X Force Twin 2.5" Or 3.5"

[IH8TOADS]

Higher boost = leaner AFR's and therefore leaves the car more prone to pinging

[bjc]

That to but would have thought the lowest boost tune would have plenty of headroom!

[FAST-XR]

single 3.5" will outflow the 2 x 2.5", even though the cross sectional area is almost equivalent

reason being the circumfrence of the single 3.5" is

(3.1415 x 3.5 x 25.4)= 279mm

and the circumfrence of the dual 2.5" is

2 x (3.1415 x 2.5 x 25.4) = 398mm

therefore there is 40% more surface area in the dual system, which will create more drag....

as far as what effects it has on power figures, who knows.... but it will flow more freely

Edited 30/03/10 01:56 AM by FAST-XR

[_Spin_]

Anyone, who says Tsv`s heat is the same as Brisbane has never been north Aspley.

[baigo]

Would like some feedback on the xforce 4" full exhaust dump pipe to tip got a quote in rockhampton $1860 fitted.

[bjc]

Is that for B series or FG?

I was quoted near $2500 fitted for full stainless 4in for FG.

Was yours mild steel?

[baigo]

yeah sorry 2010 fg in mild steel extra $550 for stainless, I herd that stainless is prone to spliting from extream temp changes ( hitting water on road)

[bjc]

Haven't had a problem with my single 3.5in on the BA and I live in flood territory so I wouldn't worry about it.

Maybe whoever told you that has the mild steel in stock only!

[STYLZEE]

I have a 4" dumpy and 3.5" xforce system in my car and it sounds like a jet.... no drone at all on the highway really happy with it when u change gears it makes this cool " doooo " sound too haha almost like a turbo diesel truck , but not as noticable.

[muss]

Has any one got the twin 2.5 stainless XForce system? still dont think I have read anywhere a comparison on note/drone for it??