TBI Throttle Body Injection discussion and questions. L03/CFI tech and other performance enhancements.

Free Mods?

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Old Mar 20, 2002 | 03:34 PM
  #1  
BlackBird89's Avatar
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From: North Jersey
Free Mods?

Hey guys, I'm new to the board and I'm trying to find some cheap (if not free), effective, and safe mods for my 305 TBI in my '89 Firebird. I'm sure you guys have seen about ten million posts on this subject, but I didn't see them so any advice would be great.
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Old Mar 20, 2002 | 03:52 PM
  #2  
CODY BEHNKE's Avatar
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Joined: Jul 2001
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From: NEBRASKA
Not much is free, The only real cheap mod is a open element air cleaner.

Heres what I all did with my 1991 Formula TBI 5-speed

GM Dual snorkel Air cleaner
K&N filter and breather element
Hypertech chip and power pullies
Hypertech low temp fan switch and 180* T-stat
Larger OEM y-pipe
Catco Cat
Dynomax cat-back
AC Rapidfire plugs
MSD coil, cap, rotor and wires

You could go with a open element air cleaner but then it will look very carburated, My car was in a couple of shows so it needed to look good too. A dual snorkel cleaner is $200 a open element is $30

The exhaust is very small stock, if you don't use headers at least get a larger y-pipe, cat and cat-back system.

Last edited by CODY BEHNKE; Mar 20, 2002 at 03:55 PM.
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Old Mar 20, 2002 | 05:12 PM
  #3  
Minion's Avatar
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From: Michigan
Most of the 'Free mods' are the ones listed on the ultimate TBI tech article.

https://www.thirdgen.org/newdesign/t...imatetbi.shtml
https://www.thirdgen.org/newdesign/t...matetbi2.shtml

They aren't erxactly free, but they are relatively inexpensive.

Minion
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