Flat4x4-again

iTrader: (1)

Two really basic questions - sorry if the answers are obvious :-


1. Does a non-resonated centre pipe (like a Hayward and Scott 2.5") make any difference to your chances of passing an MOT ?
2. If I keep everything standard for now (Subaru 2.5" front pipe and backbox) do I just get a bit more burble but nothing that loud ?


Thanks

1509joe

iTrader: (2)

1. No
2. In my opinion makes them tinny sounding and a bit too loud but not in a nice way.

Flat4x4-again

iTrader: (1)

Ok - I want to keep the standard twin-pipe backbox and I can't afford the £350 H&S want for a better twin pipe one. A gamble then on the de-resonated centre...

1509joe

iTrader: (2)

Can't help you there boss first thing most people do away with might be alright with standard twin box.

Gear Head

iTrader: (2)

A backbox is what will really change the exhaust note. a de resonated centre will just m crease the volume and 'boom' when on motorways. No point just changing the centre section.

Flat4x4-again

iTrader: (1)

Ok thanks

Davec30

iTrader: (2)

My exhaust was a sports cat with H&S straight through middle section to a H&S back box. This was too loud for me and wanted a more standard sound so opted to buy an aftermarket standard back box.

Like you, I would like the H&S twin backbox but don't want my exhaust any louder. It is much quieter in the car so much so I can hardly hear the exhaust at all within the car. I quite like the noise the exhaust makes now.

No booming what so ever.

Hope this helps.

Dave

Flat4x4-again

iTrader: (1)

Dave

Just to be clear, you have a Sports Cat, H&S Centre and standard backbox ?
I should be fine then !

What kind of H&S backbox did you have then - the 'Afterburner' or the single tailpipe 3" or 2.5" ?

Davec30

iTrader: (2)

Yes mate. 2.5 system so the standard backbox went straight on. I had the jap style angled H&S back box which my neighbours loved... So I then went to one like a prodrive which was quieter but I was fed up of the noise to be honest ( old age lol ) so got a standard one.

You'll be fine or at least mine is lol

topshot

iTrader: (4)

I have just fitted a decat centre section without resonator and it made very little difference to in car noise. It sounds louder and much nicer outside the car when under full throttle.

Flat4x4-again

iTrader: (1)

Cheers