Dump And Front Pipe

[Mick]

Hey i was wondering what u guys think, a sererate dump and front pipe, or an all in one front and dump pipe ..

[B0oStEr]

I just bought an all in one split dump/frontpipe.

The all in one design allows the wastegate pipe to be much longer than the HKS style split dump and separate frontpipe combo.

This is supposed to reduce turbulence therefore improving the flow.

Some say that the all in one bellmouth type can make more power in the top end than either of the split types when running high boost but not everyone agrees with this.

Do a search and make up your own mind.

[5LEEPER]

i was origianally going to go for a split style one... from marky at Exhaust technology (SA)

However he informed me that with the stock O2 sensor, they apparently have 3 prongs or somethin like that, and one of those sensors registers the heat expelled out of the turbo/wastegate.

now if your on full boost for a while (ie long hills thrash) then the air coming out of the wastegate pipe is much hotter than waht the O2 sensor (in the front pipe still) is reading.

Dont know exactly how this effects the computer etc of a stockish car..... but marky informed me to simply go for a bellmouth design.

[Evil]

i have a seperate dump and front and the difference was awesome... i think anything is better then the stock pipes...

my dump is an HKS, the front pipe is a blitz...

oh yeah a high flow cat is also needed imho...

[Mick]

yer the one in looking at is an all in one screamer and front pipe, so its like a normal front and dump all in one pipe but the seperate wastegate pipe doesnt join back into the exhaust. So what do you guys think ..

[RedDrifter]

My brother put one of the cheaper stainless type split dump pipes and it made quite a bit of difference.

Top end increased with heaps more mid range power.

[nsta]

Hey im getting a split dump very soon, a stainless steel one that goes from turbo to front pipe.

How is the factory unit restrictive???they look very similar in the pic above apart from the SPLIT design, is it just its flow capabilities of the stock one???

And i assume youll see the same amount of gains from going front/dump combo, or just the dump pipe unit itself with an aftermarket front pipe???

is it a good idea to have the split dump heatwrapped first?and how much wrap will i need?

Edited February 1, 2006 by nsta

[lows_13]

Does anyone have a particular brand preferance that seems to

perform better than the rest?

[gt-t_r34]

i was all in on getting one of the batmbl ones but after showing my friends they all say to get the greddy split dump and blitz front pipe because suposedly where the front and dump join has alot of stress and they crack easily there with the 2 in 1 designs,

and its actually happened on my mates s15 he had a 2 in 1 design and it cracked right where the dump and front would usally joing now he has the greddy & blitz combo!

around the same price as batmbls too

[lows_13]

Is there someone on the forums who sells them? (greddy & blitz)

What are the justjap.com ones like?

Has anyone actually re-enforced the welds on these dump pipes before?

[gt-t_r34]

dont know if anyone sells the greddy blitz items on this forum dont think so, but i can get them off my mate at auto barn for very good prices he beats nengun now!

havnt seen just jap

[lows_13]

Are they fairly easy to install?

[gt-t_r34]

if you have say some ramps yeah piece of piss

[lows_13]

You dont need to remove anything else other than the standard dump pipe & front pipe, to change to the modified versions?

[gt-t_r34]

o2 sensor thats about it

[lows_13]

Whats the verdict on this version?

Is this type also quite easy to install?