Turbo Kit for Plymouth Laser 4G63 (1990-1994) 2.0L

Complete T3/T4 turbo kit for 1990–1994 Plymouth Laser with the 2.0L 4G63 DOHC engine. Built around a polished 321 stainless tubular manifold, a hybrid T3/T4 turbo, front-mount intercooler, stainless downpipe and a full set of supporting parts. It fits the 4G63 in the RS Turbo and RS Turbo AWD and the 2.0L DOHC RS — not the 1.8L SOHC (4G37) base Laser. A tune and fueling upgrades are required.

Why this kit

• TIG-welded 321 stainless tubular manifold with large primaries, thick T3 flange, ported and polished
• T3/T4 hybrid turbo: .57 trim compressor, .50 A/R compressor / .63 A/R turbine housings
• Mandrel-bent stainless downpipe with waterjet-cut 5-bolt flange
• Front-mount aluminum intercooler plus full 2.5" piping kit
• Boost controller, electronic turbo timer, slim fan and heat wrap included

Package Includes

• (1) 321 stainless tubular turbo exhaust manifold, T3 flange — turbo and manifold flange gaskets, bolts and hardware
• (1) T3/T4 hybrid turbocharger — oil fitting gaskets and mounting studs
• (1) Front-mount aluminum intercooler, 2.5" inlet / outlet
• (1) Aluminum intercooler piping kit: (2) 2.5" straight pipes, (2) 90°, (2) 60°, (2) 45° bends, (2) 2.5" 90° silicone couplers, (6) 2.5" straight silicone couplers, (16) stainless worm-gear clamps
• (1) Adjustable boost controller with install kit
• (1) Slim reversible cooling fan with mounting tabs
• (1) Electronic turbo timer with pigtail wiring
• (1) 10 m fiberglass heat wrap
• (1) Stainless downpipe, 2.5" inlet, 5-bolt flange
• (1) High-flow intake filter, 3" inlet
• (1) High-flow breather cap
• (1) Aluminum coolant sensor bung, 38 mm ends, with 2 clamps

Turbocharger Specs

• Type: T3/T4 hybrid, wet-float bearings, balanced
• Compressor: .57 trim wheel, .50 A/R housing, 3" inlet, 2" outlet
• Turbine: .63 A/R housing, T3 inlet flange
• Oil inlet: 1/8" NPT

Exact Fitment — Plymouth Laser

• 1990–1994 Laser RS Turbo and RS Turbo AWD with the 2.0L 4G63T
• 1990–1994 Laser RS with the 2.0L DOHC 4G63 (non-turbo — add an oil drain bung and fueling)
• Not for the 1.8L SOHC 4G37 (base Laser)
• The Laser shares its 1G DSM chassis with the 1990–1994 Eclipse and Talon; mock up the manifold, downpipe and intercooler piping before final install
• Manual or automatic transmission

Not Included

• Wastegate and blow-off valve (if your setup needs them)
• Oil feed / return lines and oil pan drain bung
• Larger injectors, fuel pump and ECU tune
• Clutch upgrade and exhaust beyond the downpipe
• Installation instructions

Installation Notes

• A tune is required. Do not run boost on the stock calibration.
• The intercooler piping is a universal 2.5" kit — expect to cut, trim and route it to your car.
• Plan a gravity-fed oil return; non-turbo engines need a drain bung added to the pan.
• Use the turbo timer or idle 30–60 seconds before shutdown to keep the turbo bearings healthy.
• About 50–100 hp gain on a healthy stock engine at 8 psi with a proper tune. The 485 hp figure is a hardware ceiling at 25+ psi with a built motor and supporting mods, not a dyno result.
• Professional installation recommended.

FAQs

Will this fit my Laser?
Yes, on 1990–1994 Lasers with the 2.0L DOHC 4G63 (RS and RS Turbo). It does not fit the 1.8L base car.

Can I keep A/C and power steering?
Most installs keep A/C and power steering; confirm clearance during mock-up.

Does it work with an automatic?
Yes — it fits manual and automatic cars with the matching engine.

How much power will I make?
Expect roughly 50–100 hp more at 8 psi on a stock engine with a tune. Higher numbers need a built motor, fueling and more boost.

What else do I need?
Oil lines, fueling upgrades, a tune and a clutch rated for the added power.