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Old 01-06-2011, 04:52 PM   #1
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2009 550 EFI H1 or 2010 450 EFI H1

Which one would you get and why? There is only $100 difference between the two machines at a dealership near me.

Thank you.
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Old 01-06-2011, 05:05 PM   #2
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ATV: '09 700 Cruiser, '09 400 TRV
2010 Mileage: 1000
2009 Mileage: 500
I'd go for the '09 550. I don't see much difference between the years so I'd go with the larger displacement. Also, I'm biased as I have a '09 550.
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Old 01-06-2011, 05:26 PM   #3
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ATV: ThunderLemon 1000
2008 Mileage: Depends upon Fa
There is an old hot rodders rule of thumb, "No replacement for displacement" Not knowing for sure since i have zero experience with either, I envision easily spending a lot more than a hundred dollars on the 450 just to get close to equal performance to the stock 550H1 which is pretty damn close to the rated HP of the 650H1 because of the EFI
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Last edited by Wyo_H1_Cat; 01-06-2011 at 05:30 PM.
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Old 01-06-2011, 07:02 PM   #4
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ATV: 2009 550H1 EFI
2010 Mileage: 650
2009 Mileage: 110
2008 Mileage: 500
2007 Mileage: 500
2006 Mileage: ?
I would spend the $100 and get the 550H1 i have a 09 550H1 and it is a great ATV you cant go wrong
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Old 01-06-2011, 07:24 PM   #5
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ATV: 2009 TCat
2010 Mileage: 600
2009 Mileage: 170
2008 Mileage: 610
2007 Mileage: 460
Another vote for the 550H1 EFI!
2009 Thundercat
Burp bottle mod
Frankenstein 3000 lb winch

Wife's atv:
2009 550 H1 EFI
///Airdam stage 1 & 2
Machined ITP SS108's
Outlaw 25" MST's
Viper Max 3000 lb winch
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Old 01-06-2011, 10:22 PM   #6
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ATV: 2009 550 TRV EFI H1
Love my 09 550. I've had it for over 2 years now with lots of miles on it, runs great. Regular maintenance and it'll do anything for you.
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2009 550 EFI H1 or 2010 450 EFI H1-my-2009-550-h1-efi-arctic-cat-034.jpg  
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Old 01-07-2011, 05:07 AM   #7
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ATV: '08 TRV 500
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2009 Mileage: 3000 km
as wyo said. There's no replacement for displacement
08 TRV 500
Custom diamond plate storage boxes | Powermadd handguards | Quadrax 2500 lbs winch | Moose Hand/Thumb warmers | Sanny circuit breakers | 26" interco swamplites on stock rims | Yuasa Battery | Sanny A-arm bushings w/ grease fittings | 2" flex lift | Snorkels | Looped crank vent mod | Custom audio setup | Arctic Cat block heater | Engine Ice coolant | Front and rear brush guard bumpers | Battery Tender jr | ///Airdam stage 1 | Speedwerx 42# stall springs | Amsteel Blue synthetic rope | UHMW hawse fairlead | UNI Air filter | Engine Brake Deleted | Xentec 6000k HIDs| 55w Halogen Reverse light | The Whoolie Shop LED's | LED high beam bulbs | Fuel filter | 3/16" Aluminum skid plate | Modded stock exhaust | Dynojet Kit-144 main-42 pilot-Needle on 3rd notch | Ride in springs

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Old 01-07-2011, 06:49 AM   #8
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ATV: TRV700H1 XT/550H1
2009 Mileage: 800

I'll have to agree with the general concensus here and say GO FOR THE 550!

The wifey has had one for close to 2 yrs now and 600mls w/o a SINGLE issue or problem.

Just so we're clear.......I DO NOT have an Arctic Cat ATV Addiction..........wellll...YES...yes I do.....

2013 700H1 TRV XT (Mine!!) - 265mls
2009 550H1 EFI (Wifey's) - 990mls
2008 650H1 TRV (gone...but not forgotten) - 2250mls
2009 250Utility 4x2 (was great!! till "The Boy" outgrew it) - 480mls
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Old 01-07-2011, 07:25 AM   #9
Considering both have the same towing rating, hauling rating and everything else, I would go for the 450. Unless you are a speed demon it will do everything the 550 will do but at a slightly lighter probably more efficiant manor. Plus nothing wrong with having a year newer bike.
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Old 01-07-2011, 07:44 AM   #10
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ATV: Wildcat Trail; 700H1
2010 Mileage: 600
2009 Mileage: 600
2008 Mileage: 350
2007 Mileage: 200
2006 Mileage: 200
Go for the 550. A little extra power never hurt anyone.
2014 Wildcat Trail XT: 29 inch Bighorns, 14 inch ITP 212, Kolpin Roof, AC Flip-up Windshield, AC Trunk Bag, 4k Viper Winch, Speedwerx Secondary Spring
2008 700 H1 SE: 28" Zilla's, Hand Gaurds, Hand Warmers, F/R Bumpers, Large Speedracks, Warn Winch, AC Gun Scabbard, AC Camo Cover, AC Chain Saw Lock, AC Cooler Holder, Eagle Snow Plow
2007 250cc
2011 150cc
2006 90cc
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