HKS now has a very nice replacement exhaust manifold for the 2008 + WRX and STi. Features full stainless steel contruction, 42mm primaries, a 4-1 design, and includes all required gaskets. Now, I know usually HKS is sometimes HK$, but not in this case. They have priced this aggressively! How long the price will remain this low is still to be determined, so best to snatch it up now while inventory is available and the price is so attractive. Priced now at $550 with free shipping in the 48 states!
Adam’s NA Z33- Update
11 JunI just can’t seem to leave well enough alone. While I’m still working on finishing the ITB project, I picked up something to have some interim fun with. Much love to Viet for hooking it up!
Since I sold my nice 3 inch carbon intake tube I’m going to have to fab something else up. At least with the Haltech now in the car I don’t have to worry about a MAF housing (good thing, since I sold that too!) or a fancy intake (foiled again…sold the Gruppe-M one I was running). Word to the wise – don’t sell the old shit till the new shit is fully functional! I was going to go all psuedo hardcore and make a nice aluminum one, but who gives a shit…it’s an intake tube and it’s temporary, so some thin walled mild steel, will be just fine. Maybe I’ll even ceramic coat it (or maybe I’ll use ‘House of Krylon’…we’ll see). If I ceramic coat it, I “may” coat the plenum as well – haven’t given it much thought yet.
Not sure what throttle body I will run yet. The left side of my brain says to just put on a stock throttle body, convert the car back to DBW (easy thankfully) and have a go. The right side says…screw it, grab a Q45 tb, leave it as a cable throttle, port the inlet to the plenum (or cut it up and reweld the proper size flange on) and let her rip. Jury is still out…I’ll probably let the guru Steve (engine builder) make that call for me.
Tomorrow it goes out to be evaluated on the bench, see if we can maybe clean up some of the runners a bit so everything lines up nicey-nice. At least now maybe I can drive my car for a bit instead of just looking longingly at her!
Notice the true carbon endcaps…no Seibon/VIS wannabe stuff here. Cosworth always gives you the real deal.
For everyone who says this manifold is “overpriced”, you’re nuts, plain and simple. The asking price for it new, at full MSRP, given it’s thoughful design, cast manufacturing, and the real carbon endcaps and all the fittings to make it work, is a bargain. Is this the manifold for someone who has a stock Z or even one with a mild turbo kit? Nope, not at all (though it looks way nicer than stock!). But if you’re going all out, and want a plenum that will go there with you, this is a bargain IMHO. This isn’t a paperweight/canoe anchor design like some others out there, and it does, without question, solve the flow issues (of which there are many) that the stock setup has.