Dune Goons 99mm Big Bore & Stage 3 Cam Kit - Honda TRX450R / TRX450ER (2006-2009)
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- 30-day hassle-free returns
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Turn your TRX450R or TRX450ER into a 477cc ripper. The Cylinder Works 99mm big bore kit comes with a forged Vertex piston and gaskets, and the Hot Cams Stage 3 camshaft is ground for big bore and stroker motors to pull hard through the mid-range and top end. Save 10% over buying them separately.
✓ Fits:
- 2006-2009 Honda TRX450R
- 2006-2009 Honda TRX450ER
✓ Features:
- Cylinder Works 99mm big bore cylinder kit, 477cc (500cc with a stroker crank)
- Bolts on like stock with no machining
- Hot Cams Stage 3 camshaft built for big bore and stroker builds
- CNC-machined 8620 billet steel cam, case hardened
- 10% kit savings vs. buying each part on its own
✓ What's Included:
- (1) Cylinder Works 99mm Big Bore Kit (0931-0175): cylinder, piston kit, gaskets
- (1) Hot Cams Stage 3 Camshaft (0925-0084)
Note: Rejetting is required with a big bore and cam. Closed course competition use only.
Ships fast from DuneGoonShop!
📦 Shipping Information
In-stock items ship next business day. ModQuad parts dispatch Monday through Thursday.
Made-to-order and custom powder coat items show their lead time at the top of this page, right next to the truck icon. These are built fresh for you, so timing varies by brand and current backlog.
Need something by a specific date? Call us at 541-668-7503 before ordering and we will check stock and ETA on that exact part. We can often point you to an in-stock alternative from another distributor.
Questions? Contact us, we respond within 24 hours.
