If your car has dual cats and you are installing headers....
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Supreme Member
Joined: Jan 2001
Posts: 1,609
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From: www.thirdgentech.com
Car: 2004 GTO
Engine: LS1
Transmission: T-56
If your car has dual cats and you are installing headers....
You can order the Flowmaster after cat y-pipe that is normally included in their cat back kit that they refuse to sell separately from Summit Racing for $46.95. The part number is: 16078 and is on back order right now, but I already order one and they should be in within a couple weeks.
With the smoother transition than the factory "F" pipe, another 5HP/10TQ should be possible with this pipe over stock.
It looks like this:
With the smoother transition than the factory "F" pipe, another 5HP/10TQ should be possible with this pipe over stock.
It looks like this:
Supreme Member
Joined: Jun 2000
Posts: 1,295
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From: VA
Car: '91 Z28
Engine: L98 5.7L TPI
Transmission: 700R4
Axle/Gears: 323's
is that for the 3" kit? might have to get me one of those next time i'm out there... i just went to the summit store in sparks, nv. a couple of weeks ago... that was so cool... bought my american thunder cat-back kit but haven't had time to really mess with it yet, aside from the fact it'll be for later installation. just got it while i was there and didn't have to pay shipping...
KAM
KAM
:lala: 
Joined: Jul 1999
Posts: 10,950
Likes: 26
From: Orange, SoCal
Car: 1990 Pontiac Trans Am
Engine: 355 TPI siamesed runners
Transmission: Tremec T56
Axle/Gears: 12-Bolt 3.73
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