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The ALTA Blow Off Valve Spring Upgrade is a simple, cost-effective performance enhancement for your factory BOV. Designed specifically for MINI Turbo models, including Cooper S and JCW variants, this drop-in spring increases boost retention between shifts, reduces turbo lag, and improves overall responsiveness—all without replacing the entire valve assembly.
Constructed from heat-treated 17-7 stainless steel and rated for over 7 million cycles, this spring upgrade holds and vents boost pressure effectively, tested up to 40 PSI. It delivers reliable performance under demanding conditions while preserving the electromechanical function of your OEM blow-off valve.
Key Features:
Optimized Spring Rate – Holds more boost between shifts without compromising valve operation
Heat-Treated 17-7 Stainless Steel – High strength, long-lasting material rated for 7M+ cycles
Improves Turbo Response – Reduces turbo lag and maintains boost pressure more efficiently
Cost-Effective Upgrade – A fraction of the price of full BOV replacements
DIY-Friendly – Installs in under 30 minutes with basic tools
Tested to Withstand 40 PSI – Ensures durability even under high-performance conditions
Backed by ALTA's 5-Year Warranty
Vehicle Fitment:
2007–2013 MINI Cooper S (R56)
2009–2013 MINI Cooper JCW
2008–2013 MINI Clubman S
2008–2013 MINI Cooper Convertible S
What’s Included:
(1) ALTA Blow Off Valve Spring
Step-by-Step Installation Instructions
ALTA Performance Decal
We are open Monday-Friday from 8am-6pm EST
Yes, customers located in and around the the Piedmont area are welcome to pick up their items from our retail location during normal business hours. Our address is:
Elite Race Fab
1514 Holbrook St Suite D-F
Greensboro, NC 27403
Elite Race Fab offers free ground shipping & handling to our retail customers within the lower 48 contiguous United States on most orders totaling $159.99 and higher, when the item being purchased is not a Freight/LTL item! Orders under $159.99 will be subject to a nominal $13.99 Flat shipping charge. Some exceptions and/or exclusions apply, in those scenarios you will be advised of any additional charges in the item details/description stating shipping exclussions/freight shipping required etc.
In regards to expedited and international shipping each order will need to be quoted on a case by case basis. You can obtain a quote two ways:
- From your shopping cart select "Request a Quote" prior to placing your order. We will review your proposed order and promptly respond with shipping estimates.
- Complete your order ahead of time indicating either expedited or international shipping during the checkout process. We will promptly determine shipping rates for your order and email you for approval and additional payment.
-Give us a call and we can ensure your item is shipped right then, to ensure you have it in time for your deadline.
We have been committed to offering all of our customers the lowest pricing throughout our website day in and day out. We value your business so much that we go a step further than our competitors. We use a third party software that proactively monitors all our competitor's websites/pricing so that we can make adjustments accordingly if needed to have the lowest prices. Thats right, no need to spend hours searching for the lowest prices, as ours will be the lowest.
As far as price matching, we dont want to write a check we cant cash, but we certainly want to earn your business. With that said, we will go above and beyond to match our competitor's pricing when it is needed. Simply email us, click the live contact button, or give us a call and be sure to have a link to our competitor's site and please factor in any shipping and handling their website will be charging. We will then ensure you get the lowest price, and either match or beat their pricing.
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