burnhamshaun

iTrader: (2)

I keep wanting my cossie to sound louder not sure why :-( is it wrong of me too want this it has full stainless not sure what bore size I'd guess 3' as that's what the tail pipe is it has back box and center box would it be a bad thing to remove center box

R5FORD

iTrader: (1)

i have no centre box and its very loud, at 4000rpm it is 104db ( stationary)

Danny.

iTrader: (2)

I have no centre box either, sounds the nuts on full chat but quite similar to when it had a centre box on idle

burnhamshaun

iTrader: (2)

I think it's because I've had a few jap cars Subaru with hks loud exhaust and an rx7 twin turbo full turbo back 4' no boxes and the cossie sounds so quite but I also don't want it to sound like a civic or Saco with a massive exhaust

burnhamshaun

iTrader: (2)

Also are there any downsides by removing box

R4N SS

iTrader: (6)

i hated it when i took the middle box out of mine but it did sound nice on boost tho. It was too loud for me and i put the middle box back in.

Take the middle box out and get a 4" back box - that will do the trick

burnhamshaun

iTrader: (2)

Lol lol I'm sure it would if it wernt so expensive I would go and have center box changed for a straight bit of pipe but if I do it and don't like it it's prob 50-100 down the drain p.s your plug was posted this morning matey

R4N SS

iTrader: (6)

yep, thats what happened with me - waited money on the pipe and hated it

cheers for the bung

lukeytheduke

doesnt it have any affect on back pressure?

burnhamshaun

iTrader: (2)

Would like to know if there are any defects if I was to do this as I don't want to cause any damage

lukeytheduke

yer i got 2 middle boxes i believe and always wanted to take them out to give it more of a racey sound. It wont cause any damage but im sure back pressure will be effected? Please can someone confirm?

burnhamshaun

iTrader: (2)

Jeëšüś 2 that must be quiet lol

Danny.

iTrader: (2)

I kept catching my centre exhaust on the floor to the entrace of my garage which is one of the reasons I got rid of mine.

burnhamshaun

iTrader: (2)

And whats the outcome mate does it sound better/nicer or crap where abouts in London are you maybe I could come here it as I work all over s/e London lol

ajamesc

theres a big wright up on exhauts in a redline mag we have at work from a company who makes race exhaust and they say with a turbo car there is no such thing as a bore that is to big plus a turbo car needs no back pressure they say the only thing back pressure helps with in a turbo car is stopping oil passing by week turbo oil seals causing smoke!

Danny.

iTrader: (2)

I think it sounds alright, i've only got a 3in scorpion tailpipe so I think that stops it from sounding too lairy

I'm up in north london mate

lukeytheduke

Nar mate it sounds real nice esp on idle and boost. But i got some copy of scorpian exhaust with big bore 4 tail pipe but i want it to sound deep all the time

lukeytheduke

Oh right i thought back pressure helps power the turbo but im no expert

R5FORD

iTrader: (1)

Go for a 3" mongoose with no center box and a 4" back box

ajamesc

back pressure is only important on non turbo cars going by the wright up in the mag

burnhamshaun

iTrader: (2)

So would there be gains then or no difference

R4N SS

iTrader: (6)

and i just happen to have a nice Mongoose 3" back box for sale for 50 quid if you want it as havent listed it yet.

lukeytheduke

so how much would it set me back to replace the center boxes with straight through pipe?

burnhamshaun

iTrader: (2)

Depends really on whether you want it reversible but I'd hazard a guess at £130+

lukeytheduke

for a little bit of pipe? And for a little bit of welding?

Danny.

iTrader: (2)

I brought the pipe and clamps from burton's. Didn't cost more that £50 iirc

burnhamshaun

iTrader: (2)

Really what is that direct replacement pipe bolt straight up stainless

Danny.

iTrader: (2)

Yeah, I just ordered a 1 metre stainless length of 3in pipe and cut it to fit.

burnhamshaun

iTrader: (2)

So might be worth giving this a go then see what it sounds like