The killer B manifold is head and shoulders above the rest in terms of power and spool gain but its priced accordingly

https://www.rallysportdirect.com/par...er-diy-rotated

 

Impressive Killer B spec but despite the high cost this doesn't seem to be an easy bolt on option.

 

Is it killer bee u have J

 

Hmmmmmm

 

My Wrx import had an unequal length manifold?

 

Link was for you bro As they do a 2 bolt up pipe version too

 

Correct that link was for a rotated setup, the below will work with a standard position turbo

https://www.rallysportdirect.com/par...-1-holy-header

 

Got me thinking that's all dude .......

 

https://youtu.be/oK3bVmvltdg

 

2.1

Single scroll s206b on std v3 heads. With a killer b motorsport manifold.

All mapped by Martyn Jeffery at Engine tuner. they do all the work to my car built the engine and mapped it for years.

Yes you would see gains.

Bum dyno backed up the actual dyno, everything was noticeably improved. Especially the way it builds and holds boost and transient response... we would have done a back to back test with the gt specs but my pile of crap gt specs literally fell apart when removed from the car...

The killer b units aren't aren't straight fit. But as I was the first person over here to do them I have come across and solved all the issues. For the next person it would be easy

 

How do the rcm EL compare?

 

Those are impressive results from someone who, like Banny, has been there and done it. JG, your last paragraph suggests fitting the Killer Bs is not a straightforward job. Do you have a 'how too' tucked away somewhere? That would be really interesting!

As an aside it would be helpful if those on SNet who fee free to offer advice on various technical subjects actually did it from personal experience rather than hearsay!

 

I think I must have been lucky as my GT specs have held together for a few years now. I keep expecting them to crack .........I guess I am tempting fate by saying that!

 

It isn't straight forward, but that is due to differences between the ukdm and usdm models. It is honestly not difficult to over come and everything can be achieved by a keen DIYer.

Yes I can always offer advice advice nd support if someone wanted to go this route.

The RCM equals I have not used but I have spent enormous amounts of time doing the research etc. As I do with everything I do on the car.

Although they are "equal length", they advice aren't really. The pipework is similar lengths but that is it. By using different radius bends etc you actually increase or decrease the resistance within the pipework.

The important part about the killer b units is that they use the same length, same radius and same diameter pipe. But they are also designed and flow matched. So each runner flows exactly the same with the same overall resistance etc. This means you have perfectly matched pulses and a much higher velocity gas and better heat transfer.

Larger up pipes have a larger surface area so more heat is transmitted into the pipework. You need to keep the gases hot to keep the velocity up to increase turbo response.

Your 2" up pipe, in comparison mine is 1.25"

 

Indeed. I've been through 2 sets of rcm; 1 set of gts, and 2 sets of Jap speeds

 

I think you're going rotated with your new set up if not already?

How much work is required to get the rotated killer B uppipe etc fitted ?

 

Are killer bee the only header then which has proven good results ?

I did say they were special

My point was with both the same brand headers like i stated

Both STOCK or both Gt Spec,

Like you said your the first to use killer bee so it's a rare setup.

Has there ever been any back to back tests of either ?

So what did you have to do to fit the Killer Bees on a uk car ?

Twin scroll sump etc. or more than that again ??

When not going rotated can I add

 

My new engine set up is a little bit special so will be sticking to standard position now.

Killer b will only sell rotated kits to shops not to individuals. As with the very band connections etc it requires welding and they won't take the risk of someone welding titanium steel themselves etc. How ever it's not a big deal to do. No different to any other rotated set up....

 

What about non rotated killer bees any info on their difficulty to fit ?

 

Plenty of back to back test of gt spec and killer b in the states.... Plenty of evidence around to support their claims that's for sure.

A little bit more than twinscroll sump, pick up etc. And some modification of oil modine etc.with the correct parts nothing that can't be achieved by a competent DIYer

 

Again i have no doubts Killer Bee perform, they are the best on the market

What I meant was back to back of same brand as I was comparing like with like,

As you say with the correct parts anything can be achieved

Can you enlighten us with what they are ?

So far you have hinted, Sump Pickup etc, oil modine is there anything else ?

What did you do with the oil modine ?

I'm guessing you are the competent DIYer you speak of so can you walk us through what you did as if we were all incompetent ?

Any real fabrication involved or just relocating parts that get in the way ?

Cheers

 

You need twinscroll sump, pick up, baffle, dips tick tube.

You also need to remove the oil modine and modify the pipework from the coolant system to it, it's fairly self explanatory when you remove the modine.

You need a different pipe/bolt than the filter bolts to the block with from anything that doesn't run a modine in the Subaru range. I think sports don't.

Bin the modine.

If running an oil cooler you may encounter further issues with having to reroute and change it round a bit

Then it's all fairly straight forward

 

Cheers mate did you wrap them ?

Did you go through KB directly ?

i see they also sell sumps and pickups,

i guess you could get the whole package ??

 

Yes the whole package is designed to work together.

Yes they are wrapped as it does not void the guarantee as they are designed to be wrapped.

I went through Chris at killer b direct. They will not however put different values on invoices etc so you will end up paying the full import tax on it.

These are mega expensive to import. Get the baffle plate, use a standard sump and get the pick up from them. Scubbay on here can source the baffles and pick up so the import charges are a bit better buying from a uk company

Allow as much again as the parts for your taxes etc. Chris was really helpful when I bought mine however he isn't interested in selling to the UK anymore as this forum and other put him off.

 

Could this be avoided if i got family in states to purchase and post themselves ?

What put him off ??

 

Jesus Christ! They are great headers, really nice, but if you were to buy the full package including thier sump and pick up, it would cost a small fortune!

 

No I doubt it. As it is fairly obviously a car part...

 

This sounds like a lost cause before you can even start! Short of smuggling them the Killer Bs are not even on the menu. And this before the UK leaves the Eu!

 

Not really.

When you go through 2 sets of gt or rcm which will happen, you have just paid for these.... initial outlay is higher but the fact you don't need to change them pays for themselves.....

 

If you want the best its going cost,

Are there no uk companys who can "copy" the killer bee design ?

What would u say J £1500-£2000 for the headers alone delivered to your door ?

Any videos of yours would like to hear what they sound like ?

Do they do a twin scroll version for even more spooly goodness again ??