

This listing is for a TSP oversized powervalve cover to suit all 250 & 300 23-on TBI models. This includes SX, XC, EXC and XC-W models. The cover will work with stock or aftermarket pipes.
This cover will not only enhance the aesthetics of your bike, but it adds power at low throttle and low/mid revs where most riders need it most! It is ideally suited to trail riders and hard enduro riders who want smooth power delivery and maximum torque at low revs, before the powervalve opens.
Our TBI Oversize Powervalve Cover is not just bling! Its been carefully designed and tested to ensure noticeable gains at low/mid revs. It is most effective between 3000-5000 and at low throttle, adding a torquier feel to the power delivery.
Check out the dyno results on our 2024 KTM300EXC TBI shop bike. This bike is running a Medium Compression TSP head with a TSP ECU tune. Adding the Oversize Powervalve Cover further increased hp and torque down low by a noticeable amount.
Fits:
KTM SX (Motocross)
KTM XC (Cross-Country)
KTM EXC (Enduro)
KTM XC-W (Cross-Country - Wide Ratio)
Shipping of motorcycle units is only allowed for specific cases. Please contact our sales team to check eligibility and payment process.
New and unused items within the first 10 days of delivery can be exchanged or refunded. Items must be returned with all manufacturer’s packaging and placed inside an external shipping box.
Important: Anything sent back to us without an external shipping box is breaking our refund/exchange policy and will be sent back to sender without a refund.
Any merchandise which has been “taken out for a ride” is considered used and cannot be returned. We encourage you to walk on your carpet if trying boots, or to wear your helmet indoors before heading out on the bike.
Any part which has been installed or shows signs of attempting to be installed on a vehicle is non-returnable.
The cost for return shipping is a flat $25 + tax and will be deducted when we issue your refund.
If you’d like to make an exchange, you will need to place a second order for the new item.
Certain conditions and exceptions can be applied to our return policy. If you're unsure if your product qualifies, give us a call. There are certain items that we cannot accept as returns. These include:
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