3" or 2.5" exhaust (pics)

74Burntorange said

would he lose torque if he goes 3? jw because if he goes three can he try to choke it a little by putting smaller exhaust tips or turndowns?

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I copied and pasted this off of Pypes Performance Exhaust.


Q: It seems as though 3" exhaust is the popular choice these days. Is there any disadvantages?
A: Yes! A stock horsepower car with 3" exhaust can lose noticeable low end torque and affect performance. Also, 3" pipe usually requires increased installation precision because of limited clearance issues. As a general rule, cars with less then 450hp should use 2.5" exhaust. Cars in the 450hp range could potentially benefit by a 3" crossover and still keeping 2.5" tails. Cars with 500hp + should utilize 3" or even larger tube size.