already got a decat and im tore between a milltek back box and just a straight pipe with a oval stainless tip. Has anyone got eithee of these done and can shed some light on what sounds better?
milltek or straight through on a mk1 leon fr tdi
- Thread starter martin99uks
- Start date
Hi mate, I've got a miltek cat back non resonated on standard exhaust and it sounds good when booted but quiet when town driving.
I've heard that if you have a straight through pipe then it will pull oil through the turbo !!
Also with the new MOT regs then if you remove a part of the emissions system then it's a fail
I've heard that if you have a straight through pipe then it will pull oil through the turbo !!
Also with the new MOT regs then if you remove a part of the emissions system then it's a fail
cut out the back box tonight and it sounds quite good and pulls a bit better. Any more info on oil being pulled from the turbo. got me worried now haha. ive kept the old back box anyway so it can be welded back on at any time.
That's really surprising to hear. When I got a MOT with my decat it failed emmissions same with my mk4 golf which had been decated aswell.
From my understanding ( I maybe wrong ) it can fail on it not being there.
My lc past emissions with a decat , but they failed it as 'visually' it wasn't there .
My guessing dervs maybe different , but surely you can't have one rule for one and another rule for another ??
Like I say I maybe wrong .
Maybe someone could shine some light on the subject .
My lc past emissions with a decat , but they failed it as 'visually' it wasn't there .
My guessing dervs maybe different , but surely you can't have one rule for one and another rule for another ??
Like I say I maybe wrong .
Maybe someone could shine some light on the subject .
must have been a smoke test then. dont think it matters. if it had all the components still in the exhaust then it wouldve passed.
my brothers the mot tester....
Anyway if anyone has any information about the turbo oil seals with a full straight through that would be great.
Anyway if anyone has any information about the turbo oil seals with a full straight through that would be great.
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my turbo has play but doesnt touch the housing at any angle. it also moves back and forth and ive got no history of the turbo being changed or rebuilt at any time. running quantumn longlife III on 176k
Never heard of straight through pipe pulling oil through, was told that dervs dont have back pressure too???
had my straight through for years and other than it droning sometimes (down to Red poly bush dog bone mount) don't have any problems, 3" downpipe into 2.5" straight through Milltek with GTB2260.
Also passed MOT with no problems albeit at my local friendly garage...
had my straight through for years and other than it droning sometimes (down to Red poly bush dog bone mount) don't have any problems, 3" downpipe into 2.5" straight through Milltek with GTB2260.
Also passed MOT with no problems albeit at my local friendly garage...
explain the drone you have. i have a yellow polybushed dogbone and have a drone between 1800-2500 rpm and 1/2-full throttle.
exactly what you have, didnt really do it before i fitted the dogbone, my mate has the yellow one fitted and he's OK so i'm going to fit it as well and see if it's any better
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