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View Full Version : Can a AirFilter change an Exhaust Note


VTS_16v_Boy
1st March 2007, 10:42
Bit of a silly question but . . .

Can a change in AirFilter (Induction style) alter the note that a engine/exhaust makes?

It happened when I had a custom exhaust on my Cougar when I had the OE airbox it made one note and then once Id changed it for an open filter it changed slightly plus it seemed to bubble and pop more with a induction kit.

Same with my S Ive since moved back from an open cone to my Green enclosed and I really think the note has slightly changed (Not much just different).

Oh and its not the overlap of an induction roar over the top of a exhaust note its clearly different?

Is it possible?

Sounds abit of a :homme: but I would like a sensable answer please

chrisni1986
1st March 2007, 11:17
it'll change because you're gettin exhaust note and induction note, i had a 4-2-1 manifold, raceland induction kit and a supersprint backbox on my vtr and i could hardly hear the backbox over the raceland!

VTS_16v_Boy
1st March 2007, 12:42
Hmmmmm, not quite what I meant really - but I do agree with you.

GTI_Lee
1st March 2007, 17:28
It does yeah! I took off my induction kit today and put the standard airbox back on and my exhaust does seem to be a tiny, tiny bit quieter!

SNewham
1st March 2007, 17:29
slightly but not by a massive amount. The big change will happen with the combination of the two sounds ;)

jimbo06
1st March 2007, 17:35
Yep mate it changes it slightly.

beastgtir
1st March 2007, 19:16
Moving from pipercross to a custom filter set up that sits behind the headlight, It make my exhaust slightly louder. didnt really notice a different note though.

so i would say yes, an air filter can effect the sound of your exhaust

thadogg
1st March 2007, 23:06
On my old car after I fitted an induction kit the exhaust popped and fizzed more when changing down the gears.

RS_Matt
1st March 2007, 23:57
My exhausts on the old escorts changed dramatically with an induction filter but the saxo hasn't seen a difference with a replacement filter, havent opted for induction this time.