High flow cat or tune?
04-02-2007, 01:33 PM
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High flow cat or tune? hey guys i deleted the cat cause it got clogged. i have the LM1 in my 94Z A4. do you guys think i should get a tune to help this out or should i put a cat back on? it's running very rich. i can get a high flow cat from ebay for 60$. but then at the same time i can get a tune for 75$. at wait4meperformance.com. here where i live i don't have to have a catalytic converter. no emissions. but i really don't like the sound of it it's real raspy. performance wise it took away alot of my torque down low. it's supposed to help me out up top but it didn't do much. do you think i should just go witht he cat? or the tune? thanx in advance.
04-02-2007, 02:00 PM
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Yea, it makes it sound raspy, you can put in a resonator to help with that. Unless you're pushing a lot of HP, the high flow isn't too much help for a stock vehicle. So unless you need it to pass emissions, I'd put the money towards a tune.