Split Dump Pipe

[woolls]

The split dump pipes that you can buy on ebay, Are they any good, considering they are only 2.5"? see pic att

Edited November 24, 2005 by woolls

[Tangles]

Why not grab a 3inch single stainless dump pipe off ebay? I got one off JustJap for around $200 delivered. Top quality, fitted to my Stagea (R33-based) without too much worry.

Or spend the extra $100 and get the long length split dump from Batmbl, in mild steel.

I would think a 2.5inch might be restrictive when you (eventually) go chasing higher kw gains........

[paulr33]

to be beneficial they need to split for approx 30cms. that being said batmbl (under business trader section) sells a split dump 3" and front pipe in one unit for around $300 ish i think and its a all in one piece that should do wonders if you have stock dump and front pipe setup

[R31Nismoid]

2.5inch = a waste of $$$

[QRI05E]

Hey guys, i just got back from my local exhaust shop and im having the same issue, wether to get a 1 piece 3" dump or split dump which begins as 2 1/2" then to 3"?? would there be any power gain advantages with the split? cause i heard they reduce tubulance when the waste-gate opens up.. what you guys reckon?? Here are some pics to give you an idea..

1 Piece Dump

Split Dump

[handyandy]

hi guys, i'm at the same point. Not sure which way to go.

Many sellers claim split dumps improve power by

so much %. but People will say almost anything to sell something.

intrested in results if anyone has any........

[R31Nismoid]

do a search on split dumps or similar, then you'll see

[32vspecII]

if the split dump is not really costing much more go for it

the theory is behind it is sound so you should pick up some sort of improvement

[kasanoff]

I'm using the CES split dump/front pipe (great quality btw)...

while i haven't compared the difference between the split and a standard 1 piece pipe, i can tell you that the difference between a split and stock pipes was HUGE. Boost comes on earlier and stronger.

Can also notice a difference when comparing against a couple of others with same mods but just 1 piece dump/front pipe (although this is just by my seat-of-my-pants guage)

like arkon, i believe the theory to be quite sound and that's what initially drew me to the split dump/front...

[Evil]

to be beneficial they need to split for approx 30cms. that being said batmbl (under business trader section) sells a split dump 3" and front pipe in one unit for around $300 ish i think and its a all in one piece that should do wonders if you have stock dump and front pipe setup

<{POST_SNAPBACK}>

i disagree... i have a genuine HKS split dump (which is not split for 30cm) and a 3" blitz front pipe and the difference the made was huge...

at the end of the day though, the standard dump pipe is a p.o.s... and any of the aftermarket dump / front pipes will benefit your car...

oh yeah if you are changing the dump / front pipe a high flow cat is a must imho...

[pmgrz2]

I got my split dump put in just a few days ago, car seems to have a much deeper/meaner sounding grunt, however does feel alot more sluggish when coming onto boost, almost regretting getting it put in atm, im just hoping ill see a bit of a benefit in the higher rev ranges - havnt actually experimented too much with this due to the hot weather.

[justin911]

i remember there was a guy at the ice dyno day a few weeks ago,

he just had the normal mods intercooler/exhust..

he nearly made the same as the cars with the pfcs

I thought they wouldnt be so good, but after speaking to him and seeing his result i wana get me one 2

[NateR31]

yeh, i think ill get one, but have a screamer pipe!

I read a few threads but i dont belive thier claims

8kw with a normal 3inch

16kw with a split dump setup