How Fast On 2.5" downpipe?

[dr_frankenstein]

we all know the 3" is well worth its meat down into the 10s....

but how fast do you think a 2.5" would be good for? built in the same fashion as say an THDP?

Thanks All,

A.j.

 

[coach]

TTA's are 2.5 and I know a few are low 11's. Car is a little lighter I believe.

 

[bison]

Into the 9's if it's shaped properly where it bolts up. The 3" is good well into the 9's. The stock setup works into the 10's.