[Advanced Design]

Todd,

Thanks again for the measurements. Today I was able to try the downpipes and it looks like they will work for my application.

It would be helpful for a lot of builders if Holley could provide the dimensions for all the downpipes, as you provided for me above, in product listings.

Also, these downpipes had a lot of sanding debris left in the pipe. I don't know if all of them produced are the same .... and someone somewhere is going to miss cleaning out the debris. My concern would be the debris could migrate back into the engine or possibly contaminate an O2 sensor. The instructions with the down pipes didn't advise to check or clean them. Perhaps they could be revised.

Or better yet the production process could include a cleaning as one of the last steps.

Just some suggestions for continuous improvement.