TowRig.com - Diesel Discussion and Tow Tech

Ok, for 2007 Grand Rock is looking at offering our QP muffler inserts for the stacks in our stack kits. These mufflers have done very well with the Class 7 and 8 trucks, with keeping noise levels down, helping with fuel milaged, and also some with performance. Now the question is, how many of you would use these inserts? They would definatly quite the exhaust, which many wifes would like, but when you get on them really sound throaty and mean. So we are looking for some feed back, what do you all think?

IMHO, If I was putting stacks on (someday) I'd want all the noise I can get. :)

I can see them being perfect for the crowd that wants pipes but not the noise. I will admit sometimes I would like the quiet, but I just have to roll down the windows and listen to the sweet sound of straight piped stacks!

Thats what we are hoping for. I've been getting alot of feedback on that. Alot of guys saying they'd but stacks if they were a little quieter.:eek:

will i be able to remove the insert as i want? like a quick 5 min job and done? or will it be stuck for life?

then one could have the best of both worlds, and it would be VERY easy to do...

Grant

will i be able to remove the insert as i want? like a quick 5 min job and done? or will it be stuck for life?

then one could have the best of both worlds, and it would be VERY easy to do...

Grant

Well you do need to bolt these inserts in. Which means you will need to drill two mounting holes in each stack. Once you take the inserts out, you will have those two holes to worry about, but yeah you could remove them if needed. They will take less time to remove than it takes to install, I can say that much!

i think some stainless quick pins would do just fine... lol
Grant