Performance Upgrades

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512-982-9393 (TX) or 562-981-6800 (CA)

Showing 1 to 200 of 2638 (14 Pages)
 Alfa Romeo Stelvio Carbon Fiber Paddle Shifter Covers
Recommended by MADNESS
 Alfa Romeo Stelvio Carbon Fiber Paddle Shifter Covers - Red Carbon
Free Continental US Shipping!
 Audi A3 1.8T 25mm Turbo Recirculation Valve w/ Adjustable Vacuum Port by Forge Motorsport
Free Continental US Shipping!
 Nissan GT-R Engine Cover - Carbon Fiber

Nissan GT-R Engine Cover - Carbon Fiber

 price
$749.99
$799.99 Save: $50.00
Recommended by MADNESS
 Nissan GT-R Twin Turbo SF Air Intake Pipes - Carbon Fiber
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Recommended by MADNESS
 Porsche Panamera Exhaust Frame Trim - Carbon Fiber
Recommended by MADNESS
Alfa Romeo 4C - Engine Control Module - Eco Power Chip
Recommended by MADNESS
Alfa Romeo 4C - Engine Control Module - Power+ by SILA Concepts
Recommended by MADNESS
Alfa Romeo 4C - Performance ECU by MADNESS - 91 Octane

Alfa Romeo 4C - Performance ECU by MADNESS - 91 Octane

 price
$1,799.99
$1,999.99 Save: $200.00
Recommended by MADNESS
Alfa Romeo 4C - Performance ECU by MADNESS - 93 Octane

Alfa Romeo 4C - Performance ECU by MADNESS - 93 Octane

 price
$1,999.99
$2,499.99 Save: $500.00
Recommended by MADNESS
Alfa Romeo 4C AutoFlash by MADNESS

Alfa Romeo 4C AutoFlash by MADNESS

 price
$499.99
$599.99 Save: $100.00
Free Continental US Shipping!
Recommended by MADNESS
Alfa Romeo 4C Boost Pressure Hose by Pogea Racing - Black
Alfa Romeo 4C Boost Pressure Hose by SILA Concepts - Black
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Recommended by MADNESS
Alfa Romeo 4C Boost Pressure Hose by SILA Concepts - Red
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Recommended by MADNESS
Alfa Romeo 4C Carbon Fiber Exhaust Cooling Air Inlet
Recommended by MADNESS
Alfa Romeo 4C Carbon Fiber Seat Belt Trim Set

Alfa Romeo 4C Carbon Fiber Seat Belt Trim Set

 price
$319.99
$349.99 Save: $30.00
Recommended by MADNESS
Alfa Romeo 4C Exhaust Manifold Cooling Hose - Black
Alfa Romeo 4C Exhaust Manifold Cooling Hose by SILA Concepts - Black
Free Continental US Shipping!
Recommended by MADNESS
Alfa Romeo 4C Exhaust Manifold Cooling Hose by SILA Concepts - Red
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Recommended by MADNESS
Alfa Romeo 4C Hi Flow Cat

Alfa Romeo 4C Hi Flow Cat

 price
$1,199.99
$1,299.99 Save: $100.00
Alfa Romeo 4C Hose/ Filter Upgrade Kit by BMC + SILA
Free Continental US Shipping!
Recommended by MADNESS
Alfa Romeo 4C Hose/ Filter Upgrade Kit by BMC + SILA
Free Continental US Shipping!
Recommended by MADNESS
Alfa Romeo 4C Perfomance Exhaust System - Magnaflow - Dual Exit - 4" Tips
Recommended by MADNESS
Alfa Romeo 4C Performance Air Filter  - Sprint Filter
Recommended by MADNESS
Alfa Romeo 4C Performance Air Filter by BMC

