Cat converter ??
Le Mans Master
Joined: Jun 2006
Posts: 5,642
Likes: 5
From: One day you're a Comet...the next day you're dust... Arkansas
YES! but some carry outrageous prices. Shop around, you can pay $30 up to $300. It's one of those things where you DON"T always get what you pay for.
Team Owner
Joined: Sep 2001
Posts: 62,127
Likes: 1,727
From: Athens AL
C7 of the Year - Unmodified Finalist 2021
C4 of Year Finalist (performance mods) 2019
No, not on an LT1. Your cats are pretty good in comparison to the L98.
I would not change them until/unless you go to longtube headers, in which case you'll probably have to for the headers to fit, or if you are having problems with the car that might indicate a clogged cat (loss of power).
I would not change them until/unless you go to longtube headers, in which case you'll probably have to for the headers to fit, or if you are having problems with the car that might indicate a clogged cat (loss of power).
Thread Starter
Advanced
Joined: Jan 2007
Posts: 53
Likes: 0
From: Charleston SC
Catco
FlowMONSTER
Magnaflow
I don't think there is anything wrong with them, but they are REALLY rusty and I think there could be a leak. Brittle rusty is some places.
If I have to replace them, I want them to be AS good or BETTER than the stock LT1 coverters.
Any brands, advice? The price range is crazy... $35 and up.
Thanks.
FlowMONSTER
Magnaflow
I don't think there is anything wrong with them, but they are REALLY rusty and I think there could be a leak. Brittle rusty is some places.
If I have to replace them, I want them to be AS good or BETTER than the stock LT1 coverters.
Any brands, advice? The price range is crazy... $35 and up.
Thanks.
Le Mans Master
Joined: Jun 2006
Posts: 5,642
Likes: 5
From: One day you're a Comet...the next day you're dust... Arkansas
I used Magnaflow (Carsound) on my L98. Catco has a good rep. Check eBay there are usually better prices there. The $35 unit may be fine but you may need to weld them on. If they are brittle rusty outside they could be pretty crappy inside. I replaced mine at 48K. Make sure to leave you O2 sensors.
If you don't mind take a minute and fill out your profile.
If you don't mind take a minute and fill out your profile.
Team Owner
Joined: Dec 2000
Posts: 90,675
Likes: 304
From: SE NY
Cruise-In II Veteran
If your LT1 is stock at 300chp you need 660cfm of total exhaust flow or >330cfm per side and so per cat. If you plan to mod your LT1 I suggest looking for ~450 cfm of flow from each cat.
So, when selecting a cat, look for:
->330cfm flow
-fit to the front Y & in the space available
-best price
So, when selecting a cat, look for:
->330cfm flow
-fit to the front Y & in the space available
-best price
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Thread Starter
Advanced
Joined: Jan 2007
Posts: 53
Likes: 0
From: Charleston SC
Also...
What about these:
http://flowmonster.com/mm5/merchant...._Code=metallic
They have a metallic substrate instead of the ceramic at a good price, but never heard of them until I started looking.
Thanks.
http://flowmonster.com/mm5/merchant...._Code=metallic
They have a metallic substrate instead of the ceramic at a good price, but never heard of them until I started looking.
Thanks.
Race Director
Joined: Jan 2002
Posts: 12,261
Likes: 85
From: O'Fallon Missouri
What about these:
http://flowmonster.com/mm5/merchant...._Code=metallic
They have a metallic substrate instead of the ceramic at a good price, but never heard of them until I started looking.
Thanks.
http://flowmonster.com/mm5/merchant...._Code=metallic
They have a metallic substrate instead of the ceramic at a good price, but never heard of them until I started looking.
Thanks.