The Central Hub for DSM Community and Information

For 1990-1999 Mitsubishi Eclipse, Eagle Talon, Plymouth Laser, and Galant VR-4 Owners. This is where the DSM platform history is documented and archived. Log in to help us in our mission, and to remove most ads from the browsing experience.

2G W4A33 performance upgrade guide (please add)

This site may earn a commission from merchant affiliate links, including eBay, Amazon, and others.

TheFlashDSM

Supporting Member
1,106
356
Feb 18, 2010
stony brook, New York
Howdy yawl LOL

A lot of information for our transmission (w4a33) can be found on the first link of the W4a33 wiki, 95, 96, 97, 98, 99 Mitsubishi Eclipse GSX/GST automatic 4wa33 upgrade guide/information (please add if you know of any extra parts/vendors/suppliers/guides)

Information for the w4a33 is out there, but its all mixed around on different sites and threads, so I'm putting as much as I can in this thread for 1 location of it all! (your welcome LOL)
What I have listed is all I could think of off the top of my head. Please share any threads to upgrades for our transmissions. Videos are welcome too.

if not listed, to add information not listed, please...
description of what's in the thread/video
link to website
for gst gsx
year of trans
vendors - please post direct link of the page you want to show and explain what it is (for better S.E.O.)

-W4a33 wiki for w4a33 information http://w4a33.com/doku.php?id=start

-IPT (import performance transmissions (transmission upgrades / shift kits / simple shift box / fluids / re-stalled converters / rebuild kits) https://www.importperformancetrans.com/index.php?l=product_list&c=66

-Level10 bulletproof transmission (transmission upgrades / fluids / high & re-stalled converters / rebuild kits / transmission TCU reflash) https://www.levelten.com/SearchResults.asp?Cat=45

-Raybestos Powertrain (w4a33/A4AF1/F1C1/F4A32A/F4A33-1/F4A41/F4A42/F4A51/F4A5A/F5A42/F5A51/JF613E/KM 170 SERIES/KM175/KM177/R5A51/R5M31/V5A51/W4A32-1/W4A32A clutch packs/frictions/rebuild kits) https://www.raybestospowertrain.com/transmission/w4a33

-Precision Industries (torque converters / rebuild kits) https://converter.com/mitsubishi/

-Performance Part Out (used transmissions / tcases / tcu's / and more) https://performancepartout.com/mitsubishi/

-Forced Four Electronics (programmable TCU's / shift boxes) http://www.forcedfour.com/index.html

-TransLab (shift kits for valve bodies) Shift Kit TL 175 HP https://superiortransmission.com/our-products/?swoof=1&product_cat=translab

-Jeff Bush (provides many upgrades for our transmissions and drive line like 300m output shaft and straight cut gears)https://www.facebook.com/JBush-Designs-1018132384925538/

-Boostin Performance (automatic tcase upgrades and more) https://shop.boostinperformance.com/bp-store/90-99-dsm/drivetrain-clutches/

-Kiggly Racing (9 second and faster w4a33 parts / billet basket / SFI flex plate / diff support / upgraded friction pacts) https://www.kigglyracing.com/shop-1

-Magnus Motorsports (tcase billet gears / tcase billet center / tcase side cover) https://www.magnusmotorsports.com/product-category/drivetrain-transmission-clutch/
 
Last edited by a moderator:
Add Value - Be Respectful - No Trolling - No Misinformation - Participate Often!
Support Vendors who Support the DSM Community

Latest posts

Build Thread Updates

Latest Classifieds

  • For sale Misc Left Over Parts
    Hello, I have a few left over parts for sale, these do not include shipping, please pm me for a...
    • r3dmak
    • Updated:
    • Expires
  • For sale Alpha Injection Clinic 2200cc for 4G63 DSM/EVO
    I have a set of Alpha Injection Clinic 2200cc high z injectors for DSM/EVO. I am stepping up to...
    • spoolinpos
    • Updated:
    • Expires
  • Wanted WTB 2g half rad
    ISO of a 2g koyo half rad or something equivalent.
    • Michael Wucher
    • Updated:
    • Expires
  • For sale Coilover Springs
    Used pair of Eibach coilover springs from an old set of Ground Control coilovers. 2.5" inner...
    • RamenPride
    • Updated:
    • Expires
  • For sale 4G63 Mitsubishi logo early valve cover
    Early Mitsubishi logo valvecover. “1990” All threaded holes are good. Has the 90 style vent...
    • Galant665
    • Updated:
Back
Top