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to any one thinking of doing a maffles tune to a vt ls1, dont bother, coz the intake manifold has heaps of restrictions, better off sourcing out a vx or vy manifold as they are heaps better!!
wouldnt say HEAPS maybe 7-10rwkw MAX by swaping to an LS6 Manifold
VT II SS
with full exhuast
stock LS1 manifold
Custom Tune by me
OTR
low 13's
not worth it you say:whistling
Agreed on the LS6 Manifold swap on VT II, dont forget injectors as well.
VX SS I M6
Full exhaust
Stock Diff
Standard tyres
NO OTR!
Edit by NO ONE
13.4 @ 104mph
And yes OLS, you can check on LS1.com did it 4yrs ago
to any one thinking of doing a maffles tune to a vt ls1, dont bother, coz the intake manifold has heaps of restrictions, better off sourcing out a vx or vy manifold as they are heaps better!!