4Runner_101
Banned
if anyone has a good set of performance headers for a 3rd gen 2.7l let me know
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WTB:Performance headers 2.7l
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DeathCougar
New member
Although you don't need a "set" of headers for an inline 4cyl engine, I offer a factory upgrade here: http://www.toyota-4runner.org/sale-...ma-4runner-2-4l-2-7l-mini-header-kit-new.html
This kit is 100% bolt on, eliminates the troublesome cast manifold, and consumes less space.
4Runner_101
Banned
what do mean by not needing one? it doesnt help performance wise??
DeathCougar
New member
What I meant is, its not a set on a 4cyl engine, since its only ONE header. V6's have a "Set" since there are two. Just wanted to make sure it was clarified is all.
As for performance, headers don't help the 3RZ as much as people would like to think. The engine breathes quite well stock, so adding headers isn't really a big gain additive. Mostly "seat of the pants" feel, though different peoples experiences will vary. The biggest reason to get rid of the cast manifold is the cracking problem. They crack between #2 and #3 cylinders, and eventually crack all the way through. I have sold header kits to customers who sent me pictures of their manifold broken into 2 pieces! Of course the biggest problem with cracks and breaks that close to the head is risk of burning a valve. Seen that happen with countless engines, and then culprit always seems to be a cracked manifold.