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Old 11-07-2010, 08:03 PM   #18
Junior2JZ
Scooby Guru
 
Member#: 64908
Join Date: Jun 2004
Chapter/Region: Tri-State
Location: Tuning 8/9sec Subies @ P&L
Vehicle:
10.8 XT+10.0@143 GR+
2x9.0@170mph GTRs

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Quote:
Originally Posted by Equilibrium Tuning View Post
I don't know... I haven't tuned too many perrin header VF cars that had a torque peak near 4500RPM. I've also seen a lot of perrin headers leak from the slips or warped flanges, so I wouldn't be surprised at all if that's what caused the excessive lag.

The only real fair comparison I see here is the one done by EFI. It shows some healthy gains above 5k RPM with a bit of added lag compared to a factory header. Now I'd really like to see a fair comparison with a Tomei/GTSpec/MadDad header.

-- Ed
Yea, lets compare them to my Tomei .. I could use every little bit of power in my 3500lb tank to move further up the vf list
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