GYTR High Compression Piston
GYTR High Compression Piston

$189.85 - $230.39
10% Off - Save up to $25.60

Description See Also: 2 Reviews 14 Questions Fitment Part Numbers
Item #GYT000K

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2 Reviews
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All Reviews
Verified Purchaser
Durability 5/5 Performance 5/5 Power 5/5 Style 5/5
Best Purchase Ever

best performance part for my quad

Mill Creek WV
Durability 4/5 Ease of Installation 3/5 Performance 5/5 Power 5/5 Style 4/5
A Must Have

Just put this in my 2009 YZ250F an right after I got the bike back together and running I could tell a huge difference in the power. It almost threw me off the back because I wasn't expecting my bike to accelerate that much faster. The only down side is the higher cost of the gasoline you have to run, but if your serious about racing this is a must have!

14 Questions
Answered:   12
Not Yet:   2
motodad
Q: I just put a gytr high compression piston and gytr cams and my bike is running to lean and I can't find any mapping for this and I need to break my bike in this weekend thank's for the info
20 days ago
DaveGearhead
Top 10
20 days ago
A: You did not mention what Fuel Mapping tool you are using to remap your bike. Please contact the manufacturer of your fuel mapping tool for the correct map.
Highlands1
Q: I have a 2004 yfz450 that has stage 2 and all kind did stuff if I get this piston could I run pump gas or 93 in it
3 months 20 days ago
robert
Top 10
3 months 20 days ago
A: I would recommend contacting your engine builder for octane questions referring to aftermarket performance. High compression pistons can need higher octane dependent on what is all done to the engine.
ThejaziJ
Q: I have an 04 YFZ 450 limited edition with just an exhaust and header. also is has a dyno jet injected kit. how much will this piston put me up to?
4 months 23 days ago
Will it keep in 450 cc ?
David
Top 10 Contributor
4 months 23 days ago
A: You're cc will stay at 450cc until you get a big bore kit. This piston is for bikes that run 100 octane or higher gas.
Alovett97
Q: I Have A 2016 yfz 450r With DYNOJET PROGRAMMER, STAGE 2 hot cams , want to put a bigger piston . Does it matter if this is a gytr pistion ?
Over 7 months ago
Is This a 14.1 pistion
David
Top 10 Contributor
Over 7 months ago
A: Compression ratio is 13.2:1 for your 2016 Yamaha YFZ450R.
VroomTrain
Q: GYTR recommends a new oil sprayer for my 2015 250f, can this be installed without splitting the cases?
1 year 4 months ago
Matt122
Q: GYTR High compression piston
1 year 4 months ago
I,trying to this and I want to do a full rebuild and to a two-stage cam on it would I have to re-shim it
Johnson
Q: Would I need to get a programmer to run this piston in a yfz 450r?
Over 3 years ago
MotoSportExpert
Expert MotoSport Staff
Over 3 years ago
A: Most likely for optimum performance you will need to reprogram your YFZ450R when installing the GYTR High Compression Piston.
Yamy250f
Q: Would it be bad to run higher than 100 octane fuel with this piston or do I need to run 100
Over 3 years ago
I currently use 110 octane race fuel for the setup I have now and it is easy for me to get. Would I have to switch to 100 octane?
MotoSportExpert
MotoSport Staff Expert
Over 3 years ago
A: The GYTR High Compression Piston Requires use of minimum 100-octane racing fuel.
BigTRanch
Q: Will this piston fit a 2014 YZ450
Over 3 years ago
MotoSportExpert
MotoSport Staff Expert
Over 3 years ago
A: No, unfortunately we do not have the GYTR High Compression Piston for your 2014 Yamaha YZ450F at this time.
Jensen
Q: Can i use 98octane?
Over 3 years ago
Can i use 98octane insted of 100octane? And how much hp can I expect to gain on my 2013 yz250f?
MotoSportExpert
Top 1 Contributor
Over 3 years ago
A: It is always recommended to use Premium fuel with a GYTR or any other brand High Compression Piston. Depending on the compression ratio and other factors, you may need to use a mix of race gas to eliminate detonation.

As a general rule of thumb, a higher compression piston will give you more low end power in trade for higher RPM power.
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Fitment
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See Fitments
# Part Numbers
Product Variant Manufacturer Part #
GYTR High Compression Piston 17D-E16A0-V0-00
GYTR High Compression Piston GYT-5D305-00-00
GYTR High Compression Piston 1SLE16A0V000
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