1) I need to replace my Y-pipe. Called around and got a quote from a shop for $300 installed using their parts. Think I should go with the shop's parts or order an aftermarket one like WSP? Is there a big difference in performance? Opinions please.

2) When the car was up on the lift, we noticed that the rear main seal is leaking. Can't be too bad, I haven't noticed any drop in my oil level and I'm 2,750 miles since the last oil change. Do you think it will stay like this or likely worsen with time? What's the worst case scenario witht the rear seal?

 

Buy a premade Y.

That oil leak will only get worse. How fast it will get worse is the million $ question

 

1) I have to replace my y pipe too and im going with the warpspeed. I dont want to pay a whole lot for a y pipe so im getting the WSP NMB Y for $195 and my local shop said it would be $300 to install that Y and replace rear exhaust studs. To answer your question I would go with the WSP!

 

get the WSP