Coolant pipe failure is an inevitable problem with the Porsche GT1-block equipped models (GT3, GT2, Turbo). Bonded together by adhesives, the factory pipes will eventually leak or abruptly fail.As the best preventative fix and solution for this problem, BBi Autosport offers replacement billet aluminum coolant pipes to be permanently welded. Compared to the factory fittings, these replacement billet fittings offers superior metallurgy to allow stronger, higher quality welds.