Hi, i have a few questions about these headers, questions which are not really answered on google.

Im running these headers with a TD05 and supporting mods.

How are the real world performance of these headers? How good are the quality of the slip-joints? common weak spots? can anyone vouch that these are most likely not the problem?

Ive checked manifold gaskets for leaks with fairy. i've also replaced the up-pipe gasket with a new one.

I've installed these headers and cannot get over 1.2 bar boost with the stock actuator on TD05. However using a mamba wastegate with a 1.5 bar spring i can achieve 1.45-.50 bar boost and hold 1.2ish bar to the redline using a 3 port wg controller and 75% ish wg duty.

the best i have been able to achieve in gear 3 is 1bar by 3.8k rpms and full boost by 4.2kish.

My fuel trims are all good according to ESL fuel trims.

The only weird thing about my car is hunting revs on cold start in the morning. (IACV is clean as a whistle).

and lastly, with my AEM uego wideband, i was reaching 1:1 target afr and actual afr until my 2nd wide-band sensor nuked itself (installed according to instructions)

Apologies for the random bombardment of questions.

here is a pic:
https://a.d-cd.net/74a8ebes-1920.jpg

 

I had the Maxim Works version which I think are the same, they look identical at least. The brackets on some of the slip joints had to be rewelded as I did get some minor exhaust leaks from them, otherwise they were fine.

My car already had them when I bought it but it did produce good power with the VF28 on my Type R, 348 hp on V Power with FMIC, and 370 hp with the same turbo on E85. Maybe the spoolup felt a bit slow but I didn't have the original exhaust manifold to compare with. I think it peaked at about 1.4 bar with the VF28.

The diameter of the pipes is smaller than the OEM exhaust manifold so you really need to get the map looked over so that you don't risk anything. The exhaust temp should be higher with this manifold if the map is the same.

Great sounding manifold with an unique tone btw, I would have kept it if they pipes were larger.

 

nice input. i really tried to see if i can hear exhaust leaks from the headers on a ramp but i really couldn't.

blocked the exhaust and all sorts.

surely if it was an exhaust leak that could be causing performance issues, it would have been heard right ?

 

Yes the small leaks I had were easy to hear and the leaking slip joints were black from the exhausts also.

 

So how did you go about fixing the leaking slipjoints ?

 

did u take any pics ?

 

In my case the brackets for the slip joints had broken off and needed to be welded in place again. If nothing is loose on your manifold then no need to do anything.