PLM PLM-B-T4-TOP – Top Mount Turbo Manifold for Honda B-Series B16 B18 B20

The PLM Power Driven T4 Top Mount Turbo Manifold with Dual Wastegates is built for high-boost, high-power Honda B-Series setups. Whether you're pushing a street monster or a track car, this manifold spools big turbos quickly and delivers serious torque through the midrange, pulling strong to redline. The T4 flange and dual wastegate design support aggressive builds where control and durability are key.

KEY FEATURES

• T4 turbo flange

• Dual 44mm wastegate flanges

• 304 stainless steel construction

• CNC machined manifold flanges

• 1/2 inch thick head flange

• 8-gauge / Schedule 40 piping

• One-piece TIG-welded design

• Fully ported low-angle merge collector

• Surfaced head flange for a perfect seal

• Raw stainless steel finish

• One-year warranty

• PLM recommends using their 4-bolt flange downpipe for easy install

TECHNICAL SPECS / MATERIALS

• T4 turbo flange

• Dual 44mm wastegate ports

• Schedule 40 stainless steel runners

• One-piece design with merge collector

• Flange thickness: 1/2 inch

• Raw finish (non-coated)

INSTALLATION DETAILS

• Requires removal of A/C and power steering

• Bolt-on fitment for B-Series swapped vehicles

• PLM 4-bolt downpipe highly recommended

• Designed for high-power street and race applications

WHAT’S INCLUDED

• PLM T4 Top Mount Turbo Manifold (Dual Wastegate)

• Gaskets and hardware

FITMENT GUIDE

• Acura Integra (1990–2001) with B-Series engines

• Honda Civic (1988–2000) with B-Series engines

• Honda CRX (1988–1991) with B-Series engines

• Honda Civic del Sol (1993–1997) with B-Series engines

• Compatible Engines: B16, B18, B20

NOTES

• A/C and power steering must be removed for proper fitment

• For off-road or competition use only

• Downpipe sold separately

BRAND INFO
PLM (Private Label Mfg.) builds high-performance parts trusted by tuners and racers. Known for premium materials, precise welding, and race-proven results, PLM manifolds are a staple in the Honda performance community.