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what does it do?
 

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lets more air into your intake manifold but might lower the velocity and could decrease your throttle response. Thats not a big deal for drag racing but might effect you on a road course

the simple answer is it is suppose to give you more power, about 15 rwhp
 

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Gotta get a custom tune though.
 

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i see you have a CAI as well.

you will need to get an adaptor to fit the larger throttle body or get a new intake.
 

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mostly drain your bank account of $1000.
 

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90mm TB

The 90mm TB is designed to allow a greater volume of air to enter the intake manifold. You MUST tune the car to the correct air/fuel ratio with the TB installed to maximize performance gains, and to protect against catastrophic failure from running too lean. While even a relatively stock car can benefit from this mode (and a proper tune) this mod is especially helpful for those who are trying to move more air as a result of larger displacement (392/426's) and/or those who are doing significant porting to their manifolds and/or heads. While not a cheap mod, it is a worthwhile mod for those who are pursuing ever faster #'s.
 

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results

There is nothing to gain on a stock or even mildly modded 5.7 with this mod.

Even the 6.1 doesn't gain much if anything.

Unless you're going stroker or big cam/heads don't waste your money.

Get a torque converter instead. Pick up .2 to .5 instantly.
 
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