MarkC

iTrader: (12)

Hi everyone

How much power can ported oem headers from a sti v4 handle? im hoping to achieve around 450bhp can i keep them for this kind of power?

Thanks
Mark

Aztec Performance Ltd

iTrader: (234)

Best to fit some decent tubular headers at that level and a long time before.

By all means, ported headers would work, but you would see benefit with tubular ones when you go over mid 300s imho.

http://www.andyforrestperformance.co.uk/16334.html

Aztec Performance Ltd

iTrader: (234)

Best to fit some decent tubular headers at that level and a long time before.

By all means, ported headers would work, but you would see benefit with tubular ones when you go over mid 300s imho.

http://www.andyforrestperformance.co.uk/16334.html

MarkC

iTrader: (12)

Thanks for the reply bob, the reason why i hoping to keep the oem headers was they are stronger than stainless steel headers. I read on another forum that some of the stainless headers crack and split?? Can you get aftermarket headers in mild steel?

Aztec Performance Ltd

iTrader: (234)

Some of the cheap ones do, yes.

The ones Andy sells are very good ones though.

Aztec Performance Ltd

iTrader: (234)

Some of the cheap ones do, yes.

The ones Andy sells are very good ones though.

MarkC

iTrader: (12)

Thanks for the info