Good quality sticker and even better packaging. Came in a nice firm envelope to protect the sticker
XDP Performance Valve Springs and Retainer 2001-2016 GM 6.6L Duramax
$696.95
Unit price
/
Unavailable
This product cannot be shipped to these states/provinces: CA
The XDP Performance Valve Springs and Retainer Kit XD386 are a perfect upgrade for your modified 2001-2016 GM 6.6L Duramax. Camshaft upgrades and other modifications that increase boost require more valve control.
The XDP Performance Valve Spring feature a conical design for better valve control than a standard straight spring. The conical design also allows for smaller and lighter spring retainers. Each spring undergoes a stress relief process and is computer load mapped, to ensure quality and long-term reliability.
Each spring is matched within 1 lb of seat pressure to ensure consistency. Sold as a complete set with valve springs, retainers, and locks. Each kit is backed by XDP's 1-year unlimited mileage warranty.
Features:
- 125 Lb. Seat Pressure
- Conical Spring Design
- Performance Valve Spring Kit
- Essential For Elevated Boost Levels
- Complete Set (Springs, Locks and Retainers)
Specifications:
- Installed Height: 1.610 inch
- Installed Pressure: 125lbs
- 210lbs at 1.110 inch
- Coil Bind: 1.050 inch
Customer Reviews
Overall rating: 4.8 / 5 from 1499 reviews.
Literally both hoodies all the time!!! Nice and heavy! Great for cold weather days!! Thanks guys!!
Enjoyed being involved in the giveaways. And seeing the content. Above all the trucks they are putting out are epic
“BMT#2” - Build My Truck - Choose $30,000 In Work To Your Truck! Or take $30,000 in CASH!
Everything was absolutely perfect. No issues delivered in a timely manner. The packaging was great. I highly recommend FSD for all your diesel truck parts. Kevin is a standup gentleman and will do everything he can to go above and beyond to satisfy each and everyone of his customers. Thanks Kevin and everyone @FSD.
Hoping I win something I’ve wanted a Cummins my whole life and I love dodge trucks please give me a win for being a member fro a long time now
it's a great hat
Just recently bought it hopefully will make it to and fp event
I'm totally pleased with my purchase and all the up grades that I've done to accommodate the FSD Heat Exchanger. Everything is working good and if i could i would add another one and also add a coolant bypass.
Awesome
“BMT#2” - Build My Truck - Choose $30,000 In Work To Your Truck! Or take $30,000 in CASH!
Awesome giveaways hope to win one day
Love the products
“BMT#2” - Build My Truck - Choose $30,000 In Work To Your Truck! Or take $30,000 in CASH!
Awesome products
Great company to support and has great quality products!
Fits great
….
“BMT#3” - Build My Truck - Choose $30,000 In Work To Your Truck! Or take $30,000 in CASH!
Amazing
“BMT#2” - Build My Truck - Choose $30,000 In Work To Your Truck! Or take $30,000 in CASH!
love it
Love the shirt, so comfortable
Fast shipping definitely buy again
Great
Love all the content!
Everything went sweet by order. I got it back and a reasonable amount of time. Love the product. Good quality shirt, one of my favorites. I enjoy your videos and your vehicles.Keep up to good work and all the customizing.More custom the better
Amazing product!!! Great addition to my engine bay
Excellent
I love it. It fits amazing in our 2020 Dodge and our 2024 GMC.
Nothing but Quality on my daily’s keys and it’s not uncomfortable in pocket
Love it
My Lil 10mm buddy found him a nice warm comfy place to hangout!!!
Love the gear
Don’t get no better than FSD
Shipped and arrived at my house in 2 weeks
Love your products. 🤘🏻
Loving this shirt
Love it!💯👍
Sticky sticker sticks well
good
Buy a lot for you guys for my customers and my own personal diesels truck
Loving this shirt
Fits amazingly
Awesome products
Customer Reviews
Overall rating: 4.8 / 5 from 1499 reviews.
Good quality sticker and even better packaging. Came in a nice firm envelope to protect the sticker
Literally both hoodies all the time!!! Nice and heavy! Great for cold weather days!! Thanks guys!!
Enjoyed being involved in the giveaways. And seeing the content. Above all the trucks they are putting out are epic
“BMT#2” - Build My Truck - Choose $30,000 In Work To Your Truck! Or take $30,000 in CASH!
Everything was absolutely perfect. No issues delivered in a timely manner. The packaging was great. I highly recommend FSD for all your diesel truck parts. Kevin is a standup gentleman and will do everything he can to go above and beyond to satisfy each and everyone of his customers. Thanks Kevin and everyone @FSD.
Hoping I win something I’ve wanted a Cummins my whole life and I love dodge trucks please give me a win for being a member fro a long time now
it's a great hat
Just recently bought it hopefully will make it to and fp event
I'm totally pleased with my purchase and all the up grades that I've done to accommodate the FSD Heat Exchanger. Everything is working good and if i could i would add another one and also add a coolant bypass.
Awesome
“BMT#2” - Build My Truck - Choose $30,000 In Work To Your Truck! Or take $30,000 in CASH!
Awesome giveaways hope to win one day
Love the products
“BMT#2” - Build My Truck - Choose $30,000 In Work To Your Truck! Or take $30,000 in CASH!
Awesome products
Great company to support and has great quality products!
Fits great
….
“BMT#3” - Build My Truck - Choose $30,000 In Work To Your Truck! Or take $30,000 in CASH!
Amazing
“BMT#2” - Build My Truck - Choose $30,000 In Work To Your Truck! Or take $30,000 in CASH!
love it
Love the shirt, so comfortable
Fast shipping definitely buy again
Great
Love all the content!
Everything went sweet by order. I got it back and a reasonable amount of time. Love the product. Good quality shirt, one of my favorites. I enjoy your videos and your vehicles.Keep up to good work and all the customizing.More custom the better
Amazing product!!! Great addition to my engine bay
Excellent
I love it. It fits amazing in our 2020 Dodge and our 2024 GMC.
Nothing but Quality on my daily’s keys and it’s not uncomfortable in pocket
Love it
My Lil 10mm buddy found him a nice warm comfy place to hangout!!!
Love the gear
Don’t get no better than FSD
Shipped and arrived at my house in 2 weeks
Love your products. 🤘🏻
Loving this shirt
Love it!💯👍
Sticky sticker sticks well
good
Buy a lot for you guys for my customers and my own personal diesels truck
Loving this shirt
Fits amazingly
Awesome products
