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Features & Product Details
This is Tial’s Yellow Blow Off Valve Spring. This is a direct replacement spring that is currently installed in your Tial Blow Off Valve. The pressure spring is determined by the amount of vacuum your motor has at idle, and does not correlate to boost pressure.
In the Alpha Q and 50mm blow off valve, the yellow spring rate measures at -12 PSI (-22 and -23 in/Hg), and the engine vacuum readings are at -22, and -23 in/Hg.
For the Q blow off valve, the yellow spring rate measures at -11 PSI (-22 in/Hg), and the engine vacuum readings come in at -20, and -21 in/Hg.
RallySport Guarantee - 30 Days
Items that are covered under the RallySport Guarantee offer a 30 day no questions asked return policy.
RallySport Guarantee items may be returned within 30 days of the original invoice date and must include all the original parts and contents for a refund.
The RallySport Guarantee does not apply to products that have been modified, damaged, misused or abused. All returns require an RMA (Return Merchandise Authorization) Number, and freight charges are strictly non-refundable. For more information regarding our freight refund policy, please refer to our return policy page found HERE.