yet another cat question...or questions rather
Thread Starter
|
Elder User
Joined: May 2002
Posts: 794
Likes: 0
From: American by birth, TEXAN
yet another cat question...or questions rather
ok, i have read all the posts concerning cat converters for the past year, i have read through my haynes and chiltons, and have searched online for direct cat replacements for the stock ones on my 1990 F-150 w/ 5.0 EFI ...i cannot seem to find a satisfactory answer to my questions of
a) what converters are there that will replace the two that i have stock with one?
b) theres a lot of hype about high flow, is this true or not?
c) if so, what brands are not good to go with for cats?
frustrated about posting yet "another" cat question...
thanks in advance
eric
a) what converters are there that will replace the two that i have stock with one?
b) theres a lot of hype about high flow, is this true or not?
c) if so, what brands are not good to go with for cats?
frustrated about posting yet "another" cat question...
thanks in advance
eric
Elder User
Joined: Feb 2003
Posts: 887
Likes: 0
From: MN
High Flows do flow better than stock. Also sound much nicer. If you're looking for your truck you would want a cat that is certified as 3 way with air, 2-1 replacement. The 3 way means the first CAT cleans up the NOx and the second CAT deals with CO and HC with air injection infront of it to aide in the reaction. 2-1 replacement is simply you can replace both stockers with a single aftermarket CAT. CATCO seems to be a good source. You can get direct fit setups with the whole y-pipe and CAT. These are in the $200 and up range. There are also universal fit and universal fit with air tubes. These run $50- $100. If you can fabricate a pipe to go were the first CAT is to make a single outlet, you could go with a universal fit with an airtube. You would need to attach the airtube to the CAT. Not a real big deal. 
Super Moderator
Joined: Oct 2002
Posts: 8,547
Likes: 6
From: MA
The only true two for one replacement will be This. Yes, high flows work! (I have that Bassani pipe in question). If you are going to go do all that work removing the stock cats and installing one, why not do a simple bolt in? The pipes are larger than stock, and the catalytic convertor on it is a true 3" flow through, and its 50 state legal. Bassani has super high quality and designs. Just an idea.
Rich
Rich
Super Moderator
Joined: Oct 2002
Posts: 8,547
Likes: 6
From: MA
Yes, it retains all factory bungs. This pipe is made to be a perfect bolt in, so if youre current exhaust works with your stock Y pipe, then this will fit fine. What is the size of the catback (rather, the pipe that leads from the Y to the muffler)? Bassani should include a step up adapter to 3".
Rich
Rich
Thread Starter
|
Elder User
Joined: May 2002
Posts: 794
Likes: 0
From: American by birth, TEXAN
its not a catback just a 40 series flow, and the pipe connected is slightly larger than stock. it is welded about midway between the second cat and the muffler...i dunno what the stock pipe size is for my truck...
Super Moderator
Joined: Oct 2002
Posts: 8,547
Likes: 6
From: MA
I think the stock might have been 2.25" (at least my 96 bronco was, and I believe the F/Bronco used the same diameters). The whole pipe is slightly larger, or just the step up to the opening of the muffler? The bassani is a slip fit style, and comes with some hefty clamping bands.
Rich
Rich
Trending Topics
Thread Starter
|
Elder User
Joined: May 2002
Posts: 794
Likes: 0
From: American by birth, TEXAN
the whole pipe leading to the muffler after the weld between the muffler/cat conv. when i got the new muffler they added a 2ft section leading to the muffler...slip fit meaning i slip it over a portion of the pipe and clamp down with the bands?
FTE Stories
Ford Trucks for Ford Truck Enthusiasts
Rezvani's Latest Post-Apocalytic Monster Is a Ford F-150 Raptor Underneath
Verdad Gallardo
Top 10 Most Expensive Ford Trucks Ever Sold on Bring a Trailer
Joe Kucinski
2027 Ford Super Duty Buyer's Guide (Every Model, Engine, & Package)
Brett Foote
Top 10 Ford Truck Tragedies
Joe Kucinski
AEV FXL Super Duty - the Super Duty Raptor Ford Doesn't Make
Brett Foote
Lobo Vs Lobo: Proof the F-150 Lobo Should Be Even Lower!
Michael S. Palmer
Ford's 2001 Explorer Sportsman Concept Looks For a New Home
Verdad Gallardo
10 Best Ford Truck Engines We Miss the Most!
Joe Kucinski
2026 Shelby F-150 Off-Road: Better Than a Raptor R?
Brett Foote
Super Moderator
Joined: Oct 2002
Posts: 8,547
Likes: 6
From: MA
You would probably need the supplied adapter (i think its 2.5-3, or something. I dont remember exactly because I didnt have to use it). That adapter should slide over the end of the Y pipe, then you clamp it. For a 100% accurate answer, you should get the pipe diameter then give bassani a call if youre interested in their pipe.
Rich
Rich
Thread Starter
|
Elder User
Joined: May 2002
Posts: 794
Likes: 0
From: American by birth, TEXAN
thanks Rich you saved me alot of time with all my questions, and i am thinking real hard about spending the $350. i think itd be a great next mod to my truck and you give it a thumbs up so that sets me at ease...ill give em a call
Thread
Thread Starter
Forum
Replies
Last Post
gtro8098
1987 - 1996 F150 & Larger F-Series Trucks
19
Sep 19, 2006 11:09 PM
jwchatm
1987 - 1996 F150 & Larger F-Series Trucks
6
Aug 10, 2002 05:08 AM