Will Headers, Y-Pipe & Exhaust Muffler make a Difference?

I have been reading all over the forum and finally came to the conclusion I should just ask this question. I am looking to add a TRD Supercharger to me 08 DC. I wanted to know if anyone thinks the Doug Thorley shorty tube headers, y-pipe, and Exhaust with muffler will make any difference. It adds about $1000 for all of those pieces and I wanted to know if it would be worth it, over the stock system. I know the ECU will need to be reflashed after install of the S/C so, I would install the header/exhaust set up at the same time as the S/C.

Also, I dont want a loud exhaust sound if I can help it, some difference over stock is fine, but I would like to not go deaf with the Doug Thorley set up.

thanks
Ben

 

make a difference with what, power?

 

If you're going to make it breathe in that much better, you will definitely maximize your S/C by making it exhale as well. If you have the funds I say do the whole setup.

 

I supercharged my TACO and had the ecu reflashed, then I installed the CAI JBA shorty headers and magna flow exhaust. I noticed that the truck def ran better but I havnt dyno the truck. IMO I say def do it, I am looking to get the MAF map from URD soon

 

This may seem dumb, But I dont know.......why the long tubes instead of the shorty's?

 

long tubes should be ok with fitment right?

 

no smog checks here, so I should be ok. Would I go with the Long Tubes and the Y-pipe together? also, where would I find some O2 simulators? Any Ideas on where I should be price wise?