RB25DET Aftermarket Exhaust and Intake Manifolds -Where to Buy?

[zdonner]

I've searched around for a while for both of those, I mainly need a good exhaust manifold to start off with and then I'll look into the intake. I honestly have yet to find any exhaust manifolds other than used HKS manifolds on E-bay. The intake, well I've found a few Greddy's in some E-tailers but I'm wondering if there is anywhere to find them for less than $700?

I'd appreciate some help finding the exhaust manifold the most, those used manifolds are $800+ USED!! I can't imagine they cost more than that new! I'm sure it's supply and demand but there has to be a better way!

I'd like to find a nice cast manifold for the sake of durability and such.

Help!

[themadscientist]

what are your expectations for this engine in terms of power and usage?

[002-M-P]

Side question to go along with his main question (sorry for the hijack but figured you wouldn't mind knowing as well)....is there anything really wrong with buying an ebay manifold (obx, not ssautochrome) if you are going to make a brace to brace it back to the block? That would save a ton of money and be extremely easy. I wonder how likely those it would be to crack in that situation?

[zdonner]

Well my ULTIMATE goal as of now (spread over the next 12-16 months) is ~400-450 RWHP, initially I'd like to see 300-350 RWHP around the time I swap, I'm working with a budget of about $8,000.00 and I'm doing all the work myself minus the wiring harness.

[zdonner]

Side question to go along with his main question (sorry for the hijack but figured you wouldn't mind knowing as well)....is there anything really wrong with buying an ebay manifold (obx, not ssautochrome) if you are going to make a brace to brace it back to the block? That would save a ton of money and be extremely easy. I wonder how likely those it would be to crack in that situation?

OBX is an actual company (SSAC's backyard welding is not a company in my eyes) and I've seen their products improve dramatically over the years but I'm wanting to lean towards a cast manifold and they just don't offer that. I would go with a tube but I'd weary of who I'd purchase from.