Arctic Cat 858 + and 600 Catalyst Performance

Arctic Cats new 858 cc engine is an upgrade we been waiting for. Terra Alps Racing has already got into the performance for this new engine kit thru the summer of 2024.

With the new engine and chassis comes getting the gremlins out of this new sled. So we been doing testing and datalogging getting it all figured out.

LARGER then 858 ?  BIG BORE...  Yes Terra Alps has been working on the new project... Shhh

930 BIG BORE ! Cylinders bored and ported, custom hone, cheater head with custom domes, and custom pistons. $3795 cdn.

Big bore kit will need a ECU tune $750 cdn.

Single pipe kit,   Pipe and  Y pipe  $1199 cdn 

Can run stock pipe kit. 

MUFFLER  $449 cdn. 

ECM flash tuning is the only way to get the mapping good, get out the lean spots for emissions, add some power, get rid of the top end fade.

ECM flash tune $750 cdn. Huge performance increases, up to 16 hp gains in mid range with good top end gains and reliability. Available for ZR, RIOT and MTN 858's

For all types of riding and add ons.

-Stock ZR and Riot 858, Tune added performance and reliability to keep pulling away from your buddies racing down the trails 

-Stock M858 Tune added performance and reliability to outclimb your buddies on the hills and continous power in the deep and steep.

-Improved Tune with exhaust added

-Improved Tune with Terra Alps custom heads for low elevations

-Improved Tune with Terra Alps custom heads for high elevation mtn riding

-Improved Tune with porting packages, custom head, exhaust added

ENDLESS Performance packages because we design and build it all !

TUNES also available for the 600 Catalyst. We designed and tested those in 2023' with our bolt on performance parts

CYLINDER PORTING for 858 and 600s  $700 cdn.

CASE PORTING  for 858 and 600s     $250 cdn.

BILLET HEAD  with custom domes $799 cdn. or $580 us approx.

CHEATER HEAD  with custom domes $700 cdn. supply your stock head or exchange

Best MUFFLER on the market, sounds great , not too loud. Adds power as it is an extension of the pipe.

Muffler lightweight for 858  5.65 lbs, not too loud $449 cdn. or $315 us 

Cooker mufflers available as well. 

SINGLE PIPE KIT !   Single pipe and high flow Y pipe   $1095 cdn.

HIGHFLOW Y PIPE    $399 cdn or $280 us

CLUTCHING  is available!

-Weights and adjustable weights

-Springs for primary and secondary clutches

-Helixs , custom angles for your ride

-Delrin washers

Call or email for more info

The 858 Fade is not fixed with just a spring!

Call 778-753-6060 or email terraalps@shaw.ca for more info.