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Description
Turbo Time USA Lightning Bolt VGT Solenoid 11-16 GM 6.6L DuramaxWhile some may have mixed feelings about Variable Geometry Turbos (VGT) they have a huge advantage over their fixed geometry counterparts in that they can dynamically adjust their "size" using an internal moving vein or a sliding nozzle. What this means, is that upon takeoff, the turbo can act like a smaller charger, but then open up as RPM and boost increases, delivering the airflow of a larger turbo. Beyond this, another big advantage to these kinds
While some may have mixed feelings about Variable Geometry Turbos (VGT) they have a huge advantage over their fixed geometry counterparts in that they can dynamically adjust their "size" using an internal moving vein or a sliding nozzle. What this means, is that upon takeoff, the turbo can act like a smaller charger, but then open up as RPM and boost increases, delivering the airflow of a larger turbo. Beyond this, another big advantage to these kinds of turbos is that they can essentially be "tuned" due to their electronic solenoid, and up until the point where Turbo Time USA developed their Lightning Bolt Performance VGT Solenoid......no one had done so yet.
The Lightning Bolt Solenoid is designed to help you get the most out of your turbo (especially upgraded turbos) and diesel driving experience without artificially manipulating your system to operate more like a gas vehicle. Forcing a diesel to perform more like a gas vehicle is often experienced with products like throttle controllers, modules, or specific tuning that alters VGT vane percentages and/or causes the transmission to regularly downshift raising rpms to achieve power response.
Some of these application combinations may reduce the effective benefits or even conflict with the Lightning Bolt Solenoid operation triggering a CEL.
NOT recommended with products like “pedal commanders” or “throttle boosters” that manipulate throttle system percentages that often yield an artificial “in the seat” response feeling while reducing efficiency.
NOT recommended with tuning that restricts VGT vane percentage ranges and/or causes the transmission to downshift when applying throttle for demanded response by increasing engine rpm instead of utilizing low-end boost production from the turbocharger in order to generate power as originally intended for diesels.
TUNING - Some tuning especially with emissions may manipulate the vane position percentage range that can conflict with the Lightning Bolt operation which is intended to operate with full range. This can lead to a CEL and trigger codes such as "over-boost" or "exceeding learn limit".
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Exchange/Return Notes
- We offer a 30-day return/exchange service after receiving.
- Final sale items are not eligible for returns or exchanges.
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4.1 ★★★★★
Based on 6 reviews
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Product Reviews
★★★★★ 3
Right fit
I love this shirt it was nice and bright when I got it after a few wash it started to fade out a bit was a perfect fit for a medium built person 5’7 I still would recommend this product they are really nice and thick
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Reviewed in the United States on September 14, 2025
★★★★★ 5
Excellent value and has saved me from the sun!
Fit Type: Regular Fit, Color: White, Size: Large
I ordered this large mans shirt because it was 100% cotton and long sleeve. I am a woman and use it to protect myself from the sun walking my dog, very stiff at first, but comes out with several washes. I love the shirt!
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Reviewed in the United States on June 9, 2026
★★★★★ 4
NICE Shirt that SHRINKS!!
Fit Type: Regular Fit, Color: Blue, Size: X-Large
Loved this shirt right out of the package. Put a little steam pressing on it and it was perfect. Has a thicker softer feel than most casual dress shirts. Ordered XL with the "regular" fit and it could be worn tucked or out without it looking overly blousy. SADLY, after a first wash on cold and tumble dry low, and pulled it out early and it shrunk by almost a full size!!! The sleeves, length of shirt and overall fittage shrunk so that now it fits like a snug large. I've never had a shirt shrink like this, hence, the one star off. I would have given it 2 stars off, but the original quality of the shirt is nice, just beware of the shrinkage factor. Don't put it in the dryer at all, only air dry it. I'm tempted to reorder another but just then never put it in the dryer.
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Reviewed in the United States on May 23, 2026
★★★★★ 5
Shirt worth buying several times
Size: XX-Large, Color: Anthracite Polo Stripe
Purchased another of same order and have found them to be excellent. Comfort, sizing, and quality. Can be dressed up or dressed down and they look great either way.
Worn in very hot weather and have not been oppressed by sweat. Nice. Will be purchasing more. Sizing was great. Loose and long enough to land just right over pants pocket top.
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Reviewed in the United States on June 1, 2026
★★★★★ 5
Great Quality and Comfortable Fit
Size: Large, Color: Washed Blue
I picked up the Amazon Essentials Men’s Golf Polo Shirt, and I’m really impressed. The fabric is soft, breathable, and lightweight — perfect for hot days on the golf course or casual wear.
The fit is spot-on, not too tight or too loose, and it looks sharp tucked in or out. It’s held up well after multiple washes without shrinking or losing shape. For the price, it’s excellent quality and a great value.
If you need a reliable, comfortable polo for sports or everyday wear, this one is a solid choice. Highly recommend!
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Reviewed in the United States on September 5, 2025