Accord Type R Header in Prelude

[Racerguy]

I have a 1995 prelude and just ordered an h22a7 accord type r header from the UK (I'm in the us). I was wondering what type of modifications I would have to make to my h22a jdm downpipe to be able to be used in my 4th generation prelude. From the little information I have found on these, the downpipe I have would be to long to be used in combination with the accord type r header. Appearantly nobody in the US knows anything about these headers and there is very little information to be found on them. Thanks in advance

[4thgenphil]

stock atr manifold? i dont think you can use the h22a down pipe. there are very little gain to using the atr manifold either !

[wurlycorner]

Just to clarify...
When you say you've bought a header, do you mean both manifold and downpipe, or just the manifold?
(We would normally refer to a 'header' as being both)

[Racerguy]

Sorry it's just the upper section that I purchased.

[mercutio]

i wouldnt have thought it would be any different to a jdm manifold

[Racerguy]

The runners are actually are bigger in diameter. And the upper section itself is a little longer. Only reason I didn't go aftermarket is because my racing sanction rules state oem parts only

[Merlin]

The ATR exhaust manifold is apparently double skinned. While the outer skin is bigger then the Prelude's, the inner is not much bigger.

[chrismc]

The ATR exhaust manifold is apparently double skinned. While the outer skin is bigger then the Prelude's, the inner is not much bigger.

Correct. Whilst perfectly functional I certainly wouldn't class it as an upgrade over the OEM item...

[jasonxr2racer]

will need ATR downpipe as well