Catalytic Converters?
Thread Starter
Instructor
Joined: Aug 2005
Posts: 112
Likes: 0
From: Lone Tree CO
Catalytic Converters?
I just found out that my 93 which would not pass emissions was all due to the catalytic converters are shot. The temp going in is 500 and coming out is 400 when I guess it should be hotter like 700.
They are saying $400.00 each for direct fit. The car is already loud enough due to the current aftermarket exhaust (it is stainless with dual tips, can't figure out which brand). The shop said that any high performance cat is going to make it louder again.
Does anyone have any suggestions of brands, want them to be direct fit?
They are saying $400.00 each for direct fit. The car is already loud enough due to the current aftermarket exhaust (it is stainless with dual tips, can't figure out which brand). The shop said that any high performance cat is going to make it louder again.
Does anyone have any suggestions of brands, want them to be direct fit?
Burning Brakes
Joined: Nov 2003
Posts: 935
Likes: 2
From: Beverly, NJ
Originally Posted by ken93vette
I just found out that my 93 which would not pass emissions was all due to the catalytic converters are shot. The temp going in is 500 and coming out is 400 when I guess it should be hotter like 700.
They are saying $400.00 each for direct fit. The car is already loud enough due to the current aftermarket exhaust (it is stainless with dual tips, can't figure out which brand). The shop said that any high performance cat is going to make it louder again.
Does anyone have any suggestions of brands, want them to be direct fit?
They are saying $400.00 each for direct fit. The car is already loud enough due to the current aftermarket exhaust (it is stainless with dual tips, can't figure out which brand). The shop said that any high performance cat is going to make it louder again.
Does anyone have any suggestions of brands, want them to be direct fit?
Team Owner
Joined: Dec 2000
Posts: 90,675
Likes: 304
From: SE NY
Cruise-In II Veteran
The Catco from Summit are $55 but not likely to be a direct fit.
My 2000 TPIS catalog does not list cats for Vettes beyond the '91 L98, which are around $215. You might contact TPIS so see if they now have a direct fit for '93 Vette.
My 2000 TPIS catalog does not list cats for Vettes beyond the '91 L98, which are around $215. You might contact TPIS so see if they now have a direct fit for '93 Vette.
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Burning Brakes
Joined: Aug 2000
Posts: 984
Likes: 1
From: Cincinnati OH
I bought a Catco direct fit for my LT1 a few years back, which really was a direct fit. It was $150, but that was in 2002. While it was made to bolt right up, the bolts on the three bolt flange on the manifold side were not drilled right, I had to enlongate one of the holes so that I could get all three bolts into the manifold. Also, the holes on the other end where the cat-back bolts in were not tapped, so I had to buy bolts/nuts rather than just bolt it in using the stock bolts. Also, the case was a lot smaller than the stocker, not sure if that's good or bad.
Burning Brakes
Joined: Oct 2000
Posts: 818
Likes: 29
From: Nashua NH
Originally Posted by 65Z01
The Catco from Summit are $55 but not likely to be a direct fit.
Not true. If you read the catalog correctly, they are direct fits and they start at $55. I bought a direct fit for my '91 recently and it cost about $127, as I remember. It went right on with no problems. That doesn't mean that they indeed have a direct fit for the '93, but you can go to their website to find out for sure.
My $0.02
Jim S.
Large Impressive Member
Joined: Jul 2003
Posts: 65,811
Likes: 71
From: Good health is merely the slowest possible rate at which one can die
St. Jude Donor '04-'05-'06-'07
Originally Posted by bogus
I will be honest, I don't think anyone makes a direct fit for the LT1... they are all cut and weld.
Check Carsound. They flow real good.
Check Carsound. They flow real good.
I don't think you'll find a direct fit, other than stock. NAPA has good replacement cats in 3" for well under $100. If you pay a muffler shop to fit them you should still be way ahead, money-wise, with a universal replacement type. Also these types are smaller, giving you more working room for changing the fuel filter and other work in those areas.
Team Owner
Joined: Aug 2000
Posts: 40,156
Likes: 45
From: San Pedro CA
Originally Posted by gpvette7692
You can order Magnaflow direct fit convertors from Summit racing equipment part numbers MPE-23408 and MPE-23409 for $143.00 each. 
Noted!
Large Impressive Member
Joined: Jul 2003
Posts: 65,811
Likes: 71
From: Good health is merely the slowest possible rate at which one can die
St. Jude Donor '04-'05-'06-'07
Originally Posted by bogus
Corvette Kid - Apparently, we are wrong... very interesting find! Noted!
Noted!
Good find. And how'd we miss that the first time? I can blame mine on old age....
