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+--- Thread: Straight through pipe from midbox (/showthread.php?tid=25041)
Straight through pipe from midbox - PugRory - 04-07-2014
Looking at getting rid of my backbox and getting a straight pipe from the mid box on my 1.8. All I want to know is, will this effect fuel economy at all? will I lose any power?
RE: Straight through pipe from midbox - welshpug - 04-07-2014
It will sound awful.
best keeping the rear box but removing mid box if you must, it's a lot easier anyway
RE: Straight through pipe from midbox - PugRory - 04-07-2014
(04-07-2014, 02:39 PM)welshpug Wrote: It will sound awful.
best keeping the rear box but removing mid box if you must, it's a lot easier anyway
Why would it sound awful? and it's something to consider
RE: Straight through pipe from midbox - powerandtorque - 04-07-2014
It will be very loud running with just a mid-box on a petrol 306.
It works on TD's / HDi's as the turbo sort of acts as a silencer, but you don't have that and since the mid-box is stright through, it's going to be distinctly noisy. Remove your backbox, start the engine and give it a bootful of revs if you want to see what it'll sound like... and then re-fit the backbox when you realise that you couldn't tolerate that everyday (nor your neighbours!)
RE: Straight through pipe from midbox - bashbarnard - 04-07-2014
Did a straight through from cat back on an old corsa once( was 17 at the time) sounded crap. Removed almost immediately
RE: Straight through pipe from midbox - RetroPug - 06-07-2014
On this engine it'll likely be loud enough to get you pulled over.
RE: Straight through pipe from midbox - Jonny81191 - 06-07-2014
On my 2.0 16v, I had a decat to Bosal midbox (straight through design) to a straight through peco backbox. On the cheap you could use a HDi midbox as the backbox. It sounded awesome but could be driven quietly. Best of both worlds!!