2001-2004 LB7 Duramax S300 & S400 Single Turbo Install Kits

Wondering which type of turbocharger is best for your LB7? 🤔
Jason covers the differences between IHI Drop-In, S300, and S400 turbos when upgrading the worn factory setup on your Chevy Silverado or GMC Sierra HD diesel pickup.
PART NUMBER S300: WCF100478
www.wcfab.com/...
PART NUMBER S400: WCF100489
www.wcfab.com/...
Wehrli Custom Fabrication Inc. specializes in high-performance diesel upgrades and custom metal fabrication. At WCFab, we take great pride in our reputation for providing the highest quality fabricated parts and upgrades for your Duramax, Powerstroke, & Cummins Diesel trucks. Since our beginning, we have strived to produce the best products and services on the market, offering turbo kits and custom performance parts on many different levels for your work, play, or competition diesel truck. You can rest assured with the purchase of any of our custom fabricated MADE IN THE USA parts, you will receive the best quality product, fitment, performance, and customer service, before and after the sale.
Give us a call:
630-277-8239
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[@seangowan7441]

Will any of these require tuning?

[@WCFab]

Yes, these kits will require tuning.

[@heywatsup671]

No Lly or lbz kits anymore?

[@WCFab]

These kits are LB7 only. For LLY and newer Duramax engines we are focusing our parts development toward supporting performance VGT style chargers.

[@victorelizalde333]

For lly Research .. HSP or SDP and Dans diesel ,, Ryann’s diesel service too

[@ELKOBRA03]

I’m looking for that whistle turbo sound on my lb7

[@lucasdimovski69]

Could I run a s300 with stock components on a lb7

[@joshuahernandez7626]

⁠@@lucasdimovski69yes more than but don’t push it all the time or you’ll regret