03Impalals

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.

windycity89

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.

MDTAHOE

Exhaust and CAI will not make much difference. If you want to feel a difference a super charger is the way to go.

s34n

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.

Gwampa

I'm with MDTAHOE, find a supercharger and put the low restriction exhaust and K&N on too 'cause you're gonna need 'em then!

windycity89

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.

HotSauce6226

The U-Bend needs to be fixed. Straight pipe it. If you need help further modding PM me.