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I’m fitting an rb25 turbo on my RB20 and am wondering what the best sounding outlet pipe is. I’ve looked at the tomei, but I’m not really looking at spending 300 usd for an outlet pipe. What else do you guys think? Also looking at downpipes aswell.

37 minutes ago, smart_garrett said:

I’m fitting an rb25 turbo on my RB20 and am wondering what the best sounding outlet pipe is. I’ve looked at the tomei, but I’m not really looking at spending 300 usd for an outlet pipe. What else do you guys think? Also looking at downpipes aswell.

Outlet pipes ( to intercooler?) don't make a sound. Find someone with an RB25DET and copy their set up with stock (second hand) gear. Yes get a three inch downpipe.

53 minutes ago, iruvyouskyrine said:

Oh you americans.

Doesn't matter what 'outlet pipe' you use, it's attached to an RB20 so going to sound good.

too right!

 

  • 9 months later...
On 1/31/2018 at 10:00 PM, niZmO_Man said:

But ...

o0480036014008616242.jpg

That's a R31house takoashi MAX manifold.... they are by far the nicest looking manifold for an RB and now long discontinued for the new version which is a direct replica of the gts-r manifold ? 

But yeah anyways...I have a gtsr manifold that's unfortunately been re-flanged and had a gate welded to it then removed and repaired at some stage....Cost me a packet too.

Would looks amazing if it wasn't that terrible chrome colour ?

Sidenote: My manifold sounds absolutely amazing but i cannot provide evidence as a truck crashed into the car the second day of driving it and now looking like its going to be written off :(

  • Sad 2
Would looks amazing if it wasn't that terrible chrome colour ?
Sidenote: My manifold sounds absolutely amazing but i cannot provide evidence as a truck crashed into the car the second day of driving it and now looking like its going to be written off [emoji20]


They're made from stainless just like the original gts-r takoashi and would discolour almost instantly with the first few drives and heat cycles. There's actually a picture somewhere I saw last week on the R31house owners blog of the ver3 test manifold after it was test fitted and ran for first time on the his R31 and it's turned a nice heat treated purple/brown/blue - ish colour...
  • 2 months later...
  • 3 weeks later...

Long time since I have been on SAU but I might be buying a new skyline.  Definitely  keen on a GTS-R manifold this time. The R31house takoashis are amazing. 

I noticed a fabricator in Australia is now making replica R31house takoashi style manifolds. The business is "speedtek". They have stainless versions on their Facebook page, and a steampipe version on  ebay.

Does anyone here know anything about these, and if they sound the same as the original GTS-R / R31house variants. The runner length and merge collector style is essential to the sound these manifolds make, so hopefully speedtek have those lengths correct. The stainless versions look perfect to me.

 

The good thing about a gts-r or takoashi  manifold is they  sound completely  different to any other turbo manifold, including equal length 6boost style ones... 

Some pics of these speedtek ones I have found are attached.

Here's my favourite video of a GTS-R manifolded car. Rb20, itbs, gtsr mani, pure madness. This guys youtube account is pure exhaust porn for anyone interested. 

https://www.youtube.com/watch?v=bhw8Tpa78wg

 

speedtek SP.jpg

speedtek SS.jpg

speedtek SS2.jpg

The manifolds look decent but speedtek don't have a good rep for various reasons. Some to do with quality and some to do with the dodgey guy that runs it. Can't remember the details about him right now but im sure some Google investigating will uncover it.

  • Like 1
19 hours ago, admS15 said:

The manifolds look decent but speedtek don't have a good rep for various reasons. Some to do with quality and some to do with the dodgey guy that runs it. Can't remember the details about him right now but im sure some Google investigating will uncover it.

Yep, some googling has revealed some pretty unsavoury stuff. Surely they  can't be that hard to make though? It's strange no one else has ever attempted them (excl  R31house). 

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