Alfa Romeo 4C Performance Air Filter by BMC

 price
$79.99
$99.99 Save: $20.00
Recommended by MADNESS
Alfa Romeo 4c Spark Plugs - Silver Racing by Brisk - Set of 4
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Alfa Romeo 4C Throttle Controller - MADNESS GOPedal
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Recommended by MADNESS
Alfa Romeo 4C Throttle Controller - MADNESS GOPedal - Bluetooth
Free Continental US Shipping!
Recommended by MADNESS
Alfa Romeo 4C Wheel Spacers by Athena - 16mm (set of 2 w/ extended bolts)
Free Continental US Shipping!
Recommended by MADNESS
Alfa Romeo 4C Wheel Spacers by Athena - 20mm (set of 2 w/ extended bolts)
Free Continental US Shipping!
Recommended by MADNESS
Alfa Romeo 4C Wheel Spacers by Athena - 25mm (set of 2 w/ extended bolts)
Free Continental US Shipping!
Recommended by MADNESS
Alfa Romeo Giulia - Engine Control Module - Power+ by SILA Concepts - 2.0L Turbo Engine
Recommended by MADNESS
Alfa Romeo Giulia 2.0 Engine Control Module by Lorinser
Free Continental US Shipping!
Recommended by MADNESS
Alfa Romeo Giulia 2.0L Blow Off Adapter Plate by SILA Concepts
Free Continental US Shipping!
Alfa Romeo Giulia 2.0L MADNESS Power Pack PRO - Stage 1
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Alfa Romeo Giulia 2.9 Engine Control Module by Lorinser
Free Continental US Shipping!
Recommended by MADNESS
Alfa Romeo Giulia 2.9L Catless Downpipe by Ragazzon - Evo Line (Automatic Transmission)
Recommended by MADNESS
Alfa Romeo Giulia 2.9L Catless Downpipe by Ragazzon - Evo Line (Manual Transmission)
Recommended by MADNESS
Alfa Romeo Giulia 2.9L High Flow Downpipe by Ragazzon - Evo Line - 200CPSI (Automatic Transmission)
Recommended by MADNESS
Alfa Romeo Giulia 2.9L High Flow Downpipe by Ragazzon - Evo Line - 200CPSI (Manual Transmission)
Recommended by MADNESS
Alfa Romeo Giulia 2.9L Recirculating Valve Kit - Forge Motorsport - Quadrifoglio Model
Recommended by MADNESS
Alfa Romeo Giulia AutoFlash by MADNESS - 2.0L

