Need Help With Some Measurements Turbo to Firewall

[CrewCabDiesel]

Well the Killer B is installed, what a pita but it IS a direct fit!
It seems to be much quicker that stock , can't wait to turn up the bully dog after break in! the stock exhaust and air box has got to go, sounds like a tornado under the hood. I have the bully dog set on tow and just touching the gas gets the truck to 60 plus in a heartbeat. so far so good.
As for BD they took care of the deal, paid the same for the killer b as I paid for the super b.
any ideas what I need to add first to get the best performance out of the Killer B?
Thanks
Kyle

 

[p-Bar]

Glad to hear all went well and you guys at BD thanks for taking care of this situation

 

[AH64ID]

If your saying it's too loud with the stock intake, an aftermarket intake will make it worse.

Do you have the larger 4" OEM air filter?

A 4" TBE would be a good idea.

 

[CrewCabDiesel]

I got the biggest air filter I can get in the oem box, I think its 4 inches thick. Trying to get a new 5 inch exhaust or cut off muffler, anyone know the size of the oem exhaust tubing?
Thanks
Kyle

 

[AH64ID]

I got the biggest air filter I can get in the oem box, I think its 4 inches thick. Trying to get a new 5 inch exhaust or cut off muffler, anyone know the size of the oem exhaust tubing?
Thanks
Kyle

Early 04s are 3. 5 downpipe with a 4" exhaust.

A 5" is a lot more exhaust than you need, and will drone a lot easier when towing. A true 4" exhaust, with a 4" elbow from a 04. 5-07 is plenty of flow.

As long as the air filter is the OEM one I would stick with that.

 

[cerberusiam]

I got the biggest air filter I can get in the oem box, I think its 4 inches thick. Trying to get a new 5 inch exhaust or cut off muffler, anyone know the size of the oem exhaust tubing?
Thanks
Kyle

A 5" DP has the potential of messing with spool and low end power, you really don't need it for flow. Far better off investing in a 4" plus DP wrap, turbo boot, and manifold blanket. If you want the sound a DPF back 5" exhaust would be a good choice.