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Suzuki Hayabusa Competition Motor Services

Downs Engineering specializes in
  • motorcycle engine performance gains
  • car installations
  • horsepower increases
  • oil systems
  • exhaust systems
  • wiring harnesses
  • custom engine management maps
  • engines acquired and prepared for automotive use
  • competition engine building
  • competition cylinder heads
  • cylinder head porting and valve jobs
  • turbo-charged engines
  • engine dyno services
We provide engines from reliable legal sources. Each engine is thoroughly inspected. We do a leak down test, inspect rod bearing condition and make sure that all electrical components are correct for that year engine.
Hayabusa Motor Price List
Used Low Mileage Motor (under 2500 miles)

Good running condition, inspected by DE,

Sold as complete motor kit (not including shipping)

$3200.00 to $3800.00
Competition Wiring Harness (your wiring harness in exchange)
$250.00
Memory Tachometer
$325.95
ECM Hold Down Box and Band Clamp
$45.00
Driveshaft Adapter kit with adapter, modified spacer & nut
$150.00
Modify fuel rails for -6AN (exchange)
$75.00
Competition Fuel Pressure Regulator
$198.00
Compettion Fuel Pump
$165.00
Competition Fuel Filter & -6 Fittings
$75.00
Competition Oil Pan - Wet sump type and baffle/windage tray
$450.00
Competition Dry Sump Pump with oil pan, oil tank, pump drive and belt, single scavenge type
$2095.00
Competition Dry Sump Pump with oil pan, oil tank, pump drive and belt, dual scavenge type
$2250.00
Dry Sump Oil Tank
$410.00
Competition Oil Pressure Relief Valve
$75.00
Competition Oil Cooler
$265.00
Competition Oil Fittings 2 of (motor to cooler)
$65.00
Competition Pistons 12.5 to 1, Yoshimura
$1200.00
Competition Pistons 12.3 to 1, JE w/ rings and pins
$625.00
Competition Cams with adjustable sprockets
$750.00
Competition Valve Springs & Titanium Retainers
$330.00
34mm swirl polished stainless steeel one piece intake valves (each)
$22.00
28.5mm swirl polished stainless steel one piece exhaust valve (each)
$22.00
Competition Valve Job
$490.00
Competition Cylinder Head with big valves and gas flowed
$1795.00
HD head gaskets, base gaskets, engine kits
$125.00
HD Rod bearing special friction coating
$195.00
HD Main Bearing special friction coating
$235.00
High volume oil pump
$375.00
Carrillo Rods
$975.00
Competition Motor, Stage 1 customer's motor w/stage 1 cams and 12.3 Pistons and D/E internal modifications, 200hp
$2550.00
Competition motor Stage 2 & 3 & Turbo Charging- customer's motor
$3350.00 and up
Billet clutch basket
$440.00
Steel Billet crankshafts +5 and +7mm
$2995.00
Downs Engineering
19564 Eighth St East
Sonoma, CA 95476
707-938-1011
fax 707-935-0481
email: mdowns@downsengineering.com