Performance Upgrades

Don't see the item you need or want?

We stock thousands of parts and accessories from most major suppliers. Only a small portion of our catalog is on our online store. We are continously adding products to our site, but if you do not see the product you are looking for please contact us by phone or email and we will gladly assist you.

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

Showing 1 to 75 of 75 (1 Pages)
smart fortwo AutoFlash - 450 model - MADNESS
Free Global Shipping!
Recommended by MADNESS
smart fortwo AutoFlash - 451 model - MADNESS
Free Global Shipping!
Recommended by MADNESS
smart fortwo Ignition Coil Pack Set - MAXFire - High Performance - 451 model
Recommended by MADNESS
smart fortwo MADNESS Power Pack - 451 model - Stage 1
Recommended by MADNESS
BMC Filter Cleaning Kit - Complete Washing Kit (Detergent + Oil Bottle)
Recommended by MADNESS
Breather Filter - 3/4"
Intake Replacement Filter - BMC - 54mm/ 2.125"
Free Continental US Shipping!
Recommended by MADNESS
Intake Replacement Filter - SILA Concepts - 54mm/ 2.125in
Free Continental US Shipping!
Recommended by MADNESS
smart 451 Cold Air Intake Replacement Filter - BMC Performance Filter
Free Continental US Shipping!
Recommended by MADNESS
smart Crossblade AutoFlash - MADNESS
Free Global Shipping!
Recommended by MADNESS
smart fortwo AutoFlash - 453 model - MADNESS
Free Global Shipping!
Recommended by MADNESS
smart fortwo Blow Off Adaptor Plate - 453 - Bonalume
Free Continental US Shipping!
Recommended by MADNESS
smart fortwo Cold Air Intake + Induction Tube Set - 451 model
Recommended by MADNESS
smart fortwo Cold Air Intake - 451 - SILA Concepts
Recommended by MADNESS
smart fortwo Cold Air Intake by MADNESS - 451 model - Induction Tube Upgrade
Recommended by MADNESS
smart fortwo Cold Air Intake Replacement Air Filter - 451 - SILA Concepts
Recommended by MADNESS
smart fortwo Cold Air Intake System - 451 - Injen - Black
Free Continental US Shipping!
smart fortwo Cruise Control - 450 Model Coupe

smart fortwo Cruise Control - 450 Model Coupe

 price
$449.99
$549.99 Save: $100.00
Recommended by MADNESS
smart fortwo Cruise Control - 451 Model - Cabrio
Recommended by MADNESS
smart fortwo Cruise Control - 451 Model - Coupe
Recommended by MADNESS
smart fortwo Dump Valve Kit - 450 model - Forge
Recommended by MADNESS
smart fortwo ECU Tune by MADNESS - 451 Model
Free Global Shipping!
Recommended by MADNESS
smart fortwo Engine Control Module - 453 model - Power+ by SILA Concepts
Recommended by MADNESS
smart fortwo Engine Performance Module - 453 model - Lorinser
Recommended by MADNESS
smart fortwo Exhaust - 451 - BRABUS

smart fortwo Exhaust - 451 - BRABUS

Inquire for latest price

smart fortwo Ignition Coil Pack Set - Power+ by SILA Concepts - 451 model
Recommended by MADNESS
smart fortwo Instrument Pods - 451 model - Tach + Clock - 2011 - on models
Free Continental US Shipping!
smart fortwo Intake Upgrade Hose - 451 Model - Black
Recommended by MADNESS
smart fortwo Intake Upgrade Hose - 451 Model - Red
smart fortwo Intake Upgrade Hose w/ BMC Air Filter- 451 Model - Black
Recommended by MADNESS
smart fortwo Intake Upgrade Hose w/ BMC Air Filter- 451 Model - Red
Recommended by MADNESS
smart fortwo MADNESS Power Pack - 451 model - Stage 2
Recommended by MADNESS
smart fortwo Performance Air Filter  - 451 - BMC
Recommended by MADNESS
smart fortwo Performance Air Filter - 450 - aFe
Free Continental US Shipping!
smart fortwo Performance Air Filter - 450 - BMC
Free Continental US Shipping!
Recommended by MADNESS
smart fortwo Performance Air Filter - 451 - aFe Pro 5R - Pre-Oiled Media
Recommended by MADNESS
smart fortwo Performance Air Filter - 451 - K&N
Free Continental US Shipping!
smart fortwo Performance Air Filter - 453 - BMC
Recommended by MADNESS
smart fortwo Performance Air Filter - 453 - Sprint Filter
Recommended by MADNESS
smart fortwo Performance Engine Mount - 451 Model
Recommended by MADNESS
smart fortwo Performance Exhaust - 450 - T1 600 & 700 cc Engines
Recommended by MADNESS
smart fortwo Performance Exhaust - 451 - SILA Concepts - Center Exit
Recommended by MADNESS
smart fortwo Performance Exhaust - 451 - SILA Concepts - Side Exit
Recommended by MADNESS
smart fortwo Performance Exhaust - 453 - Carlsson

