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Duramax Intercooler Pipe
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DODGE RAM
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from 5029 reviews
These guys are great. They have fast shipping and their product is great. I wish they had more parts for my truck but they cant make them all i suppose. They added quite a bit of HP to my build. It turned out great
Best investment i bought and proud to have from SPELAB
Instructions were great, could
Be more detailed but overall great product, install wasn’t bad at all, unfortunately snapped oil dipstick tube following instructions but other than that I would say the plugs in the intake could’ve been put in prior rather than leaving room for install error
Very nice
Good products great pricing
Works great, find out how to wire it on YouTube if you aren’t sure, super easy though only two wires
this 2017 3500 Ram with now 111274 miles was used by PO to pull 5th wheel and now it pulls a 30 ft airstream TT.. I change out fluid at 96K with OEM cover and started looking for replacement.. this is great with magnetic drain plugs which is a great help as we change out oil every 35K miles as we tow a lot..
This new alum cover with fins is much like the AAM unit used on teh HO engines from factory with not quite the amount of and placement of fins but in the end this accomplished the goal of keeping the fluid cooler especially when towing.
One thing i did notice was the no actual instruction on what was proper level of oil in sight glass.. Usually on OEM cover you fill till the oil dribbles out the fill plug on cover and that if good..
on this model I noticed the sight glass was lower than the OEM plug determining the level need to be not the middle of the sight glass but at the TOP of the sight glass.. just saying.. the inside has fluid diversion fins so help move the oil to ponion gear and the side bearing on housing..
The fit and finish are great and it looks super cool now in the alum color.. I though about spray painting and sanding the edge of the fins to have that nice contrast but left it silver.
highly recommend and the price is right..
Order came in a few days earlier than the expected delivery day pretty easy install it makes the engine may look a lot better
I purchased a pair of Spelab Electric Cutouts for my BMW. Everything in the kit was shipped quickly, was perfectly packaged and the quality of their product is top notch. I installed the cutouts and I couldn't happier with the way they work. I was even able to pair the remote to the Homelink buttons to open and close the valves.
Hoping to gain a sponsorship soon I use yalls parts on my personal build and customers builds
Very good quality kit and was easy to install!! I highly recommend it!!
Excellent quality product that definitely delivers a difference in throttle response. You can tell that the engine is breathing much better. I highly recommend this to everyone out there. Shipping was fast too!! And to top it off, the dreaded engine killing grid heater plate is gone for good! Look how bad the grid heater was after only 46,000 mi. You can barely see thru the grids. Ridiculous design by Cummins/Ram. They should be ashamed for putting that piece of junk on such a good engine. Next up, turbo tubes!
Fit my 08 6.4 extended cab just fine. Sounds great with a 5x7 tip
I have always used there products and customers always are happy
Was on the fence between the 4 or 5…but definitely glad I went with the 5! Fits perfect and sounds amazing!!
Duramax Intercooler Pipe FAQ
Cold side pipes run from the intercooler to the throttle body; hot side pipes run from the turbo to the intercooler inlet. Both matter for flow, but the cold side (also called the Y-bridge on LBZ/LMM Duramax) is the most restrictive from the factory. The LBZ/LLY cold side rated 4.62 stars from 29 reviews—upgrading it first gives the biggest boost response gain per dollar spent.
Yes. Factory Duramax intercooler pipes use rubber couplers and spring clamps that degrade over time, causing boost leaks under high load. The SPELAB aluminum pipe kit replaces these with silicone couplers and T-bolt clamps for a leak-free seal. Common signs of factory boost leaks: white smoke on deceleration, whistle sounds under boost, and less power than expected at the dyno.
Upgrade pipes first if your truck is stock or mildly tuned. The pipe upgrade alone improves turbo response and reduces lag. If you're already planning a full delete tune (EGR + DPF), do both at the same time—delete tuning raises boost pressure, which makes the factory pipes' weak points fail faster. A $135–$200 pipe kit is cheap insurance before running higher boost tunes on the LBZ/LMM or LML.
The LBZ/LMM (2006–2010) uses a Y-bridge cold side design. The LML (2011–2016) uses a single-run cold side pipe with a different mounting bracket. The LML intercooler outlet diameter is larger (3.5") than the LBZ/LMM (3"), so the kits are not interchangeable. Always verify your engine code—LBZ vs LMM can be hard to distinguish by year alone since 2006.5 straddles both.
Yes—with the truck on jack stands, not flat on the ground. The hot side pipes are accessible from the top on most Duramax trucks. The cold side requires removing the wheel well liner on the passenger side on LBZ/LMM trucks. Plan for 1–2 hours on the hot side only, or 3–4 hours if doing both hot and cold side with Y-bridge replacement on the LBZ/LMM.
