ive seen two trucks that have true 4 inch turbo direct pipes but neither person knew where they were from because they were on their trucks when they bought them. does anyone know anythhing about these?
-Clint
-Clint
turbo direct pipe
- Thread starter thedirtymax
- Start date
Are you talking about the turbo down pipe?
That goes from the turbo to the intermediate pipe?
If so there are sever vendors here that sell the Diamond Eye down pipe. There is another maker of them now also but I can't remember the name. iirc they did say the Diamond Eye did fit better.
That goes from the turbo to the intermediate pipe?
If so there are sever vendors here that sell the Diamond Eye down pipe. There is another maker of them now also but I can't remember the name. iirc they did say the Diamond Eye did fit better.
ya the one that bolts directly to the turbo and goes down the back of the engine in between the engine and firewall
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The v-band outlet of the stock turbo is smaller than 4", as is the V-band at the front of the front pipe. Why run something that is 4" in between but only 3" on each end? I have an ATS true 4" down-pipe on my truck but my S475 has a 4" V-band outlet and I had to cut the front bend off the front pipe and connect under the truck to the 4" section. The Diamond Eye and MRBP downpipes for the LLY and newer trucks are 3" IIRC and have much smoother mandrel bends and stay round instead of pinching to an oval like the stock one. The Diamond Eye piece fits better and is all around nicer IMO. I typically recommend waiting until you upgrade your turbo (if you have plans to eventually) and then getting a downpipe to fit it.