bencs1

My 02 WRX seems to have developed a knocking sound that happens occasionally. The sound is towards the rear nearside and it makes a knock sound usually when I drive over/through a pothole (by accident) or sometimes when I turn right. It doesn't happen very often, so it's not a massive worry, but I just wanted to get a few opinions on it.

Also I have a completely standard exhaust system and there is not much of that Scooby burble that I crave, if I was to change just the backbox would I be able to get a bit more volume and burble, (It doesn't have to be loud just a nice burble). And if the backbox will do that have you got any recommendations.

Thanks in advance

bencs1

also does any know if ninja exhausts are any good.

vortech

Welcome to the Club! The rear shocks aren't particularly robust and can be the cause. Someone mentioned on here that there is metalwork behind the rear seats on the nearside that should really be welded, but Subaru do not do it. I get the knocking noise intermittently, doesn't happen all the the time and doesn't coincide with hitting potholes.

As for the exhaust i've got a Racebox rear silencer from Scoobyworld, not too loud so ok for long journeys. There was videos of the exhausts for sale at Scoobyworld when i bought mine.

bencs1

thanks vortech. I will check it out.

andykaz23

I have the Racebox also. It is better than standard, but really is incredibly subtle below 4K revs (at least it is within the cabin anyway).

Keith Collings

iTrader: (3)

I have the Scoobyworld Ninja DP Fastflow, decat centre section and Racebox BB - a very, very nice sound

Mrfastbaz

the knocking sound seems to me to be the rear shocks had to have both emine replaced a month or so ago under warranty on a 2005 wrx...much quieter now and the hopping at slow speeds has gone...