When you click on links to various merchants on this site and make a purchase, this can result in this site earning a commission. Affiliate programs and affiliations include, but are not limited to, the eBay Partner Network.
I just put OBX long tubes on my '01 and absolutely love them! Hardest part for me was snapped manifold studs and getting the dip stick tube out of the block.
They will fit, but you will also need the y-pipe that goes with them. The only difference on non-PI and PI heads on the exhaust is the diameter of the exhaust ports.