Exhaust

PP-Y450-MX

'04-'09 YFZ450 MX Pipe Kit 

YFZ 450 exhaust kit includes a stainless header, muffler with turn down end cap, and jet kit with titanium needle.

$507.95

'04-'09 YFZ450 Pipe Kit 

YFZ 450 exhaust kit includes a stainless header, muffler with 16 discs, and jet kit with titanium needle.

YFZ 450 exhaust kit includes a stainless header, muffler with 16 discs, jet kit with titanium needle, and Pro Design Pro Flow foam air filter.

YFZ 450 exhaust kit includes a stainless header, muffler with 16 discs, jet kit with titanium needle, and Pro Design Pro Flow K&N air filter with Outerwear.

YFZ 450 exhaust kit includes a stainless header, muffler with 16 discs, jet kit with titanium needle, and Fuel Customs intake system.

YFZ 450R exhaust includes a stainless header and muffler with turn down end cap.

YFZ 450R exhaust kit includes a stainless header, muffler with turn down end cap, and Pro Design Pro Flow foam air filter.

YFZ 450R exhaust kit includes a stainless header, muffler with turn down end cap, and Pro Design Pro Flow K&N air filter with Outerwear.

Turn down tip includes 6 stainless steel bolts.

This turn down tip CT sonic pipe, and any pipe that uses the 4" Supertrapp disc System.

Intake

$161.45

System includes a high horsepower intake, Fuel Customs K&N type air filter, and Outerwear. The system allows the stock air box to be used or eliminated. 

Big Bore Kits

     Cylinder Works Big Bore Kit

     '04-'09YFZ450 468cc Big Bore Kit

     Kit includes: New Cylinder Works 97mm big bore cylinder, Vertex Forged 12.5/1 piston kit, and Cometic top-end gasket set.

        Cylinder Works Big Bore Kit 

JE PERFORMANCE PISTON KIT 13/1

     '06-'09 YFZ450 470cc Big Bore Kit

     Kit includes: New Cylinder Works 97mm big bore cylinder,   JE  Forged 13/1 piston kit, and Cometic top-end gasket set.

                                                                 Cylinder Works YFZ Cylinder Kit

     '04-'05 YFZ450 Cylinder Works Cylinder - 95mm Standard Bore with Vertex Forged 12/1 and a top end gasket set.

     Cylinder Works YFZ Cylinder Kit

     '06-'07 YFZ450 Cylinder Works Cylinder -  95mm Standard Bore  Vertex Forged 12/1 and a top end gasket set.

Engine Components

Cylinder bore and replate (stock cylinder) or aftermarket cylinder required.

Available sizes: A (std), B (+.01), and C (+.02).  

Available sizes: A (std), B (+.01), and C (+.02).  

Cylinder bore and replate (stock cylinder) or aftermarket cylinder required.

 Cylinder bore and replate (stock cylinder) or aftermarket cylinder required.

Available sizes: A (std), B (+.01), and C (+.02).  

Main bearings not included. 

Main bearings not included.

Main bearings not included.

Race profile designed to increase mid to top-end performance. Exhaust cam can be retarded 1 tooth. 

Less expensive and more durable than stock. Requires valve spring kit part #EC-KW-80-80206.

$38.15 ea

Requires valve spring kit part #EC-KW-80-80206.

Hard coating allows the rod to spin more freely and prevents galling which the YFZs are notorious for. Fits JE, CP, and Wossner pistons. Wrist pin dimensions: 51.15mm/2.014" long X 20.00mm/0.787" outside diameter. 

Clutch

Shop Services

CT Racing has done significant amounts of flow bench and dyno testing to offer you the best port layout for your application. We highly recommend getting a valve job at the same time the head is being ported. Our CNC valve job ties in with the port work to offer extremely effective flow numbers.

Quality valve job. Seats not included.

The 5 angle radius Race valve job significantly raises the flow characteristics at low valve lift and definitely shows a horsepower increase throughout the useable power curve. Seats not included. 

The 5 angle radius Race valve job significantly raises the flow characteristics at low valve lift and definitely shows a horsepower increase throughout the useable power curve. The 5 angle valve job really shines on big valves as the seat diameter is opened up all the way into the aluminum casting, blending to the port work. Adding +1mm valves to a modified engine package helps the mid to top-end horsepower. Most aftermarket hi compression pistons are clearanced for +1mm valves. Seats not included.

