spintech

I have been mulling over buying new mufflers for a long time. A friend of mine put spintech oval 4 inch pro-shootouts. There behind a 900hp 540, All I can say is there loud!!.

I just can't decide if there is anything to be gained???

On the amx, it has a set of 1 7/8 tubes, flowmaster "4-2-1" 3 1/2 collectors, 3 1/2 to 3 inch dr.gas X-pipe into 3 inch flow tech "terminator" mufflers and turn downs before the rear axle.

The whole package isn't very long something like 5 feet. I don't much about the mufflers I have except there cheap. I have been eyeballing the Pro-streets or the pro shootouts?? Is there any thing to be gained at the track?? with new spintechs?? Thats what I can't figure out.