About the XS Power BIG3XS
The one-step "Big 3" upgrade kit
The one-step "Big 3" upgrade kit
If your aftermarket audio system is putting a strain on the rest of your car's electronics, you might want to upgrade your factory wiring. Rated to 350 amps, this "Big Three" grounding kit will boost your electrical system's performance.
XS Power's Big3XS kit includes heavy-duty 1/0-gauge oxygen-free copper cables that replace (or augment) your vehicle's battery ground-to-chassis wire, the chassis-to-engine block wire, and the wire connecting the alternator's positive output to the battery's positive terminal.
Another bonus is that the 8.5 mm ring terminals are already crimped to the wires, so you won't have to replace the stock grounds unless you want to improve them or double up. Extra ring connectors are included, so you'll be able to trim the wires to length and replace the terminals if needed.
The Package
The 350-amp Big3XS kit includes:
- 1 6-foot XPFLEX 1/0-gauge power cable
- 2 4-foot XPFLEX 1/0-gauge ground cables
- 8 XS Power heat shrink tubes
- 8 1/0-gauge crimp crimp terminals (already crimped on the wires)
- 10 wire clamps
- 10 zip ties
- 10 screws
What's in the box:
XS Power BIG3XS owner's manual
- One 6-foot XSFLEX 1/0-gauge power cable with ring terminals on both ends (blue)
- Two 4-foot XSFLEX 1/0-gauge ground cables (pearl)
- Two extra 1/0-gauge crimp-on ring terminals
- 2 Heat shrink terminal protection tubes
- 10 wire clamps
- Ten 3" Zip-ties
- Ten 1/2" Self-tapping screws
- Instructions on the box
Featured review
It awesome I love the improvement it has made on my car!
Robert from Harker heights, TX
Customer Q&A
Q
Do I replace the wires in the car with this or should leave them connected and just connect these on top? I figure this way there will be an extra connection on each line so maybe better?
A
Leave the original cables connected.
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REVIEWS
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XS Power BIG3XS reviews
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XS Power BIG3XS
Robert from Harker heights, TX on 4/12/2019
It awesome I love the improvement it has made on my car!
Pros: Everything was perfect
Cons: None
0 of 0 found this helpful
XS Power BIG3XS
Jason from Mountain Iron, MN on 2/25/2019
0 of 0 found this helpful
XS Power BIG3XS
Crutchfield customer from Mcminnville, TN on 6/24/2018
More than the product...excellent customer service!!!! Seriously I WAS a sonic Electronix customer....NO LONGER!!!! Crutchfield is awesome everyone super helpful and super fast shipping All shopping WILL b done at CRUTCHFIELD!!!
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2 of 2 found this helpful
XS Power BIG3XS
Joseph A. from Rockledge, FL on 5/7/2018
If you want it too last with big power don't forget this must have.
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0 of 0 found this helpful
XS Power BIG3XS
Crutchfield customer from Beloit, WI on 4/22/2018
Quality, heavy duty product. Plus, fast shipping. Can't beat that!
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0 of 0 found this helpful
Great kit
Alex from Glenview, IL on 8/29/2017
I am very impressed with the quality of this kit. The only real negative has been mentioned by other reviewers: the cable from the battery neg to the chassis could have been 6 inches long and still worked in my car. Other than that, everything is good.
Pros: High quality cables and connectors.
Cons: None
1 of 2 found this helpful
Awesome product
Jon from Texas on 8/7/2015
Positive cable was the perfect length to reach alternator to battery. Negative cse was good length to ground battery to chassis. But the other negative cable could have easily been only a foot long to go from battery to chassis. This is for my 2013 mustang.
Pros: Decent voltage increase. Grade A wire.
Cons: Set length of negative cables. Would have been very nice if it came with the fuse/holder like XS other products.
3 of 4 found this helpful
Big Three Upgrade
RT from Lithonia, Ga on 3/24/2015
Great product great price
Pros: Everything you need in one kit
Cons: N/A
3 of 3 found this helpful
Heavy duty
Rick W from San Diego, Ca on 11/7/2014
If your picky like me these lengths won't be exactly the length your specific vehicle should have. But they work just fine. It did make my voltage go up. Sometimes making your own cables is the more cost effective way. And they are the correct lengths for the application.
Pros: Good product
Cons: Set lengths
5 of 5 found this helpful
More details on the XS Power BIG3XS
Product Research
Features
Contents: The BIG3XS kit contains the following:
- Power Wire: One 6' length of 1/0 gauge multi-strand power wire in a blue jacket (4704 strands/100% oxygen free copper ). Both ends have ring terminals attached; 0.715" wide and 0.330" inner diameter.
- Ground Wires: Two 4' lengths of 1/0 gauge multi-strand ground wires in translucent pearl colored jackets (4704 strands/100% oxygen free copper). Both ends of each wire have ring terminals attached; 0.715" wide and 0.330" inner diameter.
- Installation Accessories:
- Two additional 1/0 AWG crimp-on ring terminals
- Two XS Power heat shrink tubes (used with the extra ring terminals to protect exposed surface)
- Ten wire clamps
- Ten 1/2" Self-tapping screws
- Ten 3" Wire ties
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Customer Q&A
Q Crutchfield asked: Why did you buy this?
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