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I am getting headers installed next month and wanted to know what additional work to do while things are coming apart. I think I have heard to replace the wires and plugs? Any input would be appreciated. I am doing LG street series headers, corsa axle back exhaust and a tune afterwards.
I highly recommend getting the headers (Inside and out) and the Outside of the X-pipe/Cats Ceramic Coated. Will be the best money you spend, IMHO... For me, it reduced the heat drastically under the hood and in the console area. Also, it looks awesome if you get the color your want. I got black...
Also make sure that they route the rear O2 sensor wiring above the tunnel plate or the headers will melt the connectors!!
I had routed them very nicely with Adel clamps and every thing and they seemed like they would be far enough away but I don't know if it was the heat shield deflecting the heat back down or what but ended up melting my connectors......
Mark
I assume you mean if the headers are not ceramic coated.
I assume you mean if the headers are not ceramic coated.
Not sure if that would make any difference as with the Kooks Headers w/cats the after cat O2 sensors the plastic connector if routed along the side of the tunnel on the exhaust side of the tunnel plate is only about an inch away from the cats. I sure it was the heat from the cats that melted them not the exhaust.......... After running them above the tunnel plate, no problems!!
Not sure if that would make any difference as with the Kooks Headers w/cats the after cat O2 sensors the plastic connector if routed along the side of the tunnel on the exhaust side of the tunnel plate is only about an inch away from the cats. I sure it was the heat from the cats that melted them not the exhaust.......... After running them above the tunnel plate, no problems!!
Mark
Got it, thanks. Was getting concerned, my o2 plastic connector is about 4 inches from the Cats. But, I had the external Cats/X-pipe ceramic coated too. So far, no issues.
Even if the headers are stainless steel? I shouldnt have to worry about rust correct? You are saying to coat them just for heat reduction? thanks!!
Originally Posted by berk4422
I highly recommend getting the headers (Inside and out) and the Outside of the X-pipe/Cats Ceramic Coated. Will be the best money you spend, IMHO... For me, it reduced the heat drastically under the hood and in the console area. Also, it looks awesome if you get the color your want. I got black...
JetHot Coated the Headers.
Elite Engineering Tunnel with Insulation
Lingenfelter Starter Heat Shield
Cool Sox Spark Plug Wire Covers
I'm not saying "you have to" do all of these upgrades, just happens to be what I personally wanted for the car.
I also think it's beneficial to have the headers coated. I went to a beefier tunnel plate more for increased rigidity than for heat mitigation but an improved tunnel plate (with insulation) will accomplish both. I've never needed a starter heat shield or needed to use cool socks on the plugs but I suppose they could only help.
Even if the headers are stainless steel? I shouldnt have to worry about rust correct? You are saying to coat them just for heat reduction? thanks!!
3 reasons (other than corrosion protection):
1) Heat Reduction under the hood and in the compartment
2) Exhaust gas retains its heat/temperture while still in the header, hot gas has an increased velocity, increased exit velocity contributes to scavenging affect. Read this: http://en.wikipedia.org/wiki/Exhaust_manifold
3) You're gonna like the way it looks, I guarantee it.
EDIT: Reason 4 - Lower temps eliminate need to expense on new wires, heat sock, repairs due to fried connectors wires...
I don't know the answer to your rust question, I guess it depends on the quality of the metal and a whole bunch of other factors I know nothing about. I did read that Ceramic coating inside and out helps prevent corrosion.
Last edited by berk4422; Dec 31, 2012 at 11:18 AM.
3 reasons (other than corrosion protection):
1) Heat Reduction under the hood and in the compartment
2) Exhaust gas retains its heat/temperture while still in the header, hot gas has an increased velocity, increased exit velocity contributes to scavenging affect. Read this: http://en.wikipedia.org/wiki/Exhaust_manifold
3) You're gonna like the way it looks, I guarantee it.
EDIT: Reason 4 - Lower temps eliminate need to expense on new wires, heat sock, repairs due to fried connectors wires...
I don't know the answer to your rust question, I guess it depends on the quality of the metal and a whole bunch of other factors I know nothing about. I did read that Ceramic coating inside and out helps prevent corrosion.