Does anyone have the Apexi -Ws, I would like to know a little about it…like how loud is it over stock, and I saw there is a silencer that can be put on. Did you guys buy the silencer? In addition, I plain to install a y-pipe will it make it much louder? And where is a good place to purchase one their website has it for $499.00 for the Maxima! Way to much money. I don’t want a loud exhaust, want one for mostly looks
Thank for the help!

it is quite even with the y-pipe. i had a group deal awhile ago for 375 shipped on them. they also look really good

Lets just say with the CAI, you won't even notice the exhaust...it's VERY quiet for an aftermarket exhaust.
try Vitessi Motorsports: http://www.vitessi.com
I got mine from them for $400.77 shipped.

http://groupbuycenter.com/buy.asp?row_id=2374

Email the guy. He'll sell the WS for $360 or so.

Thanks guys, going to order one on Friday

The Apexi can be had for $405 shipped to DC. You can get a better deal by going thru his webpage. There is a coupon for $15 off the price. The problem is that they are out of stock for 2 - 3 weeks. i was hot and heavy to get one now. With the coupon, the pice, for me, is almost impossible to beat.

Lovejoy

I found a used greddy cat-back for sale, asking $350. Check the for sale section.