6448

PDI Big Boss Intake Manifold Cummins X15 | ISX15 2013.5-2022

15 reviews
  • $1,545.00

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 15 Reviews
5 ★
100% 
15
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Filter Reviews:
JC
02/01/2023
Julio C.
United States

Intake manifold.

I purchased and installed the intake but I don’t know if I need to tune the engine or what not after install. I didn’t notice any changes on the HP nor the torque in hills like everyone talks about in their comments. If someone knows what I’m supposed to do please let me know so I can take action and make it work better. Install was smooth. The part itself is of great quality American made. I rate it 5 stars cuz I love the part except I might need some guidance on what to do next or not. Thank you in advance and thank PDI for making great American products.

JC
12/31/2022
joel c.
United States United States

Very professional

Excellent all around service

RH
09/13/2021
Rusty H.
United States United States

Great

At the moment it seems great I wish I could get a big boss tune kit but I do not think it will work on my truck.

CV
07/26/2021
Cutberto V.
United States United States

Fast delivery. Excellent quality

Smoother and cooler engine operation

JH
04/24/2021
John H.
United States United States

Great pairing

Like the sound and the throttle response, a bit more boost on the tuner

Performance Diesel Inc PDI Big Boss Intake Manifold Cummins X15 | ISX15 2013.5-2022 ReviewPerformance Diesel Inc PDI Big Boss Intake Manifold Cummins X15 | ISX15 2013.5-2022 ReviewPerformance Diesel Inc PDI Big Boss Intake Manifold Cummins X15 | ISX15 2013.5-2022 Review