Capability of the stock electrical 2009 VW GLI

[csnut18 10+ year member]

I am looking to throw in 1 mtx thunder elit 1501d as well as a mtx thunder elite te1004.

I have a 2009 Volkswagen gli 2.0 turbo which comes with a 140 amp alternator and a pretty big battery. Do you guys think the car will be able to handle this and what issues am I looking at. I know I should be doing the big 3 etc... but my question here is in regards to a completely stock setup. These amps are pretty powerful so I am looking for some input here. Thanks so much in advance.

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[MisterGrubbs 5,000+ posts]

It will probably hold it, but your voltage is going to be pretty bad I'd imagine.

Do the big three and an extra battery in the back, let it ride.

 

[csnut18 10+ year member]

Yeah, I am concerned with the fact that I have xenon headlamps from the factory and what damage they would suffer with that 1501d pounding. What do you think about this?

 

[MisterGrubbs 5,000+ posts]

Not sure what kind of damage they would take on with that in mind, but as I said if you would be semi-active long enough to buy a decent battery for the rear as well as do the big three, I seriously doubt that you're going to see any problems out of it.

 

[csnut18 10+ year member]

I know that the big three is important but I dont want to do that now. I know its not a big job in general but I have a feeling that this volkswagen makes things hard to get to. I think I may just go with slightly less power for the subs instead. Tje 1501d is probably too much to ask of a stock electrical system.