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Dump And Front Pipe

Mick

By Mick,
in Engines & Forced Induction

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B0oStEr Mentor

B0oStEr

Posted
Posted

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 Collaborator

5LEEPER

Posted
Posted

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.

Mick Mentor

Mick

Posted
  • Author
Posted

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 ..

nsta Mentor

nsta

Posted
Posted (edited)

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 by nsta
  • 1 month later...
gt-t_r34 Mentor

gt-t_r34

Posted
Posted

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

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