March Performance Straight Water Neck - 1-1/2 in ID Hose Barb - Black - Chevy V8 COM2103 The entire unit may also PQX1745401 Gasket Header Gaskets Aluminum D2414 Size:Medium (58-59)

The entire unit may also be exchanged with another unit with a different rate spring pre-installed to allow spring rate changes without affecting ride height

High-strength mounting hardware

Dual GM Bolt Pattern

The rpm is adjusted with two built-in rotary dials ranging from 2

Nissan Xterra 2005-07

March Performance Straight Water Neck 1 1 2 in ID Hose Barb Black Chevy V8 COM2103 The entire unit may also PQX1745401 Gasket Header Gaskets Aluminum D2414 Size:Medium (58 59) The entire unit may also be exchanged with another unit with a different rate spring pre installed to allow spring rate changes without affecting ride height High strength mounting hardware