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The only manifold available to give a substantial gain in power and fuel economy.
Not cheap cast and not weak tubular. This is the finest fully CNC machined billet turbo manifold on the planet.
Easily outperforms every other manifold available.
Don't want to switch to the "center dump" style exhaust manifold?
This manifold is the next best thing. You can retain your stock intake style intake & downpipe!
1: Highest power
2: Best economy
3: Lowest EGTs
4: Most durable
5: Fastest turbo spool
This manifold is built with an Exhaust Flange designed to fit the STOCK VGT tubo found on 07.5-18 6.7L Cummins diesels.
Your satisfaction is guaranteed! If for any reason you are not happy with your Cummins manifold you can return it to us for a full refund.
Built to order. **These manifolds generally ship 4-6 weeks after ordering**
I just installed my steed speed manifold 4TI, works perfect with my stock VGT turbo. I purchased some exhaust bolts to dump the stubs and spacers. On cylinder 6 the bottom bolt I recommend the original stub spacer to hold the water pipe. Steed Speed will send you a backpressure adaptor for the little brake line that connect between cylinder 3 and 4. Perfect and more flow. This exhaust manifold rocks.
Very Well made very nice and worth the wait and perfect fit