Tomei Expreme Manifold : Anyone Have True Before/after?

[cobrAA]

Anyone ever been able to reproduce the claims tomei make about these manifold on a rb26 ?

I read about it and can't find much info beside marketing BS. no true testimonial. Also, My machnist looked at both and the difference is very slim.. to a point where you can ask yourself if it's worth it!

Thanks,

Alex

[BoostdR]

they flow almost 50% more than the std item, the std cast can be ported to within 5%.

Std will give you better response

Tomei will give you better flow at over 400rwkw

6 boost are better everywhere except installation.

Matt

[cobrAA]

they flow almost 50% more than the std item, the std cast can be ported to within 5%.

Std will give you better response

Tomei will give you better flow at over 400rwkw

6 boost are better everywhere except installation.

Matt

Flow 50% more? how comes? I mean the difference is like 2-3 more mm.

[Nee-san]

Size is but one small factor in fluid flow.

[Piggaz]

Had both. Cracked two sets of tomei's and one didnt last 1500kms. This is on a road car too. Ported stockers I was down 2kw. This is on a 400rwkw car. So sweet FA difference.

[Gav]

Had both. Cracked two sets of tomei's and one didnt last 1500kms. This is on a road car too. Ported stockers I was down 2kw. This is on a 400rwkw car. So sweet FA difference.

I cracked a pair of Tomei's on my GT-R. Welded a repair and then eventually wore a hole through on the top side of the bends. On my second pair now but as Piggaz has done my next set will be ported cast iron R34 oem units.