Koch’s Performance

Visit Koch’s Performance for all of your snowmobile and ATV needs. Koch Performance also offers Triton snowmobile and utility trailers. You will find friendly, knowledgeable people, fair prices, and the parts and equipment you need. We look forward to meeting you!

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  • All Parts ()
  • Belly Pans ()
  • Bumpers ()
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  • Exhausts ()
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Belly Pan Boots

Belly Pans / Restoration Parts

Belly Pan Boots 1977-80 SRX These boots are an exact copy of OEM. They are made from the same type of rubber material as stock. The cost of original parts when they were available was $85.00 each NOW $125.00 per set...

Yamaha SRX Hoods

Hoods / Restoration Parts

1976 – 1980 Yamaha SRX Hoods $450.00 These are show quality hoods, available in black or white. Also available in White & Black for your 1978. (If purchased with our graphics, they will be installed at no charge)...

GPX and SRX Custom Race Pipes

Exhausts / Restoration Parts

GPX  and SRX Custom Race Pipes $450 + Shipping These pipes are custom built to Yamaha specifications from stock SRX pipes. These pipes will fit a GPX 338 and 433 as well as the SRX 340 and 440. This exhaust makes the same power as...

Piston Ring Sets

Pistons / Restoration Parts

Wiseco Piston Ring Sets High quality Wiseco Rings that fit on your stock Yamaha pistons 1976-77 SRX 440 – $30/ring+shipping 1973 SR 433 w/Chrome Bore – $15/ring+Shipping 1973 GPX 433 GYT (Kit) – $15/ring+Shipping...

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That's what I'm talking about ! ... See MoreSee Less

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A Ski Doo Carry Boose we just finished ! ... See MoreSee Less

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A Merc 250 snow Twister project we are just completing ... See MoreSee Less

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Something new this year ! We will be handing out the new "Driven " award ! Be here Saturday Dec 2nd to see who will receive it ! ... See MoreSee Less

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Has everyone seen this in the New Snow Tech( formerly Race and Rally) magazine! Pretty darn cool ! ... See MoreSee Less

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