ImpalaWhile undergoing many facelifts in its history, the Impala has proved itself to both civilians and police forces as one of the most capable 4-door cars GM has ever offered. Currently moving towards its 10th generation the Impala is one of the longest lasting and popular models.
I put a K&N filter on it which sounds very nice compared to the stock. What can I do to this 3800 that wont cause problems with the tranny or exhaust. I have thought about putting a dual exhaust system on it. I have heard that you can do a lot of mods to these engines. I have a feeling I would be best off with just the air intake and a dual exhaust. Any advice is greatly appreciated.
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Hey i got a 05 LS (which has the 3800 series II) and i researched quite a bit n so far i have a k&n CAI and a flowmaster original 40 series single in dual out. I still havent received them yet but from what i heard it will sound pretty mean. The only thing i didnt do was delete the resonator and the u-bend. The u-bend doesnt make much difference but the resonator makes it sound a lil louder i dont think im gonna do it because i've heard they sound worse.
Exhaust and CAI will not make much difference. If you want to feel a difference a super charger is the way to go.
ASE Master Tech, L1 Advance Engine Performance certified
I will not answer repair questions by PM, if you would like my input you can PM me and ask me to reply to your public thread.
resonators dont make it louder. it actually makes it quieter. i had one on my truck last year with my 40 series muffler instead of buying like a 50 series muffler to make it quieter. i was stupid and listened to my sisters bf saying my exhaust was too loud with only a 40series. it made it quieter in the cab i finally said f**k it and put on a 10 series muffler.
You make life rough on your motor, your motor will make life rough on you...
Well yea if money wasnt an option then id go with the supercharger as well and some headers new piping new spark plugs and wires. I dont think i said resonators make it louder? I said deleting the u-bend and the resonators make it sound louder.