Direct plug in performance: 4 programmable timing curves, programmable rev limiter, external curve selector switch, plug-in module replacement, and more.

Direct plug in performance: easy to install, increased throttle response and acceleration, includes "dyno proven" ATV specific map database, user friendly software, and more.

Automatically monitors and adjusts fuel mixture while you ride. For use with '09 and up Power Commander V only.

Carburetion

YFZ450 R&D Power Bowl

The R&D Power Bowl improves throttle response, by pushing more fuel through the accelerator pump, it also pushes fuel for a longer duration, as compared with the stock system. It also eliminates the dreaded bog that happens on hard landings, or in the whops.  The R&D Power Bowl includes the R&D Power Pump.

Features include: adjustable leak jet, anti-cavitation chamber, and stiffer detent spring.

YFZ 450 R&D Power Pump (left side adjustable leak jet)

Improves throttle response, by pushing more fuel through the accelerator pump, it also pushes fuel for a longer duration, as compared with the stock system. If your not a big jumper and you just need to get better throttle response, the R&D power pump is all you need.

Features include: adjustable leak jet, anti-cavitation chamber, and stiffer detent spring

Controls

These are the best off road bars money can buy. Bars come with three different elastomers to get the proper cushioning for your type of riding along with a cross bar pad in your color choice of blue, grey, or red. A 1-1/8" bar mount kit is required.

Tag T-2 CR High Bend 1-1/8" Fat Bars with Bar Pad

Bars are available in black or silver and bar pads are available in black, blue, or red. A 1-1/8" bar mount kit is required.

Tag Universal 1-1/8" Bar Mount Kit

This is a clamp set than converts your stock 7/8" bar clamp to the 1-1/8" Fat Bar set up. Can be used with any brand 1-1/8" bars.

Kit includes hand guards and mount kit. Hand guards are available in blue/black, black/black, silver/black, white/black, yellow/black, and blue/silver.

Brakes

Available in black, blue, clear, green, red, or smoke. Some colors and lengths may need to be special ordered.

Available in black, blue, clear, green, red, or smoke. Some colors and lengths may need to be special ordered.

Can be used with any 3/4" or 1" diameter A-arm. Available in black, blue, red, or silver.   

Chassis

 Add $50.00 for adjustable caster.

 Add $50.00 for adjustable caster.

 Add $50.00 for adjustable caster.

Bar mount perch kit not included.

Bar mount perch kit not included.

$69.95

Axles

This axle is a recreational level axle that is twice the strength of the stock axle. It's a cost effective choice when reliability is a prime concern.

The Eliminator axle used for all forms of racing and high performance applications. Many of the models come with the patented Posi•Lock system which removes threaded sections from the flexing area of the shaft (a source of crack generation).

The X-33 axle uses the same superior material and heat treating as the Eliminator. The unique difference is in the design of the wheel hub mounting area. Standard design ATV axles neck down to about 1" in diameter. A splined wheel hub slides onto the axle shaft and is retained with a hex nut. As all ATVer's know, hubs loosen frequently. The X-33 changes all that. The wheel hub is clamped solid and driven by a pin on a 1-3/8" diameter shaft. This axle is rifled to reduce weight near the rotational axis of the ATV. The X-33 allows for 16 different wheel offset alternatives.

The Eliminator axle used for all forms of racing and high performance applications. Many of the models come with the patented Posi•Lock system which removes threaded sections from the flexing area of the shaft (a source of crack generation).

The X-33 axle uses the same superior material and heat treating as the Eliminator. The unique difference is in the design of the wheel hub mounting area. Standard design ATV axles neck down to about 1" in diameter. A splined wheel hub slides onto the axle shaft and is retained with a hex nut. As all ATVer's know, hubs loosen frequently. The X-33 changes all that. The wheel hub is clamped solid and driven by a pin on a 1-3/8" diameter shaft. This axle is rifled to reduce weight near the rotational axis of the ATV. The X-33 allows for 16 different wheel offset alternatives.

Graphics

$139.95

$139.95