Exhaust Question

[herc]

So I am thinking about getting the Magnaflow muffler in the link here:

 

http://www.magnaflow.com/02product/shopexd...main&id=494

 

I'm thinking I will have a X-pipe installed to the inlet side and then have the Y pipe coming from the cats cut and led into each side of the X-pipe.

 

This will be my first modded exhaust and my knowledge only comes from what I have read on forums. Just wondering your opinions on what this will do to my Torque and HP. Also what size pipes should I go 2.5 or 3?

 

Suggestions please!

 

Lol forgot to specify.... I have a '08 Silverado 6L

[alaska511]

do you have a truck?

[herc]

added it for ya

[ws6_guy]

there is no need for an X pipe on a di/do muffler, Magnaflow has an internal X pipe made into that muffler already. It will be quiet but loud when you want it though

[alaska511]

Darren beat me to it there is a ton of info on 6.0s and exhaust on this site if you search it...there is a lot of concern over the drone for that engine, so the Corsa fans will chime in soon good luck with your exhaust decision