ZombieDropper
Well-Known Member
- First Name
- Jürgen
- Joined
- Sep 2, 2025
- Threads
- 18
- Messages
- 106
- Reaction score
- 149
- Location
- Phoenix, AZ
- Vehicle(s)
- 2025 Ranger Raptor, 2000 Hummer H1
- Occupation
- Facilities Manager
- Thread starter
- #16
I can't hear the turbos at all. I think the cats and mufflers diffuse the whine. I do have SPD catted downpipes arriving tomorrow. SPD claims +90% increased flow. I don't know if that will allow turbo noise out the tailpipe. Now my H1 has a fully deleted LBZ Duramax. No cat or muffler and surprisingly it's not loud at all. It also has a Calibrated Power stealth 64 bearing turbo. I make about 640HP and it sounds like a jet engine going down the road. I think it's awesome.
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