The flange inlets are much smaller of the Weapons-Rice headers. That's a very bad sign.
The MSDS ones need to be touched up to match the stock exhaust ports. Though maybe MSDS made them larger in retrospect since I got my set.

The W-R headers do not copy the pulse matched primary lengths of the MSDS headers. You can easily see the primaries are not the same length. That is a bad error on their part. They can't even copy something correctly.

I agree the weld quality on the W-R headers sucks. Then again exterior looks aren't everything as long as it does not leak. However looking at the interior of the Y-pipe showed the inside is as bad as the outside. That can mean possible slag and weld through in the airflow.


Not surprising no one touched my main problem area about installing uncoated SS headers since there is no defense point for that glaring issue.

2000 SVT #674 13.47 @ 102 - All Motor! It was not broke; Yet I fixed it anyway.