Alfa Romeo Giulia AutoFlash by MADNESS - 2.0L

 price
$499.99
$599.99 Save: $100.00
Free Continental US Shipping!
Recommended by MADNESS
Alfa Romeo Giulia AutoFlash by MADNESS - 2.9L QV
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Recommended by MADNESS
Alfa Romeo Giulia Blow Off Valve - 2.0L - Turbosmart - Dual Port
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Recommended by MADNESS
Alfa Romeo Giulia Blow Off Valve - 2.0L - Turbosmart - Plumb Back
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Recommended by MADNESS
Alfa Romeo Giulia Brake Pads - 2.9L QV - EBC - Front - Blue Stuff
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Alfa Romeo Giulia Cat-less Downpipe Set by Akrapovic - Stainless Steel - Titanium Series - Quadrifoglio Model
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Alfa Romeo Giulia Catalytic Bypass Downpipes - Quadrifoglio - Primary - Fabspeed
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Recommended by MADNESS
Alfa Romeo Giulia Catless Downpipe by Ragazzon - Evo Line
Free Continental US Shipping!
Recommended by MADNESS
Alfa Romeo Giulia Cold Air Intake - MAXFlow Carbon Fiber Intake System w/ BMC Twin Air Conical Filter
Free Continental US Shipping!
Recommended by MADNESS
Alfa Romeo Giulia Diverter Valve - 2.0L - Go Fast Bits / GFB - DV+
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Recommended by MADNESS
Alfa Romeo Giulia Diverter Valve - 2.0L - Mopar
Alfa Romeo Giulia Diverter Valves (2) - 2.9L QV - Go Fast Bits / GFB - DV+
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Recommended by MADNESS
Alfa Romeo Giulia Diverter Valves (2) - 2.9L QV - Mopar
Alfa Romeo Giulia ECM Mount - Red
Alfa Romeo Giulia Engine Cover - Carbon Fiber - Quadrifoglio Version
Recommended by MADNESS
Alfa Romeo Giulia Engine Cover - Carbon Fiber - Quadrifoglio Version
Recommended by MADNESS
Alfa Romeo Giulia Engine Cover - Carbon Fiber w/ Red Accents - Quadrifoglio Version
Recommended by MADNESS
Alfa Romeo Giulia Engine Cover - Carbon Fiber w/ Red Center + Red Accents - Quadrifoglio Version
Recommended by MADNESS
Alfa Romeo Giulia Engine Cover - Carbon Fiber w/ White Accents - Quadrifoglio Version
Recommended by MADNESS
Alfa Romeo Giulia Exhaust Bypass Valve Controller - 2.9L QV - Akrapovic
Free Continental US Shipping!
Alfa Romeo Giulia Exhaust Bypass Valve Controller - 2.9L QV - Forza Componenti
Free Continental US Shipping!
Recommended by MADNESS
Alfa Romeo Giulia High Flow Catalytic Converter Downpipes - Quadrifoglio - Primary - Fabspeed
Free Continental US Shipping!
Recommended by MADNESS
Alfa Romeo Giulia High Flow Downpipe by Ragazzon - Evo Line - 300CPSI
Recommended by MADNESS
Alfa Romeo Giulia Intake Pipe Kit - Quadrifoglio Model - Carbon Fiber
Recommended by MADNESS
Alfa Romeo Giulia MAXFlow Air Intake Upgrade Kit - Black Silicone
Recommended by MADNESS
Alfa Romeo Giulia MAXFlow Air Intake Upgrade Kit - Red Silicone
Recommended by MADNESS
Alfa Romeo Giulia MAXFlow Air Intake Upgrade Kit w/ BMC Filter - Black Silicone
Recommended by MADNESS
Alfa Romeo Giulia MAXFlow Air Intake Upgrade Kit w/ BMC Filter - Red Silicone
Recommended by MADNESS
Alfa Romeo Giulia Performance Air Filter - 2.0L - Drop In - K&N
Alfa Romeo Giulia Performance Air Filter - 2.9L - K&N - Drop In - Quadrifoglio Model
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Alfa Romeo Giulia Performance Air Filter - Sprint Filter - 2.0L
Recommended by MADNESS
Alfa Romeo Giulia Performance Air Filter - Sprint Filter - 2.0L - Waterproof
Recommended by MADNESS
Alfa Romeo Giulia Performance Air Filter - Sprint Filter - 2.9L Quadrifoglio
Recommended by MADNESS
Alfa Romeo Giulia Performance Air Filter by BMC - 2.0L Engines
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Recommended by MADNESS
Alfa Romeo Giulia Performance Air Filter by BMC - Quadrifoglio 2.9L V6
