I've come to the conclusion I'm going to have to make my own baffles for my Road Burner Dual Radius pipes.
Road Burner (which is the same as Hard Krome / DG Performance) makes a 2 piece exhaust end, with the baffle welded into another pipe. The nice exhaust you see is really just a heat shield covering the actual pipe and baffle. You can sort of see that here:
The outer pipe has an OD of 2", and it's flared at the end to 2 1/4 " where it attaches to outer shell of the exhaust. The inner pipe has an ID of 1 3/4". This piece is what slips over the header. The outer shell covers all that and you clamp it down with a compression clamp.
I called DG Performance and found out this 2 pipe configuration keeps the shell from any blueing or discoloration. Essentially, the innermost pipe is the "baffle", the pipe over that is the actual exhaust pipe, and the outer shell that you see is really just a big, pretty heat shield. And to top it all off, the pipes are bent since the pipes are swept.
No one make this type of 2 pipe baffle. I can buy a baffle, but no outer pipe around it.
I was thinking I could make a baffle like the Cobra Quiet baffles out of the inner pipe, but instead of 1 3/4" ID, I could use a 1 1/4" ID pipe.
So all the exhaust goes through the 1 1/4" pipe, which will have holes drilled all around it and wrapped in fiberglass. The pipe will be capped at the half way point, which will force the exhaust out the holes. I will then drill holes in the other half of the pipe, the end will be open and expanded to 2" OD to snug into the outer pipe.
This is similar in design to the Cobra quiet baffles:
except instead of a cap right at the beginning, the pipe will be open to snug
over the header.
The whole thing will be around 12" or 13" long. Once it's all assembled, I'll put it in my Harbor Freight pipe bender and give it the same bend the current baffles have.
this should give me some pretty decent sound reduction, but still be more free flowing than the stock exhaust.
So, having said all that, anyone have any advice? or ideas? I'm a pretty handy guy, good with tools, though I will have to do some welding, which I'm not too good at.
Thanks for any advice! And happy Thanksgiving!