast 90, then AFR heads. Then it will be done until something fails. After that I will be in your boat with another block probably. Most likely for me will be a 402, or a 408 block hand built by myself. As sad as it is, it is like therapy for me lol!
