So Mark, if i were to "max" out the K16's and just stick with this for a while, would this upgrade be worth it, and which wastegates would i get??

 

if u were in chicago.. we would be able to put these babies on.. and see for ourselves.... Im not sure because I didnt do it....on k16... and stock ecu

 

I have k16 but stage 2 ecu

 

kevin is correct... and if anyone knows its him....
how will they workk on a x-50 package that already has k24s?

 

kevin, thts what I thought.... so why dont more tuners offer this on like satge3 or 4.... for example.... I had tremendous improvement with ur billet wastegates.... the stock ones didnt even compare.

 

So i guess, going up to stg 3 on stock k16's (adding headers, straight pipes, ecu, evo v flow) this wouldnt be necessary or help? Thanks!

 

Headers are a waste of money until you add much larger turbos. I would suggest you put the header money to better use. Remove your turbos and send them to a local turbo house and work with them on a compressor upgrade. If you want to PM me I can help you with some choices on the compressor upgrade.

 

I agree.. or just port ur stock ones by urself with a dremel. if ur not pushing more then 550HP... then the stock ones r fine. i love it when people say and or assume that $2k headers produce 30 hp..
they dont.... good headers.. on a non high HP car will only increase flow.. and nothing does it better then ur stock ones.... when properly ported...
I would rather get a ecu.. and redo my kkks first...

 

Ok thanks for the info guys, i cant believe i sound like sucha noob by accident haha.. I was asking purely just for reference in how much you cna pull out of them. Sharky said he might need a tester for the K16headers so i was oging to do a few more things.. Basically iw ould love to go 800HP and shlt, it just isnt worth it to me at this time, after my investments and if i make out real well, i'll blow a good chunk but i learned already from my M3, im enjoying my car so much right now and just wanted a little more huice, i just want ot track it this spring/summer, that's it

 

So is the fact that EVO has 3 specific header designs (K16, K24, & GT700+) all hype ? Would you figure a car with say X50 Stage 3 (ECU mod., Air Intake, & Exhaust) would benefit from a set of the K24 headers.

 

It not that the headers won't do anything its that its so little at this stage that the monies are better spent increasing HP elsewhere. If you have the X50 then you can upgrade your compressors and achive more HP for the money than you would with headers. Expect 30-50 HP.

The compressor currently on your stock K24 was designed for stock boost and flow levels. You are now operating them outside of the most efficent portion of the MAP. When selecting a new compressor you just need to know what boost levels you are running and select the proper compressor wheel. Since most turbo houses have CNC machines they have the profile for many compressors already loaded. This makes upgrades cheap and easy.

 

Oh yeah, that is understandable. I guess the money is better spent on a set of zero clearance/modified K24's. I'm wondering if headers would be a good idea after that (& the stiffer wastegate springs).

 

Stiffer springs yes! Headers not as important but still nice.

 

So were does a guy get a set of these stiffer springs?

 

I have the springs from Tial Sport. They manufacture external wastegates so I would consider them to be the best source. The kit includes the billet clamps needed to reassemble the accuator after installing the springs. I installed them on my stock K24's and it did help spool up.