What's The Best Header For The 4.6

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they are expensive, you can't deny it, but i firmly believe that they are top quality and are a proven mod.

i can't remember the thread but recently someone posted up a thread and they had them for a great price. PartShopper has them too for a pretty decent price.
 
california emissions laws prohibit the use of LT headers. I can't remember the reason, but it may have something to do with altering the amount of catalytic converters, which is illegal here. Trust me, if it was legal, JBA would be making LT's for us and I'd have a set on my car.


If you want mid-lengths, JBA has some coming out soon (1-2 months)...



gruntman31, perhaps i was thinking of a specific brand of LT's that won't work with automatics? :shrug:
 
decoy562 said:
I think I'll probably get the Mac LT headers, ever hear of any problems with those?

First off, I am not bashing Mac and they are, in fact, what I will be installing this spring to compliment my new cams. But...there have been some posts that dealt with issues on the Macs. Most of them have been with '99-'01 Cobras that had Macs installed and then ended up with blow-by, scored cylinders, etc. Most of the people have pointed fingers at the "slag" in the tubes that was left over from welding when they were manufactured being put back in the engine from the EGR. There have been guys on Modular Depot and other boards that have installed the Mac LTs and temporarliy blocked their EGR valve so that all the slag that might come loose would be blown out before reconnecting it. Otherwise, I think the Macs are the best bang for the buck in LTs.
 
GoneMad96 said:
I Need A Set Of Shortys But Dont Know Which Too Get Help Me Out



Shorty's are a waste of money first of all. You wont make much more power at all if any over stock manifolds. But with that out of the way I would go with the NEW BBK shorty its called like a stepped tuner or somehting. It looks awesome. It sounds like these midpipes you other guys are talking about. It looks like a really trick piece. I got the FMS they're junk.
 
GoneMad96 said:
I Need A Set Of Shortys But Dont Know Which Too Get Help Me Out

I got my JBA Shorty Headers at Sacramento Mustang for $479.00.

http://www.sacramento-mustang.com/Products/products.html

These were only the Stainless Steel ones though but I am very happy with them. Coupled with my Magnapack catback, the sound is very racy. I don't have dyno sheets but there is a noticeable difference in acceleration and gas pedal response. Someone also pointed out that JBA is coming out with mid-lenth headers. You might want to check them out:

http://www.jbaheaders.com/