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Hey All,

Just wondering what dump pipes and front pipes you all have?

As some of you know i just got my stagea on sunday, it already has a fujitsubo cat back system but i want a stainless dump and front pipe. But im not sure if R33 Skyline dumps and fronts fit without modification.

Or am i better off getting a custom dump and front made through an exhaust shop over an off the shelf item.

Thanks for all the responses in advance

Simon

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I'm pretty sure Alex has the split BOSimporting one.

I've got a custom made one l bought off a guy who owned an r33 ... haven't had a chance to fit it up yet though.

And we'll have to catch up soon ... def time for another stagea meet with all these new Stag's about!! :P

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I am currently modifying mine and adding a split front/dump pipe all the way back to the new magic cat. And as the turbo housing needs to be modified as well to make the split wastegate effective, I used my mates which he had already moded - it was a from an R33 and bolted straight on. The turbo needs to be completely removed to do this.

From what I have read on other threads, unless the split is a couple of feet in length it is a 'waste' of time (no pun intended). However the first foot of the dump pipe is the hardest to manufacture (if you're doing it on your own) so buying an off the shelf item and then chopping off the back end and extending it further along to the cat can be as easier way to go.

My costs so far:

Moded turbo housing - free

Turbo flange with split wastegate - $35

Magic Cat $300

3 inch 2 bolt flange - $15

Mild steel 3 inch pipe - free

1.25 inch wastgate pipe, pre bent from exhaust shop - $35

O2 sensor nut - free, you need 18mm ID X 1.25mm thread

An off the shelf split dump pipe is going to cost $150-200 then you still need to cut and extend it (unless you get one that is already the right length) Plus you'll need a larger cat or you're wasting your time by leaving a hefty flow restriction in the system. IMO stainless is just for show unless you're keeping the car for more then ten years. Or unless you intend to heat wrap the dumps.

Edited by 3intheBack
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BATMBL is the man, stainless or mild steel. Send him a PM, he has them in stock. BTW $300 for the Magic 4" cat was a lot, they were $210 on the Group Buy.

Tip, when looking for stuff try the Group Buy section first, good prices and always plenty of reports back from other SAU guys.

:blink: cheers :)

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I'm running a split dump made up to suit r33's from Advan. is stainless steel,cost me $350,and needed a 1/2" thick spacer to mate up to the cat properly,as it's shorter than the std dump.

Justin...

Edited by fergo308
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$300 for the Magic 4" cat was a lot, they were $210 on the Group Buy.

:D cheers :D

I agree and I told/ask them about matching the group buy and they wouldnt be in it.

Usual deal...wanted it in a hurry to complete the job, so I paid up, then didnt finish it before the skidpan day so now the car has a modified turbo housing connected to the std front/dump - sounds like its passing wind all the time.

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Yes i just pm`d BATMBL earlier and he was more than helpful.

Just gotta get a couple of other things done to the car this weekend and then in about 2 weeks i will order the dump, front and cat!

Cheers for all the help too guys

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hhhmmm all too hard.....

this is what I bought:

a BATMBL 3inch hiflow cat converter, bolted that on to mate onto the 3inch cat-back exhaust system that was already on the car.

then I went off to ebay, and bought, for roughly $220 delivered, a Just Jap stainless steel 3inch dump pipe (from turbo to catconverter). easy, for an R33 gtst, no hassles, installed by mechanics when I had other stuff tuned. Mind you, thinking about it, Im sure they machined down the edge that mates to the turbo, and added a spot weld and threw in a gasket - like under $100 to install it. Quality was good, not 100% perfect, but definately useable and a good price I thought. Does the job!

Anyway, that makes it cheap and easy. why pay $300 more for a split system??? I dont get it, unless you are chasing maximum HP

Edited by Tangles
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Anyway, that makes it cheap and easy. why pay $300 more for a split system??? I dont get it, unless you are chasing maximum HP

My thinking,

The split flows better with reduces turbulence generated by the 2 outlets when the waste gate is opened, this would be a benefit on a standard engine/turbo/boost set up the same as it would be on a modified set up. You wouldn't say "I want 150 awkw" and stick with a standard exhaust system, winding up the boost and supporting mods until you got to that power level, so why not use a split dump/front that flows better than a single front pipe?

Just my angle, I don't think you would go from what you have to a split now Brendan but maybe from standard this is a better option?

Interested to know why it doesn't fit the High Flow, has to have something to do with the exhaust housing being machined and the pipe no longer matching that size I guess...

Chasing maximum benefit!

Cheers

Luke

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Be careful with the SS front/dump pipe, it will only suit a standard turbo, not a highflowed one, i came across that problem.

Could you please explain? i've just gotten myself a hi-flo, and i thought they used the exact same turbo housing as the standard turbo. why would this mean any standard dump pipe wouldn't work? i've got a custom mild steel dump, nothing flash but i just don't want to have to fork out for mods to my exhaust if this turbo is different

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