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Recommended by MADNESS
Alfa Romeo Giulia Performance Exhaust - 2.0L - MADNESS - Lusso - Dual Side Exit
Free Continental US Shipping!
Recommended by MADNESS
Alfa Romeo Giulia Performance Exhaust - 2.0L - MADNESS - Lusso - Dual Side Exit - Blue Flame Stainless Steel Tips
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Recommended by MADNESS
Alfa Romeo Giulia Performance Exhaust - 2.0L - MADNESS - Lusso - Dual Side Exit - Carbon Fiber Tips
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Recommended by MADNESS
Alfa Romeo Giulia Performance Exhaust - 2.0L - MADNESS - Lusso - Dual Side Exit - Slash Cut Stainless Steel Tips
Free Continental US Shipping!
Recommended by MADNESS
Alfa Romeo Giulia Performance Exhaust - 2.0L - MADNESS - Monza - Dual Side Exit
Free Continental US Shipping!
Recommended by MADNESS
Alfa Romeo Giulia Performance Exhaust - 2.0L - MADNESS - Monza - Dual Side Exit - Blue Flame Stainless Steel Tips
Free Continental US Shipping!
Recommended by MADNESS
Alfa Romeo Giulia Performance Exhaust - 2.0L - MADNESS - Monza - Dual Side Exit - Carbon Fiber Tips
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Recommended by MADNESS
Alfa Romeo Giulia Performance Exhaust - 2.0L - MADNESS - Monza - Dual Side Exit - Slash Cut Stainless Steel Tips
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Recommended by MADNESS
Alfa Romeo Giulia Performance Exhaust - 2.0L - Milltek - Cat Back Exhaust
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Recommended by MADNESS
Alfa Romeo Giulia Performance Exhaust - 2.0L - Milltek - Cat Back w/ Active Valve Controller
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Recommended by MADNESS
Alfa Romeo Giulia Performance Exhaust - 2.0L - Ragazzon - Axle Back - Muffled
Recommended by MADNESS
Alfa Romeo Giulia Performance Exhaust - 2.0L - Ragazzon - Axle Back - Muffled - w/ Carbon Fiber Tips
Recommended by MADNESS
Alfa Romeo Giulia Performance Exhaust - 2.0L - Ragazzon - Center Section - Resonated
Recommended by MADNESS
Alfa Romeo Giulia Performance Exhaust - 2.0L - Ragazzon - Center Section - Straight Pipe
Recommended by MADNESS
Alfa Romeo Giulia Performance Exhaust - 2.9L QV - Akrapovic - Titanium - Evolution Line
Free Continental US Shipping!
Recommended by MADNESS
Alfa Romeo Giulia Performance Exhaust - 2.9L QV - Milltek - Cat Back Design
Free Continental US Shipping!
Recommended by MADNESS
Alfa Romeo Giulia Performance Exhaust - 2.9L QV - Ragazzon - Evo Line - Center Section
Recommended by MADNESS
Alfa Romeo Giulia Performance Exhaust - 2.9L QV - Ragazzon - Evo Line - Center Section - Resonated
Recommended by MADNESS
Alfa Romeo Giulia Performance Exhaust -2.9L QV - Milltek - Mid Back Design
Free Continental US Shipping!
Recommended by MADNESS
Alfa Romeo Giulia Quadrifoglio Boost Gauge Fitting Kit
Alfa Romeo Giulia Sportline Exhaust - 2.0L - Ragazzon - Axle Back - Muffled w/ Regular Tips
Recommended by MADNESS
Alfa Romeo Giulia Throttle Controller - MADNESS GOPedal - 2.0L
Free Continental US Shipping!
Recommended by MADNESS
Alfa Romeo Giulia Throttle Controller - MADNESS GOPedal - 2.0L - Bluetooth
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Recommended by MADNESS
Alfa Romeo Giulia Throttle Controller - MADNESS GOPedal - 2.9L
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Alfa Romeo Giulia Throttle Controller - MADNESS GOPedal - 2.9L - Bluetooth
Free Continental US Shipping!
Recommended by MADNESS
Alfa Romeo Stelvio - Engine Control Module - Power+ by SILA Concepts - 2.0L Turbo Engine
Recommended by MADNESS
Alfa Romeo Stelvio 2.0L Blow Off Adapter Plate by SILA Concepts
Free Continental US Shipping!
Recommended by MADNESS
Alfa Romeo Stelvio 2.0L MADNESS Power Pack PRO - Stage 1
Recommended by MADNESS
Alfa Romeo Stelvio AutoFlash by MADNESS - 2.0L

