LT's What was your MPG before and afte???
98 TA A4, lid, catback 3.23s
Honestly, my mpg stayed around the same. I went from 20.xxx to 21. Thats all city driving, but the gain gas mileage wise was minimal.
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maybe if somebody else drove it the mileage would be better, but the sound is going to make you not care about the mileage.
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my old school sbc street/strip turd gen did get around 5 mpg until i changed carb setups,now it's a whopping 9-10. needless to say it hasn't been driven in a while.
All you would get out of them really is less ground clearance. Even though some headers tuck really well, you're still gonna lose some and IMO its not worth it if you arent trying to make your car faster.
Just my two cents though.


that's an impressive gain!
