Luke is there an available 4" for my 05 cummins? Would jumping to a 5" system hurt anything? new to the diesel realm...thanks for the assist!

Bill

 

Expandit only offer the 5" for the Common Rail Trucks. No performance loss with going to a 5" just a deeper exhaust tone.

 

thanks Luke I will be calling soon to get it.

 

Sounds good man....

 

 

TTT

 

I just bought an 05 ford yesterday and was wondering if it would throw any codes or anything with an exhaust and cat delete pipe. I plan on a sct tuner soon also. I'm use to 12 valves so all this stuff is new to me. Thanks

 

Nope you wont have any issue with codes. Id also like to suggest an EGR Delete Kit.