I was wondering which exhaust would be better.

 

it depends on what ur doing. on a DD with say 350hp, 4 inch is plenty good enough. from what ive read, a 5 inch will cost u a lil more hp on a dyno if ur less than 500. good luck

 

I would like to have 5 inch. Thank you.

 

5 inch really dosent make any diffrence over 4" , I know tons of guys have posted that heat loss and so on and so on...It's bull. Maybe .5 RWHP . If your worried about power loss with 5" wrap the charger and part of the down pipe!

 

run 4 its plenty

 

yeah my truck at max is going to be 400 horse

 

4 Inch is actully plenty for over 600rwhp. Most go with 5" because of the deeper sound, no performance reasons really.

 

So 5 inch wont make your truck lose any power?

 

No not in any way. Maybe slow spool up a bit but not much.

 

yeah i found 4 inch and 5 inch at the same price so i think i might go with 5 inch. does 4 inch have a good sound to it.