Any aftermarket air filters or exhausts>

SmartBill · 03-17-2008, 09:03 PM

just curious if any owners have tried a K & N air filter or aftermarket larger exhaust system? anything out there to increase power and mileage?

**SMART** · 03-17-2008, 09:32 PM

Yeah, smarttech has a K&N from on his car!

SmartPassion · 03-17-2008, 09:45 PM

I was told by K&N their current offering is a stock replacement.

evoluzione · 03-17-2008, 10:10 PM

here is a cold air intake i made for my car:

edit: sorry, i just realized that you were asking about the 450, not the 451.

regards,

ken

**SMART** · 03-17-2008, 10:51 PM

Quote:

Originally Posted by evoluzione

here is a cold air intake i made for my car:

regards,

ken

Ken, how does that sound? Does it have a nice howl? Also, is it actually getting any cool air?

evoluzione · 03-17-2008, 11:00 PM

i really don't notice much noise until you are really reving it (it reminds me of a benelli sportbike growl - also a three cylinder). as to the cold air, just to the left of the filter is an outside duct.

regards,

ken

idahosmart · 03-18-2008, 09:32 AM

I have had the K&N air filter on my smart for about 18 months. Hard to tell if it made any performance improvements, but I like having a reusable lifetime air filter.

Tom

SmartTech · 03-19-2008, 05:21 PM

The filter i have is for the 451 flat panel style. i can get them but its a special order type deal

micromachine · 03-19-2008, 09:23 PM

I initially ran a K&N filter on my 450 after I bought the car. I don't know what the exact bhp increase was but there was a noticeable feel in the torque.

I recently did a major transformation (roadster turbo, janspeed exhaust, venom induction and remap) and am no longer in need of it. If you are interested I can sell you the one I have for $20. It was used for about 5000 miles.

I also have a brabus sport exhaust available if interested. Adds 5bhp. Used for about 5000 miles as well. More power, a bit louder than the stock exhaust but sound nice.

Commander Cody · 03-20-2008, 06:40 AM

Do we not have in the USA an air filter, other than stock, to fit in the 451's air box with the lid clamped down? Part #/Item # ? I've seen on the Evilution site a replaceable air filter that fitted perfectly. Do we know of one here in the US of A that will fit?