Turbocharging - exhaust diameter?


Here a couple of shots one mine done by Billy.

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That looks like cracking work and at a silly cheap price! Will definitely have to look into using his services in the near future. Thanks lads :)
 
You will want a 3" ideally for 350hp.
Have seen cars with 2.5" run 350hp but your stressing everything with extra heat and it isn't as efficient with 2.5"
As said anything over about 300-305 you want to get a 3" on there to maximise gains.
 
godfridge said:
How loud was that's system in the picture?
No centre box I see
Click to expand...

Loud but could be ok for going past the cops if needed - but yeah a WOT is was loud.

Hopefully be hearing it this year, going to build the car back up.
 
My B18c turbo is running 340bhp with 3inch system all the way through. Nice tone until my screamer pipe kicks in and its like a fighter jet on full afterburn :)
 
I must admit, I wasn't a fan of my screamer and had it plumbed in. I love the sound of mine now tho. Just hear the whistle when you floor it.
Still gets people craning their necks to see.
 
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