HEADER-DURATEC.STOCKCAR.SILVER
Description:
After a dedicated R&D program, we have come up with what we believe is the best performing header on the market We've tested numerous variations of header from short & small to long&large primary tubes, and all were tested with different secondary lengths to try and capture the best possible powerband The long stepped primarytubes offer the best mid-range AND top-end of all the combinations we tested! In fact, once we tried these combinations of primary length, stepped tubing diameters, collector merge shape, and secondary length, this header made more power from 4000-8500rpm. than all the other combos we tried!As an extra benefit, this headersare also now silver ceramic coated inside and out for long lasting sexy good looks!
For 2L & 2.3L engines we usually go with the 1-5/8" to 1-3/4" primary version.
For 2.4L & bigger engines we usually go with the 1-3/4" to 1-7/8" primary version.