Cat questions
08-28-2017, 11:10 AM
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Car: 1987 GTA 350 auto
Cat questions
Hi all. I have stock exhaust on 87 gta 350. I have emissions problems and need a new cat. will a high flow cat help with emissions as much as a stock cat. I also believe the stock exhaust is 2 1/2 correct? Thanks in advance
08-28-2017, 11:18 AM
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Car: 1984 LG4 Camaro
Engine: 350 Roller Motor
Transmission: Level 10 700R4
Axle/Gears: Strange 12 bolt 3.42
Re: Cat questions
High flow cat by itself won't help - but if your cat is not working properly, a replacement will clean it up enough to pass - assuming the car has no other problems.
Stock exhaust should be 3" on a L98. Do you have dual or single cats? I am a Magnaflow dealer and have sold several dozen replacement cats to 3rd gen owners.
Stock exhaust should be 3" on a L98. Do you have dual or single cats? I am a Magnaflow dealer and have sold several dozen replacement cats to 3rd gen owners.
08-28-2017, 11:26 AM
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Car: 1987 GTA 350 auto
Re: Cat questions
yes..pretty sure cat is needed to pass smog. no other issues. its single cat. i believe its the original cat. so a high flow will lower numbers just as a stock one will?