High Flow 3" Downpipe for 04.5–10 GM 6.6L Duramax Diesel LLY/LBZ/LMMNew
Replace the crushed, restrictive factory downpipe on your 2004.5–2010 GM 6.6L Duramax with a full 3" mandrel-bent high flow downpipe. Smooth internal transitions let the turbo breathe, drop ...
Description: Replace the crushed, restrictive factory downpipe on your 2004.5–2010 GM 6.6L Duramax with a full 3" mandrel-bent high flow downpipe. Smooth internal transitions let the turbo breathe, drop...More Details »
