6448

PDI Big Boss Intake Manifold Cummins X15 | ISX15 2013.5-2020

9 reviews
  • $1,350.00

Available for: 2013.5 - 2018 Cummins ISX15 & X15 Engines

Warranty: 1 Year Unlimited Mile Warranty

PDI Big Boss Intake manifolds are built to increase and balance the air going into the engine. By opening up the manifold in key areas airflow will increase up to 35% leading to lower air intake temperatures resulting in power gains of up to 20hp. These direct replacement manifolds are simple to install and utilize factory hardware. Like all PDI products, the Big Boss intake manifolds will increase horsepower and efficiency to make your drive more enjoyable and save you money.

NOT LEGAL FOR SALE OR USE IN CALIFORNIA

 Product Overview Video:

Installation Video:

 Inside the Cab Results:

Customer Reviews
5.0 Based on 9 Reviews
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GM
11/25/2020
George M.
United States United States
shop manager

you can hear and feel the better difference

DH
11/17/2020
Daniel H.
United States United States
X15 manifold

Great product fast shipping. Easy install. And. Truck runs great. More throttle response

AW
09/22/2020
Adam W.
United States United States
Pdi big boss intake

Very easy install. A lot more throttle response over stock. Noticed a slight mileage gain as well!

Performance Diesel Inc PDI Big Boss Intake Manifold Cummins X15 | ISX15 2013.5-2020 Review
AB
10/30/2019
Allen B.
United States United States
PDI Air intake manifold

So far so good, engine seems to be a bit quieter and runs much smoother. Engine temp has dropped some and I have a bit more throttle response. Still not totally on board with these new motors. I miss my old E model cat, but I’ll probably end up getting a tuner from you all too,eventually. If I don’t delete it first!

WP
10/16/2019
William P.
United States United States
Bad cord I hope

It’s not working. I’ve spoken to Robbie on several occasions and he thinks it’s the power cord. I just had to spend $50.00 to get a new cord overnighted to me after spending $3,700.00 last week?