APR Downpipes
 

DSC04659.JPG DSC04660.JPG DSC04666.JPG DSC04667.JPG
DSC04663.JPG DSC04668.JPG DSC04670.JPG DSC04661.JPG
DSC04673.JPG DSC04672.JPG DSC04671.JPG

 

I have since swapped the testpipes in and have a noticeable HP improvement when combined with APR's testpipe software program:

dsc00024.jpg dsc05294.jpg dsc05295.jpg


I've also noted power improvements on the dyno and at the drag strip with Exhaust Dumps/Cutouts.

Here's an old vs new Downpipe Comparison