Alfa Romeo Stelvio AutoFlash by MADNESS - 2.0L

 price
$499.99
$599.99 Save: $100.00
Free Continental US Shipping!
Recommended by MADNESS
Alfa Romeo Stelvio AutoFlash by MADNESS - 2.9L QV
Free Continental US Shipping!
Recommended by MADNESS
Alfa Romeo Stelvio Blow Off Valve - 2.0L - Turbosmart - Dual Port
Free Continental US Shipping!
Recommended by MADNESS
Alfa Romeo Stelvio Blow Off Valve - 2.0L - Turbosmart - Plumb Back
Free Continental US Shipping!
Recommended by MADNESS
Alfa Romeo Stelvio Catless Downpipe by Ragazzon - Evo Line - 2.0L
Recommended by MADNESS
Alfa Romeo Stelvio Cold Air Intake - MAXFlow Carbon Fiber Intake System w/ BMC Twin Air Connical Filter
Free Continental US Shipping!
Recommended by MADNESS
Alfa Romeo Stelvio Custom Exhaust Tips - Ragazzon - Stainless Steel
Recommended by MADNESS
Alfa Romeo Stelvio Custom Exhaust Tips - Ragazzon - Stainless Steel - Carbon Fiber
Recommended by MADNESS
Alfa Romeo Stelvio Custom Exhaust Tips - Ragazzon - Stainless Steel - Slash Cut
Recommended by MADNESS
Alfa Romeo Stelvio Diverter Valve - 2.0L - Go Fast Bits / GFB - DV+
Free Continental US Shipping!
Recommended by MADNESS
Alfa Romeo Stelvio Diverter Valves (2) - 2.9L QV - Go Fast Bits / GFB - DV+
Free Continental US Shipping!
Recommended by MADNESS
Alfa Romeo Stelvio ECM Mount - Red
Recommended by MADNESS
Alfa Romeo Stelvio Engine Control Module by Lorinser - 2.0L
Free Continental US Shipping!
Recommended by MADNESS
Alfa Romeo Stelvio Engine Control Module by Lorinser - 2.9L QV
Free Continental US Shipping!
Recommended by MADNESS
Alfa Romeo Stelvio Engine Cover - Carbon Fiber - Quadrifoglio Version
Recommended by MADNESS
Alfa Romeo Stelvio Engine Cover - Carbon Fiber - Quadrifoglio Version - Red Candy
Recommended by MADNESS
Alfa Romeo Stelvio Engine Cover - Carbon Fiber - Quadrifoglio Version - White Accents
Recommended by MADNESS
Alfa Romeo Stelvio High Flow Downpipe by Ragazzon - Evo Line - 300CPSI
Recommended by MADNESS
Alfa Romeo Stelvio Lowering Springs by MADNESS - Sport
Recommended by MADNESS
Alfa Romeo Stelvio Lowering Springs by MADNESS - Sport - Quadrifoglio Model
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Recommended by MADNESS
Alfa Romeo Stelvio Lowering Springs by MADNESS - Sport Plus
Recommended by MADNESS
Alfa Romeo Stelvio Lowering Springs by MADNESS - Sport Plus - Quadrifoglio Model
Recommended by MADNESS
Alfa Romeo Stelvio MAXFlow Air Intake Upgrade Kit - Black Silicone
Recommended by MADNESS
Alfa Romeo Stelvio MAXFlow Air Intake Upgrade Kit - Red Silicone
Recommended by MADNESS
Alfa Romeo Stelvio MAXFlow Air Intake Upgrade Kit w/ BMC Filter - Black Silicone
Recommended by MADNESS
Alfa Romeo Stelvio MAXFlow Air Intake Upgrade Kit w/ BMC Filter - Red Silicone
Recommended by MADNESS
Alfa Romeo Stelvio Performance Air Filter - Sprint Filter - 2.0L
Recommended by MADNESS
Alfa Romeo Stelvio Performance Air Filter - Sprint Filter - 2.0L - Waterproof
Recommended by MADNESS
Alfa Romeo Stelvio Performance Air Filter - Sprint Filter - 2.9L Quadrifoglio
Recommended by MADNESS
Alfa Romeo Stelvio Performance Air Filter by BMC - 2.0L Engines
Free Continental US Shipping!
Recommended by MADNESS
Alfa Romeo Stelvio Performance Air Filter by BMC - Quadrifoglio 2.9L V6
Free Continental US Shipping!
Recommended by MADNESS
Alfa Romeo Stelvio Performance Exhaust - 2.0L - MADNESS - Lusso - Dual Side Exit
Free Continental US Shipping!
Recommended by MADNESS
Alfa Romeo Stelvio Performance Exhaust - 2.0L - MADNESS - Monza - Dual Side Exit
Free Continental US Shipping!
Recommended by MADNESS
Alfa Romeo Stelvio Start/ Stop Button - Genuine Part - Red
Alfa Romeo Stelvio Throttle Controller - MADNESS GOPedal - 2.0L
Free Continental US Shipping!
Recommended by MADNESS
Alfa Romeo Stelvio Throttle Controller - MADNESS GOPedal - 2.0L - Bluetooth
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Alfa Romeo Stelvio Throttle Controller - MADNESS GOPedal - 2.9L
Free Continental US Shipping!
Recommended by MADNESS
Showing 1 to 200 of 2638 (14 Pages)

Two locations to serve you

AUSTIN, TX

22108 SH 71 W.
Spicewood, TX 78669
512-982-9393
Mon-Fri: 9 AM - 6PM CST
Sat-Sun: Closed

LOS ANGELES, CA

2716 Dawson Ave.
Signal Hill, CA 90755
562-981-6800
Mon-Fri: 9 AM - 6PM PST
Sat-Sun: Closed