Matched set with connections
Volkswagen 337/20AE 1.8T Performance Engine Parts
- Blow Off Valve
- Camshaft
- Catch Can
- Connecting Rod
- Cooling
- Crankshaft
- Cylinder Head
- Diverter Valve
- Engine Girdle
- Exhaust
- Fueling
- Hoses
- Intake
- Intercooler
- Mounts
- Oiling System
- Performance Package
- Pistons
- Pulleys
- Software
- Sprint Booster
- Stroker Kits
- Turbocharger
- Water-Meth
Engages water-methanol system at 35PSI Adjustable from 25-50psi
Includes 2.5 gallon tank, red high temp nylon tubing, and quick-connect fittings
Upgrade your ride with the Valvetronic Designs universal valve muffler kit, a premium T304 stainless steel solution that delivers an aggressive, valved exhaust note at the click of a button
This bolt-on package pairs a high-volume K04-001 turbocharger with a smooth-bore silicone inlet hose to maximize boost response.
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Factory engine cover will not fit with the use of this inlet hose.
This product was last offered at the strikethrough price on
08-20-2026
144x20 Forged Rod with ARP 2000 hardware.
Supertech 2mm oversized piston set including 20mm wrist pins.
Triple Groove retainer manufactured with high-quality military-certified Titanium alloy, and CNC machined for a tight fit.
Supertech 1.5mm oversized piston set including 20mm wrist pins.
Quick connect union T-fitting for 1/4" Nylon
The ULTIMATE auditory upgrade for your MK4! Featuring dual 3.5" chrome tips and wrinkle black intake piping.
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This product was last offered at the strikethrough price on
05-05-2026
For cars with 19mm or 25mm PCV
For cars with 19mm PCV
Increase horsepower and torque by replacing your vehicle's restrictive factory air filter and air intake housing
CARB certified for sale in all 50 states
Includes rings, wire locks, and wrist pins - 81.5mm bore, 8.5:1 CR, 86.4mm stroke (stock)
*For use with 20mm wrist pin connecting rods*
Upgrade your ride with the Valvetronic Designs universal valve muffler kit, a premium T304 stainless steel solution that delivers an aggressive, valved exhaust note at the click of a button