Hi all,
What are the implications of having a true straight through exhaust on a TD5. No centre box, no back box, no cat, no baffles at all. From manifold/downpipe all the way to out the back?
Will there be an issue with back pressure? Noise obviously. Emissions?
Ta
Seeing as the car would be illegal fines maybe the biggest problem.
Oh, why illegal?
Can provide a link to said legislation?
2 of my mates have total straight throughs on Landys with no issues at MOT or otherwise (2001 TD5 & 300TDI). I have decat/straight thru but kept the rear most box, no issues (2002 TD5). Another mate has a Nissan S15 total straight through again no issues.
With the decat/straight thru its loud enough, any more and I think it would be a pain on long journeys.
The MOTUK site seems to sound like if its just too loud and stupid then it will fail but not if its missing. Yet the first is very clear on the matter.
Anyway im sure there are many members on here running no boxes at all, side exhausts come to mind.
I've got a single silencer on my 300tdi. No issues with MOTs. The rumble as it idles up the drive when my wife returns home with it is very distinctive.
I'm not sure you'd see any more power. With no back pressure from silencers there may well be a reduction in BHP. Although l guess you could remap it to suit, on a rolling road.