Looking at running a donaldson 51 inch muffler from where the cat should be stock back to a stack kit I'd like to piece together.


Looks like I can get a universal kit for the bed from Grand Rock for $280. I'd also like to get some 5" bull haulers in 36" but I can't find any.


Anyone piece together a kit like this before? What else would I need?


Thanks in advance!

 

You can get everything you need at a local truck shop. They sell the Y-pipe for in the bed and all the 90s youll need. With a couple lengths of straight aluminized and a piece of flex for under the bed, you can build the setup yourself including the stacks for around $450.

 

You can buy the whole grand rock kit off of eBay for in the $500 range shipped. I got the 6" Aussie kit including all the piping, clamps, hardware that you will need for $575 shipped to my doorstep.

 

Thanks yall. You guys keeping your stock downtube back to where the converter should be stock?