If hes going S/C whats the point in getting a dp now? I'm waiting for headers after I S/C.

He's talking about money being a big deal to him. A top swap/header combo is far from cheap. I assumed it was going to be a while for him to get to that mod level. Even if he does get the DP, he can always get a PLOG, lots of SC guys run them.

True I get it.

You think a 3" is best for a N/A 3.8 then a 2.5"?

For top end power race track work the 3" is better but for DD around town when you're likely to never see 5k rpms the 2.5" is the way to go so you can take advantage of low end torque.

I would just get the 2.5 DP for now, headers really aren't a huge expense in comparison to a top-swap. If you're going to go through that expense, might as well complete your exhaust work at the same time. As Herc said, you will see gains with the 3, but only on the top end, and you will probably feel the hit on the bottom end.

Yes.

Read this if you don't believe me.
http://www.clubgp.com/newforum/tm.asp?m=4571652&p=1&tmode=1&smode=1

I have to agree with everyone else. Get the DP! I only paid $148 for my Magnaflow (Car Sound) DP about a year ago (it's $186 now)
http://store.summitracing.com/partdetail.asp?autofilter=1&part=MPE%2D23405&N=700+4294923429+4294924677+4294908153+4294908148+4294840137+4294838974+115&autoview=sku
I put it in myself and it was very easy (once I wrestled the old rusted on DP off). It was a perfectly fitting bolt on. The cat has never thrown a code, so no need to bypass the O2 sensor. It's only 2.5", but I'll never spend the $$$ for headers/top end swap/SC/etc. Combined with the Dynamax catback exhaust, it sounds nice, and there was an improvement in power and mpg.