[guancho34]

Picked up the silicone hotside charge pipe from VTT as part of a package when i replaced the turbos during the winter. After (8) days of racing (I run 18# so nothing crazy), mid-July, it failed catastrophically (meaning a 4" long rip) on the section between the rear and front turbo - DNF.

Reached out for a warranty replacement and was told they do not make a silicone version anymore (mentioned failures) and required $100 to get a set of "discounted" aluminum ones "as the warranty". Unfortunately, not in stock and told "a few weeks" (this past weekends race was a mess being waaaaaaay down on power as the limp patch put together wouldn't hold) - just followed up and told "1-2 more weeks". Not holding my breath.

Wanted to share my story in the event you are on the fence about picking one up...

[mattgu40]

installation is key for them to least a long time, As far as you can from the exhaust manifold and must not be touching the coolant tank /hose nor chassis.
Heat reflective material strongly suggested

quite hard to trim them right and get in the perfect spot.

[JuniorB]

They will all fail eventually. That's the worst aftermarket kit offffered for the n54!

[icewall]

that sucks. had mine on my 1 series since they started making them and so far no issues.

but yeah silicone doesnt make a ton of sense on that side of the engine

[PhilTrill]

I bought one with my inlets a couple years ago, still sitting on my parts shelf. After reading this I think it'll stay there

[LessIsMore]

VTT is no longer selling silicon outlets at all? thought the alum was just an additional product.

About a year ago, my VTT silicon outlet failed, developed a tear (not from rubbing) - and it was professionally installed by a Vargas certified installer. Reached out to VTT and they sent a 'newer' design, was told the new one was more strongly reinforced (not sure since I never saw them side by side). Installed by same Vargas cert installer locally, and no issues since...