Turbo Kit for Honda Civic B-Series (1996-2000) B16 B18 B20

For Honda Civic with a B-Series engine (B16 / B18 / B20) only — not for stock D16 1996–2000 Civics. Most USDM EK Civics left the factory with a D-series motor. Factory B16 coverage in this generation is mainly the 1999–2000 Civic Si; B18/B20 Civics are typically swaps. This kit uses a cast B-Series turbo manifold, so the head must be B16, B18, or B20.

This complete T3/T4 hybrid “street” turbo package combines a cast T3 turbo manifold, hybrid turbocharger, front-mount intercooler, boost control, wastegate, oiling hardware, and supporting fuel and cooling parts so you can put a B-Series Civic on boost without sourcing every piece separately.

On a healthy stock-ish B-Series motor, the supplier rates about ~100 hp gain at roughly 8 PSI. The same hardware is marketed as a ~485 hp–capable package at 25+ PSI — treat that as a hardware ceiling with a built engine, supporting fuel, and a proper tune, not a guaranteed dyno number. Automatic and manual transmissions are supported. Air conditioning and power steering can be retained for a streetable setup.

Why this Civic B-Series turbo kit

• Cast B-Series turbo manifold with T3 flange — street-oriented cast log (not equal-length tubular)
• T3/T4 hybrid turbo mapped for low- and high-boost street use
• 2.5" front-mount intercooler with aluminum piping and silicone couplers
• 35 mm wastegate, blow-off valve, and manual boost controller included
• Full turbo oil feed/return package, oil cooler kit, catch can, and fuel pressure regulator
• Electronic turbo timer to help manage turbo cool-down and reduce oil coking risk

Package Includes

• 1 × T3/T4 hybrid turbocharger (.50 A/R compressor, .63 A/R turbine, .57 compressor wheel trim; 3" inlet / 2" outlet; 1/8 NPT oil inlet; wet-float bearings; oil fitting gaskets and mounting studs)
• 1 × Cast turbo exhaust manifold (ported & polished, large primaries, thick T3 flange)
• 1 × Front-mount intercooler (aluminum, TIG-welded; 2.5" hot inlet / 2.5" cold outlet; thick core; low pressure drop)
• 1 × Universal 2.5" intercooler piping kit (aluminum bends/straights, silicone couplers, 16 stainless worm-gear clamps — light modification may be required for exact Civic chassis fit)
• 1 × Manual boost controller (CNC anodized aluminum, with install kit)
• 1 × Blow-off valve (with install kit; flanges installed at installer discretion)
• 1 × 35 mm wastegate (2-bolt flange style, gaskets/flanges, install kit)
• 1 × Slim reversible cooling fan (curved-blade; usable on intercooler, condenser, or auxiliary cooler)
• 1 × Electronic turbo timer (LED display, auto cool-down mode, pigtail wiring)
• 1 × Turbo oil line install package (feed & return lines, T-fitting for block/oil pressure sender, gaskets, hardware)
• 1 × Adjustable fuel pressure regulator with gauge and install kit
• 1 × Oil cooler kit (15-row aluminum bar-and-fin cooler; billet sandwich plate with 1/8" NPT sensor ports; dual braided stainless lines)
• 1 × Oil catch can with install kit
• 1 × Billet aluminum high-flow fuel filter (T6-6061, 6AN fittings, cleanable element, brackets)
• 1 × Coolant sensor bung / relocator (38 mm hose ends, clamps)

Turbocharger specs

• Flange: T3 (T3/T4 hybrid assembly)
• Compressor A/R: .50 · Turbine A/R: .63 · Compressor trim: .57
• Inlet / outlet: 3" / 2"
• Oil feed: 1/8 NPT
• Bearing: wet float, balanced

Exact Fitment — Honda Civic (B-Series)

Designed for Honda Civic applications running a B16, B18, or B20 engine (factory or swap). Primary USDM example: 1999–2000 Civic Si (B16A2). Also appropriate for EK/EJ Civic chassis with a B16/B18/B20 swap in the mid/late ’90s–early ’00s range.

• 1.6L B16 — including Civic Si / SiR / Type R B16 variants used in Civic chassis
• 1.8L B18 — Civic VTi / swap applications using B18 engines
• 2.0L B20 — Civic chassis with B20 swap

Not for stock D16 1996–2000 Civic LX/EX/HX (or other non–B-Series engines). Always verify engine code, head bolt pattern, and firewall/core-support clearance before ordering. The cast manifold bolts to a B-Series head; the 2.5" piping kit is universal and may need trimming or slight modification for a clean Civic bay fit.

Not included (plan these separately)

• Chassis-specific or custom downpipe (turbo flanges to a downpipe — most installs need one)
• Larger injectors, fuel pump, and fuel lines beyond the included FPR/filter
• ECU / engine management and professional tune
• Clutch / transmission upgrades for boost
• Oil-pan drain bung or custom oil-return fabrication if your pan isn’t set up for a turbo drain
• Cat-back / full exhaust beyond the turbo outlet

Installation notes

• Professional installation recommended. Tuning (fuel, ignition, boost) is required — this is not a bolt-on “flash and drive” kit.
• Expect fabrication time for intercooler pipe routing, BOV flange placement, wastegate dump/recirc, and gravity oil-return plumbing.
• The manifold is a cast street log, not an equal-length tubular race manifold — durable for street weight support, with different spool/power character than a tubular piece.
• Use the electronic turbo timer (or a proper idle cool-down habit) to reduce oil coking in the turbo center section.
• Stock fuel system and engine internals limit safe boost; plan injectors, pump, clutch, and engine build around your target power.

FAQs

Will this fit my 1996–2000 Honda Civic?
Only if it has a B16, B18, or B20 (factory Si or swap). Stock D16 Civics need a different approach — this cast manifold is for B-Series heads.

Is the piping Civic-specific?
The manifold is B-Series engine-specific. The 2.5" intercooler piping is a universal kit and often needs light trimming or modification for the Civic bay.

How much horsepower can this kit make?
At low boost (~8 PSI) on a stock-ish B-Series, about 100 hp over stock is the typical marketed gain. “485 hp” is the supplier’s high-boost hardware ceiling with a built engine, supporting fuel, and proper tuning — not a promised dyno result.

Is a downpipe included?
No chassis-specific downpipe is included. Plan a custom or Civic-specific downpipe from the turbo flange to your exhaust.

Does it work with automatic and manual Civics?
Yes — described as compatible with both. Clutch and transmission limits still apply under boost.