Exhaust Questions

I am going to be buying the Magnaflow catback for my car but had a quick question. http://store.summitracing.com/partdetail.asp?autofilter=1&part=MPE%2D15620&N=115+4294908153+4294907958+4294924760+4294923429+ 4294922451&autoview=sku so the catback has 3" in and 3" out correct? Also is it worth it to get a high flow cat, I have emissions in my state so I would have to replace that when I went for emissions.

i just bought the magnaflow exhaust for my 98 Trans Am..great system..3 in is the size of the tail pipes..they are 3inch slash cuts...um hi flow cats are good for another around 3-5 hp each...they are worth the money...but i would go with an off road y-pipe ..
and also magnaflow is on ebay ..look for the exhaust on their i know when i bought it they gave me a choice of 1 hi flow cat, indium spark plugs, K&N air filter for free...i went with the cat..so if you do that you only have to buy one more cat

o and correct for your 1st question

Do you know what seller you bought your's from?

type in trans am magnaflow exhaust in the search this page should come up
http://search.ebay.com/trans-am-magnaflow-exhaust_W0QQfkrZ1QQfromZR8
and i believe your exhaust has the part number of 15620... for the Lt1 engine..the sellers name is performancepeddler...good luck

ya, i bought from him manny of times, GREAT guy to buy from, he is like the #1 guy on there for exhaust.