smart fortwo Performance Exhaust - 453 - Carlsson

 price
$899.99
$1,299.99 Save: $400.00
Free Continental US Shipping!
Recommended by MADNESS
smart fortwo Performance Exhaust - 453 - Lorinser
Recommended by MADNESS
smart fortwo Performance Exhaust - 453 - Ragazzon - Top Line - Center Exit / Dual Tip
Recommended by MADNESS
smart fortwo Performance Exhaust - 453 - Ragazzon - Top Line - Dual Exit / Quad Tip
Recommended by MADNESS
smart fortwo Performance Exhaust - 453 model - BRABUS
Recommended by MADNESS
smart fortwo Performance header - 451 model - SFR
Free Continental US Shipping!
smart fortwo Replacement Spark Plugs (set of 3) - Denso Iridium - 451 model
Free Continental US Shipping!
Recommended by MADNESS
smart fortwo Throttle Response Controller - MADNESS GOPedal - 450 model
Recommended by MADNESS
smart fortwo Throttle Response Controller - MADNESS GOPedal - 450 model - Bluetooth Controls
Recommended by MADNESS
smart fortwo Throttle Response Controller - MADNESS GOPedal - 451 EU model
Recommended by MADNESS
smart fortwo Throttle Response Controller - MADNESS GOPedal - 451 EU model - Bluetooth Controls
Recommended by MADNESS
smart fortwo Throttle Response Controller - MADNESS GOPedal - 451 NA model
Recommended by MADNESS
smart fortwo Throttle Response Controller - MADNESS GOPedal - 451 NA model - Bluetooth Controls
Recommended by MADNESS
smart fortwo Throttle Response Controller - MADNESS GOPedal - 453 model
Recommended by MADNESS
smart fortwo Throttle Response Controller - MADNESS GOPedal - 453 model - Bluetooth Controls
Recommended by MADNESS
smart fortwo Throttle Response Controller - MADNESS GOPedal - Roadster
Recommended by MADNESS
smart fortwo Throttle Response Controller - MADNESS GOPedal - Roadster - Bluetooth Controls
Recommended by MADNESS
smart fortwo Turbo - 451 model - Polishing or Powder coating option
Recommended by MADNESS
smart fortwo Turbo Kit - 451 model - Header Upgrade
Recommended by MADNESS
smart fortwo Turbo Kit - 451 model - Twin Tip Center Exit upgrade
Recommended by MADNESS
smart fortwo Turbo Upgrade Kit - 451 model - Stage 2
Recommended by MADNESS
SMART MADNESS Gift Certificate
Free Global Shipping!
Recommended by MADNESS
smart Roadster AutoFlash by MADNESS
Free Global Shipping!
Recommended by MADNESS
BOX O' STUFF - Jumbo - smart
Recommended by MADNESS
BOX O' STUFF - smart
Recommended by MADNESS
smart fortwo 451 Throttle Controller - InterStar PowerPedal - EU Model
Free Continental US Shipping!
Recommended by MADNESS
smart fortwo 451 Throttle Controller - InterStar PowerPedal - NA Model
Free Continental US Shipping!
Recommended by MADNESS
smart fortwo 453 Throttle Controller - InterStar PowerPedal
Free Continental US Shipping!
Recommended by MADNESS
Showing 1 to 75 of 75 (1 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