Joon525

I'll post more later but this should give people a general idea of what you have to cut and how much.


Note: The DC's holes look bigger in that picture but trust me they're not, it's the carbon build up inside playing tricks on you. Both headers have about a 45mm opening there (~1.75"). Also note that the secondaries are longer on the GReddy.

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5hift

I'm gonna follow your threads on this. I may head this way too..

Keith

Is there enough space for the O2 sensor?

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sharkcohen

Should be plenty in that spot.

Joon525

I think it'll be tight but it should be able to fit in there.

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ziggity

if you didnt cut it it looks to me like that it would be close to the right length for a catless header good for hondata or obd1 guys

thats how i designed my DP anyways

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20th anniversary Prelude SH

Keith

It just looks like an odd spot for it.

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AccordSleeper

why not cut the exhaust instead of the header? that's what H22 swapped accords like mine have done.

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Paluce

Catless header!
Thumbs down to the rotten egg smell.

Also, if anyone has an extra DC B-pipe, I'd gladly take it off your hands for some $$$.

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01 JRSC'd Prelude (For sale!)
91 MR2 Turbo (New toy)
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Dragazn

would cutting the exhuast be bettter. also if u cut the header won't it be like the dc header performance?

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Joon525

I'm not cutting the exhaust this time. I have my own reasons for this though.
The DC and GReddy are still different even if you cut the collector.
I'll try to have more pictures up later tonight if I get home at a decent time.

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CTPRELUDE

If you guys dont want to actually cut the header or exhaust you can get a shorter testpipe or short high flow cat to make it fit.

Joon525

While this is a possibility I think this is too long for that. I'm pretty sure you HAVE to cut something. I'll try to take pictures of this being held up to the car when it goes in. If I can't get a picture then I'll just state the results in words.

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ThatPreludeGuy

When are you doing this Ray?

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What are you looking at??

Joon525

June 14th at RPMNYC. I'm tempted to find some place more local sooner though as I'm thinking all I have to do is bring the DC header with me and show it to a welder. Then I could do the install myself. But for now, June 14th.

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shiftgearz

What I would do, and this is just me... is get a universal highflow cat, and um yea have the muffler shop adjust how long the piping will be for the cat between the exhaust and downpipe.

My .02....

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ThatPreludeGuy

He has a 2.5" high flow cat but it's been throwing codes and he doesnt want that.

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Joon525

Even if you use the stock cat (which I will be for a few weeks) you HAVE to cut something anyway.

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ThatPreludeGuy

Ray, did you ever manage to get measurements against a SH header? If not I'm going to get a thread going looking for them, I really wouldn't mind this header and if it was going to fit without messing around it would be a done deal.

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Turbo Lude SH

test pipes smell fine, bad cat convertors smell like ass!

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2001 Prelude Type SH