VTT Double Barrel Review.

martymil

Major General
Sep 6, 2017
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S65 1m
The pumps are the same age as the kit, the original factory pump failed as soon as I put the double barrel in.

Just goes to show these new pumps run better overspun and don't fail.
 
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rev210

Corporal
Feb 24, 2019
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335i - 08 Coupe .
Valuable feedback Martyđź‘Ť
Not often do you get a chance to find longer term reviews. Now if only BMW could make a more reliable hpfp.

I think keeping the e content lower may also be helping longevity for the factory pump. I think spool contended one of the valves inside wasnt e friendly.
 

martymil

Major General
Sep 6, 2017
3,331
1,906
0
Down Under
Ride
S65 1m
The seals on the valve are not e friendly, i had a pump valve fail on my 135 so I just replaced the valve and found the seal was shot