X Force Exhausts

[The Unforgiven]

I've been told X Force have recently released two full exhaust systems, both comprising of a 4" dump pipe and cat. One system utilises their traditional 3.5" ingle system, and the other whcih has only come to my attention over the last week is a new twin 2.5" system.

Which system would be their top of the range? I've forgotten the formula to calculate whether a twin 2.5" pipe would have a single circumference larger than that of a 3.5" pipe but my guess would be that the twin might just outflow the singe. I'm curious about prices and experiences with either of these systems.

Cheers

Edited 25/01/07 07:57 AM by Strangled Cat

[Evil F6]

I've been told X Force have recently released two full exhaust systems, both comprising of a 4" dump pipe and cat.  One system utilises their traditional 3.5" ingle system, and the other whcih has only come to my attention over the last week is a new twin 2.5" system.

Which system would be their top of the range?  I've forgotten the formula to calculate whether a twin 2.5" pipe would have a single circumference larger than that of a 3.5" pipe but my guess would be that the twin might just outflow the singe.  I'm curious about prices and experiences with either of these systems.

Cheers

←

Simple: flow is proportional to diameter squared.

2x(2.5)^2 = 12.5 > (3.5)^2 = 12.25

Not much in, but twin system flows a poofteenth more.

[NATHOON]

I have both systems the single sounds unreal but is a tad loud the twin 2 and 1/2 has a nice note with out the attention

[ExAreSix]

I was going to suggest the single would sound better.

I have the single. I wish when I'm driving the car I could sit 20m behind it. I've heard it only a couple of times from behind, and damn it sounds awesome.

[Fat-Tony]

Ok the twin might be bigger, but consider the turbulance created at the point where the single cat becomes a twin system, and also consider the fact that there is more surface area with the twin system = more heat transfer therefor slower exhaust flow = backpressure. Go with the single its not a V style engine so it dont require a twin system, its fords cost cutting using the v8 exhaust cause they couldnt be bothered designing a good flowing single system that was quiet enough to pass epa

[The Unforgiven]

I've been told X Force have recently released two full exhaust systems, both comprising of a 4" dump pipe and cat.  One system utilises their traditional 3.5" ingle system, and the other whcih has only come to my attention over the last week is a new twin 2.5" system.

Which system would be their top of the range?  I've forgotten the formula to calculate whether a twin 2.5" pipe would have a single circumference larger than that of a 3.5" pipe but my guess would be that the twin might just outflow the singe.  I'm curious about prices and experiences with either of these systems.

Cheers

←

Simple: flow is proportional to diameter squared.

2x(2.5)^2 = 12.5 > (3.5)^2 = 12.25

Not much in, but twin system flows a poofteenth more.

←

How much is the full systems supplied and fitted? Both have 4 inch cat and dump?

[SavageF6]

Simple: flow is proportional to diameter squared.

2x(2.5)^2 = 12.5 > (3.5)^2 = 12.25

Not much in, but twin system flows a poofteenth more.

←

Very nice work. A post with useful figures and use of the work 'poofteenth'.

[Evil F6]

Very nice work.  A post with useful figures and use of the work 'poofteenth'.

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Sorry, should of said a a bee's dick more flow. What figures would you prefer. I assumed the dimensions of the two sizes of exhaust he mentioned were relevant, but do you have others in mind