Old 034 log type manifold V wagner evo

[xgordyx]

Guys, I've got an old 034 log type manifold in my possession but was wondering the benefits of ditching the plans to use it in favor of a Wagner evo exhaust manifold.
My goal is a nice useable fast road car with about 450-500bhp. Would I get a less lag with the evo manifold? Also the 034 one is kkk flange is this more restrictive than a T3.

[Jamo]

Log manifolds are crap for performance cars, they promote high EGT's and backpressure as each cylinder does not have a separate path to the collector / flange

The T3 outflows the kkk flange, whether it helps lag I don't know but will help bhp

[GazzaG60]

they work, they boost a fraction quicker but for your hp jamo is on it the egt's and flow are against you.

[xgordyx]

So long and short of it is to bin the 034 manifold. I thought that would be the case as i didn't think it would flow well as the gasses are not being directed straight out the flange. I never really thought of EGTs but makes sence now it has been mentioned.