Welcome to the North American Subaru Impreza Owners Club Monday July 24, 2017
Home Forums WikiNASIOC Products Store Modifications Upgrade Garage
Go Back   NASIOC > NASIOC Technical > Factory 2.0L Turbo Powertrain (EJ Series Factory 2.0L Turbo)

Welcome to NASIOC - The world's largest online community for Subaru enthusiasts!
Welcome to the NASIOC.com Subaru forum.

You are currently viewing our forum as a guest, which gives you limited access to view most discussions and access our other features. By joining our community, free of charge, you will have access to post topics, communicate privately with other members (PM), respond to polls, upload content and access many other special features. Registration is free, fast and simple, so please join our community today!

If you have any problems with the registration process or your account login, please contact us.
* Registered users of the site do not see these ads. 
Thread Tools Display Modes
Old 08-24-2007, 09:49 AM   #1
Scooby Specialist
Member#: 73104
Join Date: Oct 2004
Chapter/Region: NESIC
Location: Mansfield, MA
2003 WRX wagon stg2
2011 Outback

Default OK to grind rear tranny crossmember for exhuast?

I'm trying to get a custom cat pipe to fit in with my exhaust, and there is a slight clearance issue with one side of the rear tranny crossmember, the cat hits it, and it messes up the fit at the donut flange (/| instead of ||). Would it be OK to grind out a bit of room there? How much would be safe? If looking at the crossmember from the side, the middle section looks like a n, and what I would need to do is to grind down part of one side of the n. Another option is longer hangers, but my SPT is low enough already with my STi wagon suspension, and I'd like to avoid the longer hangers as long as modifying the crossmember won't drop my tranny onto the tarmac.

As a public service announcement, a high flow cat in a race pipe is significantly louder than the stock 3rd cat, which I expected, but I'm also seeing higher boost levels. When I first took a drive with the highflow cat, my turbo wanted to spike a bit, but now it's settled down, and I've gained about a pound of boost at peak (16-17), and it holds at 14-15 until 7k.

Any feedback is greatly appreciated---
* Registered users of the site do not see these ads.
foxboroxt is offline   Reply With Quote
Sponsored Links
* Registered users of the site do not see these ads.
Old 08-24-2007, 09:44 PM   #2
Scooby Specialist
Member#: 147598
Join Date: Apr 2007
Location: Colchester, VT
95 Impreza 2dr


I had the same problem with my perrin downpipe on my 95 impreza.. I cut a chunk out of my tranny subframe and reinforced it with metal on the top... it works perfect...
kalescustom is offline   Reply With Quote

Thread Tools
Display Modes

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off
Forum Jump

Similar Threads
Thread Thread Starter Forum Replies Last Post
OK to Swap Rear Suspension from 98 Forester to 96 Legacy AWD Wagon? Bullwinkle Legacy Forum 8 01-23-2011 03:55 AM
STi Tranny Crossmember for my WRX swap GeneralTJI Private 'Wanted' Classifieds 1 06-13-2008 08:03 AM
Ok to remove rear O2 sensor? kumaWRX Factory 2.0L Turbo Powertrain (EJ Series Factory 2.0L Turbo) 20 11-19-2007 01:42 PM
Is it ok to do sti tranny mount without sti engine mounts? orvacian Transmission (AT/MT) & Driveline 6 12-03-2002 01:08 AM
OK to do STi tranny mount w/out engine mounts? Patrick Olsen Normally Aspirated Powertrain 14 06-12-2001 07:13 AM

All times are GMT -4. The time now is 07:33 PM.

Powered by vBulletin® Version 3.7.0
Copyright ©2000 - 2017, Jelsoft Enterprises Ltd.
Powered by Searchlight © 2017 Axivo Inc.
Copyright ©1999 - 2017, North American Subaru Impreza Owners Club, Inc.