PLM 4-1 Hood Exit Race Header - B-series

PLM 4-1 Hood Exit Race Header - B-series

Private Label MFG Power Driven B-Series hood exit race header (4-1 Megaphone) features a true 4-1 Megaphone merge to create equal exhaust flow. This header delivers the best peak horsepower gains while utilizing a 2 piece design. This is ideal for all forms of competition; Autocross, Drag racing and road racing.

Recommended for 1.8-2.2L engine displacements.


  • Made of 304 Brushed Stainless steel(
  • Hand TIG Welded
  • 02 extension needed
  • Modifications required for A/C & P/S usage
  • CNC-ed machined manifold flange
  • One year warranty
  • 18G on the 304 S/S ; measured at .049" to .050"
  • OEM spec header gasket included
  • Exhaust heat shield trim included
  • Pre-assembled (two piece design)
  • Half-core radiator must be used with a slim fan
  • For off-road use only  - not carb legal in CA.

Vehicle Applications: 88-91 Civic/CRX (B-swap + traction bar a must), 92-00 Civic (B-swap), 93-97 Delsol (B-swap), 90-93 Integra (traction bar a must), and 94-01 Integra.

This is a Race Only product that is to be used solely for racing competition. It cannot be used on vehicles that are operated on public streets, roads or highways. Its use is limited to closed-course and open-course racing that is formally sanctioned by a recognized racing organization. Any other use, including recreational off-road use, could be in violation of local, state and federal laws.

    PLM 4-1 Hood Exit Race Header - B-series

    Regular price Sale $598.00
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    Free standard shipping applies to this item within the continental United States. Orders shipped to Alaska, Hawaii, Virgin Islands, Canada, Puerto Rico, Guam, and PO/APO/FPO boxes are subject to additional shipping charges.
    Ships: 1-5 business days
    This is an estimated ship date once your order is placed from JHPUSA. Ship dates do not include weekends and holidays.
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    Cancer & Reproductive Harm
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