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Discussion Starter · #2 ·
Oh god, autoguide app doesn't display the table.

Pipe Diameter (inches)_|____Max HP
______2_______________|_____144
____2 1/4_____________|_____185
____2 1/2_____________|_____232
____2 3/4_____________|_____283
______3_______________|_____339
 

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Discussion Starter · #4 ·
So, then would it be impossible to get 350whp out of a 3in exhaust like the table suggests?

Sent from AutoGuide.com Free App
With good turbo kit, it's still possible. If the exhaust pipe is too small, you get tons of torque at low rpm but the engine will lose some needed HP at high rpm. To get the most HP out of engine, bigger exhaust pipe will help in this case.


Sent from AutoGuide.com App
 

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Ha...

So I need a 4 inch exhaust to make 400hp?

Rule of thumb is 2 1/2 inches for all motor and 3 inches for forced induction.
 

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Discussion Starter · #6 ·
4 inch pipe is huge! Looks cool also. But this will slow the car down actually. LOL!
 
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