jetex cat back system bhp

[p34ch3y]

just brought me a jetex cat back system st steel 2.5"
what kind of improvement should i get bhp ect ect?

 

[Jamie R]

I wouldnt of thought it would just improve your torque

 

[bigjode]

for power improvements, think race cat and DP - thats where the real restrictions are.

 

[acidstrato]

cat back is gonna do **** all for power, dont expect much