The Bosch CP4.2 pump can grenade your entire fuel system. Here's why it fails on 6.7 Power Stroke, Duramax & 6.7 Cummins trucks — and how S&S Diesel disaster prevention kits and DCR conversions protect you.

Let's not sugarcoat it: there's a relatively cheap part bolted to your late-model diesel that's quietly waiting to detonate a $12,000 repair. It's the Bosch CP4.2 high-pressure fuel pump, and when it grenades, it doesn't ask permission — it machine-guns metal shrapnel through your entire fuel system and leaves you...

By Derek Rose Read more

2023 was a tough year at the track, I'm not even sure how many passes we attempted to make since the beginning of the season, but there was more swing and misses than I ever want to remember!!  We were able to break our 2022 record by running 4.41 at...

By DNR Customs Read more
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