BIG BOSS TUNER

#1 Selling Tuner on the Market

Shop Tuners

BIG BOSS TURBOS

Built for Power & Performance

SHOP TURBOS

BIG BOSS MANIFOLDS

Improve Airflow & Cool Exhaust Temps

Shop Manifolds

Fast Shipping

Most orders ship within 24 business hours.

Have Questions?

Call 800-511-1231 to reach our customer support line.

Online Support

Talk with our online support team by clicking the blue "Chat with Us" button below.

Dealer Locator

Needing local install? Call to find a dealer near you.

Popular Collections

Shop Turbos Shop Manifolds Shop Intakes
PDI Big Boss Stage 1 Turbo PDI Big Boss Stage 1 Turbo
Performance Diesel

PDI Big Boss Stage 1 Turbo

In stock
(7)
From $3,325.00
PDI Big Boss Detroit Series 60 Turbo Stage 1
Performance Diesel

PDI Big Boss Detroit Series 60 Turbo Stage 1

In stock
(12)
$1,785.00
PDI Big Boss CAT C12 Stage 1 Turbo
Performance Diesel

PDI Big Boss CAT C12 Stage 1 Turbo

In stock
(2)
$1,785.00
Big Boss Cummins Stage 1 Turbo
Performance Diesel Inc

Big Boss Cummins Stage 1 Turbo

In stock
(2)
$1,785.00

Shop the #1 Selling Tuner on the Market

PDI’s BIG BOSS® Performance Tuner brings all the benefits of tuning without all the hassle. Simply plug it into your diagnostics port and follow the simple instructions to have the results of tuning with the press of a button.
Performance Diesel

PDI Big Boss Performance Tuner

In stock
SKU: 734001
$2,495.00
Application
View full details

Shop Our Performance Kits & Save!
PDI Big Boss Stage 1 Performance Kit for Cummins X15 and ISX PDI Big Boss Stage 1 Performance Kit for Cummins X15 and ISX
Performance Diesel Inc

PDI Big Boss Stage 1 Performance Kit for Cummins X15 and ISX

In stock
(6)
$3,950.00
PDI Big Boss Stage 2 Performance Kit for Cummins X15 and ISX PDI Big Boss Stage 2 Performance Kit for Cummins X15 and ISX
Performance Diesel Inc

PDI Big Boss Stage 2 Performance Kit for Cummins X15 and ISX

In stock
(1)
$6,650.00
PDI Big Boss Stage 3 Performance Kit for Cummins X15 and ISX PDI Big Boss Stage 3 Performance Kit for Cummins X15 and ISX
Performance Diesel Inc

PDI Big Boss Stage 3 Performance Kit for Cummins X15 and ISX

In stock
(1)
$13,500.00

Performance Kits

Built with Performance, Efficiency & Savings in Mind.

Shop All Kits

PDI Big Boss Intake Manifolds
BIG BOSS INTAKE MANIFOLD CUMMINS X15 | ISX15 2013.5-2020 - Performance Diesel Inc BIG BOSS INTAKE MANIFOLD CUMMINS X15 | ISX15 2013.5-2020 - Performance Diesel Inc
Performance Diesel

PDI Big Boss Intake Manifold Cummins X15 | ISX15 2013.5-2024

In stock
(15)
From $1,545.00
BIG BOSS INTAKE MANIFOLD CUMMINS ISX15 2010-2013 - Performance Diesel Inc BIG BOSS INTAKE MANIFOLD CUMMINS ISX15 2010-2013 - Performance Diesel Inc
Performance Diesel

PDI Big Boss Intake Manifold Cummins ISX15 2010-2013

In stock
(3)
$1,545.00
CUMMINS ISX 03-07 INTAKE MANIFOLD - Performance Diesel Inc CUMMINS ISX 03-07 INTAKE MANIFOLD - Performance Diesel Inc
Performance Diesel

PDI Big Boss Intake Manifold for Cummins ISX 03-07

In stock
(4)
$525.00

Intake Manifolds

Designed for improved airflow for increased engine performance

Shop All Intakes

Shop Best Selling Apparel & Accessories

PDI Trucker Hats

SHOP

Best Selling PDI Oil Fill Tube

SHOP

PDI Chrome Caps

SHOP

Shop All PDI Apparel & Accessories

Big Boss Accessories Big Boss Apparel
PDI Big Boss Charge Air Cooler Boot Kit PDI Big Boss Charge Air Cooler Boot Kit
Performance Diesel Inc

PDI Big Boss Charge Air Cooler Boot Kit

In stock
(3)
$395.00
PDI Aluminum CAT Oil Fill Tube and Cap (1994-2010) PDI Aluminum CAT Oil Fill Tube and Cap (1994-2010)
Performance Diesel

PDI Aluminum CAT Oil Fill Tube and Cap (1994-2010)

In stock
(27)
$255.00
PDI Cummins Aluminum Fill Tube for X15 | ISX PDI Cummins Aluminum Fill Tube for X15 | ISX
Performance Diesel Inc

PDI Cummins Aluminum Fill Tube for X15 | ISX

In stock
(0)
From $325.00
CUMMINS BILLET ALUMINUM OIL FILL CAP - Performance Diesel Inc CUMMINS BILLET ALUMINUM OIL FILL CAP - Performance Diesel Inc
Performance Diesel

PDI Billet Oil Fill Cap for Cummins ISX and X15

In stock
(0)
$85.00
PDI Big Boss Dual Oil Cooler for Cummins X15 and Cummins ISX
PDI Big Boss Dual Oil Cooler for Cummins X15 and Cummins ISX
Performance Diesel Inc

PDI Big Boss Performance Dual Oil Cooler for Cummins X15 | ISX

In stock
SKU: 7153232
$3,950.00
View full details