which is better?
you have the mufflex 4 inch exhaust if you have the car im talking about. thats a good catback i would keep it if i was you
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im going to run a 4 inch mufflex on my new build. the car is going to see 250-300 shot of nitrous on top of a 11.5-12.0:1 compression 396. I think you will be just fine as a friend of mine is running the mufflex on his procharged 383, and puts down some good numbers with alot of tuning troubles.
im going to run a 4 inch mufflex on my new build. the car is going to see 250-300 shot of nitrous on top of a 11.5-12.0:1 compression 396. I think you will be just fine as a friend of mine is running the mufflex on his procharged 383, and puts down some good numbers with alot of tuning troubles.





