I figured I would make a clean post since the last one was mainly about a product that doesnt exist

I have dug through alot of prices and charts, but still have a couple questions.

1. Which headers will fit with my CHE K-Member Brace with Torque limiters. (Please let me know which headers you have with yours, or which you know wont fit. Even if you only know about 1, that is 1 more than I know.)

2. I do not want to weld the pipes. I am looking for a clamp together kit. (Once again if you only know that one kind is clamped or welded please share)

3. I cant seem to find a mid pipe from Hooker or BBK. Are the mid pipes interchangable between the brands?

4. Mac is cheap, and cheap is a big plus for me. So in short what is wrong with MAC? and what does the Pro Chamber sound like? I want loud, does this muffle the sound alot? (I have FRPP Stringer Axle Backs)

I have to keep CATs. Right now I do not live in an emissions county but Im a contract design engineer so I could have to move at anytime. (Nomadic Carney (Inside Joke for other Contractors))

I expect they will all have similar gains, so price and sound are big factors for me. The matierial is an issue aswell however, I expect even the cheap steel will hold up for a lot of miles. Anyone disagree?

Attached is a pic of a spread sheet of the prices I have found. Am I missing any brands? DO you guys know of a place that is cheaper?

[IMG]local://upfiles/20416/CE124DA5543447E995796EDD33D514F8.jpg[/IMG]

 

1. I can't speak for all Headers, but I am quite sure that Dynatech, Kooks, and American Racing longtubes will all clear this brace. I doubt it will cause a clearance problem. If you have any questions, I would call CHE and ask them. They would know best.

2. AFIK all of them are clamp-together. The three I mentioned certainly are.

3. Midpipes are NOT interchangeable between brands.

4. I can't say, I haven't handled or installed any MAC products.

As for holding up, plain steel headers (Hooker) will rust very quickly unless you get the coated type. Even then the coating has a limited lifetime. A stainless header will last the longest. Among stainless there are various grades as well, 304 is the best. JBA uses 409, which is better than mild steel but it's not as good as 304.

Stainless has two benefits. First, it doesn't rust. Second, stainless has poor heat conductivity compared to regular steel. This has a similar effect to a thermal coating (only more effective) that traps heat inside the header. That keeps your engine compartment cooler, and can provide a minor performance edge becacuse the exhaust velocities stay high.

A few notes:

Hooker does make a mid-pipe. I have heard of some guys on the forum who used it. But I don't know the price or where to get it, and I am fairly sure it's an "off road" pipe with no cats. You might try Hooker's web site.

When calculating your price, make sure you include ALL the parts you might need. Some kits are more complete than others. For example, with your typical longtube & catted midpipe install you will need:

Exhaust gaskets (2)
Header bolts
Oxygen sensor wiring extensions (4)
Various clamps, collector gaskets, etc.

Some packages come with this stuff and some don't. I know that the Dynatech kit comes will all of this stuff. I am fairly sure the cheaper brands like Hooker do not. You might want to keep this in mind when you're calculating your costs. Ask the vendors what the kit includes and if there is anything else you may need.

 

4. I have Mac LongTubes's with the pro-chamber pipe. I have no problems with Mac. I had Mac equal length shorties on my 93 GT, again no problems. I give them two thumbs up

 

The Dynatech's will work with the CHE torque limiters and brace. They WILL NOT work with SLP L/T's. I had to modify the brace on my buddy's Roush to make it work with them.

No welding with Dynatech. VERY good quality and fit.

Midpipes - Get a complete setup that includes them.

Mac - I don't have personal experience, but hear that the welds are an issue and not clean.

Dynatech comes with cats that are very freeflowing and of high quality. The 4 bolt flange at the collector and the ball and socket ceramic gasket provide an awesome seal.

 

What about warranty with LTs. If I had to take the car in can I reset the tune back to stock for a limited time with LTs? I was hoping if I got mil eleminators I could go back to the stock tune and leave the headers on if I went in for warranty work. I hope I never have to but I really would not want to have to pull these back off. I know they would not warranty my exhaust then but they shouldnt be able to say they hurt anything else. As with the tune they can blame almost anything on.

How low do the dynotech headers ride? I figure they are all pretty close to the same. Is that true? I have to be able to get into the driveway

 

The headers will work just fine with a stock tune. It's just that with a stock tune, you won't get any extra HP from them.


Clearance is no issue with the Dynatechs. They are no lower than the OEM setup.

 

Will it work even without the Mil eliminators? I thought I would get a check engine light.

 

+1

 

Sure. MIL Eliminators are only needed if you have no cats. Becasue you are looking at a setup with cats, you'll be fine and you don't need the MIL eliminators.

 

Ok very cool, I thought I had read that high flow cats would through the code, as they are more free flowing.