Flipside Intake Manifold and matching throttle body q45
 

This will only work with 99 or newer heads.

Custom Flipside intake manifold for sale.
I never used it because I decided to go V8, bought it like it sits from another member here. Comes with some bungs that need to be welded.
It looks very beefy and well made, set up to work with a Q45 throttle body.
The runners are a work of CNC art!!!

This manifold is for those who want to make a lot of power, you do not need this for 300whp goals.

You will need to modify the alternator bracket to make this work.

$350, negotiable on the shipping.

$300 plus shipping!

I'm surprised nobody has jumped on this. Seems like a great deal. If I had a built motor i'd be all over this. GLWS

Yes, I agree, thanks!
To make it sweeter, I'd throw in the matching q45 throttle body for it.

The answer is simple: most here want lowend/midrange gains and this manifold is 100% for topend. I was tempted to buy it when Jay was selling it, and again now, but just cannot give up the lowend on a street car.

It is a VERY nice part though, and worth every penny. GLWS

Q45 throttle body...90mm thats a big boy.

GLWS looks amazing.

Top end glory.

Its like VTAK Powah!
Someone buy this!

100% correct, this is for top end gain.
My intentions were to modify it by making the runners longer and curve, just like JayL had in mind.
But going V8 changed my plans just a little bit.
Had I done that, this would be the nicest IM out there.

$300 shipped, includes t-body at that price.
Otherwise $250 shipped gets it.
T-body $50 shipped.

This is a hell of a deal. I wish my runners were that short.

Thank you Sir!
I am not going any lower than this, period!
Somebody is getting a steal.

What rpm is this suited for?

All of it.

From 5000 to... over 9000.

I already have the BEGI intake or I would be grabbing this! Q45 is 90mm TB? DAMN!

You could always sell that namebrand BEGi I am sure... ;)

what rpm is the begi suited for?

There is not a direct relationship between runner length and rpm.
Longer runners will have a strong resonance at a few RPM ranges, shorter runners will have a weaker resonance at a larger number of RPM ranges. So with something like this you would lose the torque "lump" created by the super long runners of the stock manifold, but should gain everywhere else and on up to high rpm where the stock manifold is choked.

I have seen where going to a shorter runner manifold created a gain not only at high rpm, but also at low rpm. With some loss in mid range.

If I still had a miata Id be all over this.

I am very tempted.

Reality is most people on here are fine with the OEM manifold, those who are breaking over 300whp are at the limits of the stocker but still fine, if you want anything more, then you really need to look at a different manifold. As far as manifolds go, this one here is just an ass-raping beast!

Will i gain anything even at low boost (for now)

All other factors being equal, I am sure you will see gains even at lower boost in the upper RPM range. Not sure what you would see in the lower RPM's.
I think it would be interesting to see a low boost dyno plot, I imagine it would be a very flat tq curve.

Those that want to see what something like this thing will do should check out JayL's and Leatherfaces old dyno plots. Both had short runner mani's, both lost torque down low and in the midrange, but both had very strong topend power.
And by topend I mean 5500+

I am curious why begi says one would lose power all around with their manifold unless +270ish hp.

The size and shape of plenum, and diameter and length of stacks, I would not compare the BEGi unit to this one, no idea what this mani would yield at lower boost or even at NA.
Biggest benefit of this mani would be with headwork (porting, cams etc.) and high boost, this thing would scream.

I'd buy it if the runners could be easily modified, but they are CNC'ed with complex shaping that would prevent using pipe. It would be easier to just start over.

I think you should put it back in your parts bin and wait for the right buyer and sell it for what it is worth.

Right buyer will come along, if it don't sell at this price I will let it sit.

Who knows, I may have a second Miata by then...

Sale pending!

To a new home she goes, but I am sure she will get properly abused!