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General

Acura NSX Enthusiast Mailing List
Acurazine - The unofficial Acura enthusiast resource..
NSX-Files
Temple of VTEC

GS-R Model Specific

Acura Integra GS-R - VTEC Modifications

Type R Model Specific

Acura Integra Type R Registry
Integra Type-R - Club of America

Legend

Legend Forums
Legend.org - For owners and enthusiasts alike. Information on maintenance and upgrades. With an online discussion forum for owners and other Legend nuts.

Enthusiasts

Acura forums.
Temple of VTEC

Vendors

Parts/Accessories

Andy's Auto Sport - Whether you're looking for OEM factory Acura parts replacements, or custom Acura parts to modify the look or performance of your Acura!
A&H Motorsport - Honda and Acura specialists.
CompTech Sport - Racing engines, Machine & Fabrication.
Custom Auto Trim - Custom auto trim.
DC Sports- Performance headers, exhaust, turbo manifolds, air filters.
GTech - How fast is your car? Don't guess. Know.
HKS - USA Driving performance modifications.
Impact Parts - Honda and Acura Online Catalog.
Import Parts Online
New Dimensions
Holley | NOS - Nitrous Oxide Systems
Spectrum-Auto.com
Street Wize
Weapon R

Aerodynamics

Kaminari
Wings West

Exhaust

Borla
GReddy
MagnaFlow
PaceSetter

Suspension

Bilstein
Eibach - Performance suspension.
Kyb - World class shcks and struts.
Neuspeed - High performance parts.
Shox.com - Performance shocks
Belltech