Weird Noise From Side Pipes....Search Performed...Additional Questions

[427BDR]

Originally Posted by Cashburn

Your first car came from us and did not have a Smeding engine... But I don't know if the noise you are describing is in fact what I am stating is the norm. Unless you guys are both unique at the same time? It's not something our customers are complaining about. So perhaps you need to YouTube it and/or get your dealer to work on it with you?

The current pipes are produced by the same company building far more units for several other BIG kit car companies and again not seeing these complaints on their forums or here.

Thanks Jay. Given what you've shared it seems Jeff and I may have received a bad batch. I've put a camera scope down the pipe and I don't see any packing, just perforated baffles along the inner walls of the pipe.

Originally Posted by ASO544

My best description is the sound of cards in the spokes of a bicycle. It has it slightly while ideling but really bad when de-accelerating with clutch out. Really odd noise. I already used stainless scres to secure the baffles thinking that was it. I also check all mounting bolts and heat shield bolts. Whatever the noise is is coming from inside the exhaust.

ASO544, what you are describing is the same issue Jeff and I have on our backdrafts. I also have the "sound of cards" you describe at idle, but it becomes very loud and turns into a rattle during deceleration. We're working with our dealer and backdraft for a solution but I'll secure an alternative set of pipes to fix it before next spring if needed.

Good Luck