Originally Posted by shsfresh87
The only reason Im thinking about hollowing them out is because the mechanic we use is one of my dads best friends, we dont wanna get him n trouble if we get caught bc he does the inspection, would there b a sound or hp difference between hollowing them out or cutting them off?
That my friend I don't know. If that's the case you need to save for a new mid pipe w/ high flow cats, that way you get the Benefit of the larger diameter piping. Macs pro chamber pipe is a great option VS. the cost. Keep hearing ppl mention the pro chamber