
Shipping Estimate
USA
- USA
- CAN
- USA
- CAN
Ships within 48 hours · Estimated delivery Jul 7 - Jul 12
For Your Every Summer RSVP, with Code: SUMMER15
Description
boost leash bump box Boost Leash Electronic Pulse Bump BoxPulse Bump Box Combo by Leash Electronics Always Kept In Stock Ready To Ship At On 3 Performance For The Quickest Shipping PULSE COMBO OPTION WITH THIS KIT DETAIL: Pulse Leash push button staging system. Staging system designed to help with consistant staging of high powered turbocharged race cars. No more need for extra braking to prespool a car anymore. No need to apply extreme, uncompfortable pressure on you brake peddle. Allows you to be much more
Pulse Bump Box Combo by Leash Electronics
Always Kept In Stock Ready To Ship At On 3 Performance For The Quickest Shipping
PULSE COMBO OPTION WITH THIS KIT DETAIL:
Pulse Leash push button staging system. Staging system designed to help with consistant staging of high powered turbocharged race cars. No more need for extra braking to prespool a car anymore. No need to apply extreme, uncompfortable pressure on you brake peddle. Allows you to be much more compfortable in you racecar and focus more on cutting good lights. With this controller you can prestage your car then press your transbrake button and start prespooling. When you are ready to go in full stage you simply press and release a secondary button 2-3 times which pulse the ground on your transbrake solenoid and allow you car to ease into the beam. Note this applys no extra wear on your transmission!! Unit can be set to be as sensitive as you want. There is also a feature that no other unit has. There's an auto pulse setting. Purpose of this is that if you have your sensitity set really soft and it takes more pulses to move the car into the beams you can set the autopulse to pulse more times with each button push. So if it takes 3 button pushes to move your car into the beam due to having your sensitivity set soft you can set the auto pulse to pulse 3 times for the first button press. And after the first button push it then will pulse once per button push. So you only have to press your pulse button 1-2 times. This is a fine tuning feature. You can also hold the button down and is will rapid pulse. So this gives you 3 different control strategies.Free shipping to all 50 USA States
Shipping Notes
- Free Standard Shipping on $100+ Orders to the USA.
- Except Preorder products are shipped in 48 hours.
- Delivery to the USA:
- Standard Shipping : 3-10 business days
- If time is of the essence, please consider selecting expedited delivery for faster service.
Exchange/Return Notes
- We offer a 30-day return/exchange service after receiving.
- Final sale items are not eligible for returns or exchanges.
- To process your return/exchange, please contact us at [email protected]
- Please click here for more details>>> Return & Exchange Policy
4.9 ★★★★★
Based on 636 reviews
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Product Reviews
★★★★★ 5
Nice Fit
Color: Black, White, Light Gray, Size: 3X-Large
I picked this up looking for something simple but clean, and it delivered. The fit is comfortable, the material feels solid, and it looks good without needing much effort. It’s one of those pieces you can throw on and still look put together.
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Reviewed in the United States on March 29, 2026
★★★★★ 4
Good value, soft and comfortable
Color: Black, Army Green, Light Gray, Size: 4X-Large, Color: Black, Army Green, Light Gray, Size: 4X-Large
Initial thoughts are very positive with this 3 pack shirt set. The green is similar to an OD military green and the black and gray are standard color shades. Material is soft and sizes are true to size. The mock turtleneck isn’t too tight but may still be a little annoying to some people. I do question the amount of spandex in these shirts. Tag says 5% but these shirts are extremely stretchy and feels like a higher spandex content. It’s also a little tough to figure out which way is the front of the shirt. Visually rhe front does have a lower collar line than the back but would still be nice to have a brand tag printed in the back of the shirt for quicker identification.
Overall for roughly $12 a shirt these are a good choice for everyday wear. I will update rating if these shirts fail to meet expectations after further use.
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Reviewed in the United States on April 8, 2025
★★★★★ 5
👍🏻
Color: Black, Army Green, Light Gray, Size: 5X-Large
Weirdly thick material, I wasn’t a fan but it’s a good sleep shirt
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Reviewed in the United States on May 28, 2026
★★★★★ 5
Just what I wanted.
Color: Black, Navy Blue, Wine Red, Size: 5X-Large
These may have just become my standard shirt to wear. Feels good whether tucked or out. Drapes well and fits well. So far, I can see it adjust to the different undershirt I may wear. Will probably order another set in other colors and a back up set of the basics because they will get worn a lot.
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Reviewed in the United States on July 17, 2025
★★★★★ 3
Its alright
Color: Black, Size: 5X-Large
True to size per the size chart. The fabric is soft but it it feels cheap to me. It attracts lint but you can brush it off easily so its not the cheapest material I've dealt with. Also, it is opaque (not see through).
There is no front/ back indicator either which is indicative of a cheap shirt in my opinion. Would be friendly for tag sensitive people (to stay positive).
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Reviewed in the United States on April 14, 2026