DIY to replace both exhaust downpipe flexi’s
Re: DIY to replace both exhaust downpipe flexi’s
I think so, yeah. But if you buy a 63mm flexi, the flexi is a lot smaller than 63mm which'll cause a restriction (bad on a turbo motor), which is why I used a 76mm flexi and then welded a reducer on to bring the pipe size down to 63.
"not a professional engineer, mechanic and mechanist"
Re: DIY to replace both exhaust downpipe flexi’s
I've just re-instated the pictures hopefully they can be seen again.
2003 RS6 MTM 568
Re: DIY to replace both exhaust downpipe flexi’s
Yes, thanks alot
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Mugello Blue C5 RS6 Avant
Viper Tuning ECU/TCU
MTM Bimoto wheels 9,5 x 19 ET 30 LK 5x112 with 275/30/19 tyres
MTM exhaust system cat back 4-pipe with throttle valves in 2 pipes, control
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Mugello Blue C5 RS6 Avant
Viper Tuning ECU/TCU
MTM Bimoto wheels 9,5 x 19 ET 30 LK 5x112 with 275/30/19 tyres
MTM exhaust system cat back 4-pipe with throttle valves in 2 pipes, control
Yellow Koni's
Porsche 959, gone but not forgotten.
Fight ALS disease https://www.youtube.com/watch?v=wGFDWTC8B8g
Re: DIY to replace both exhaust downpipe flexi’s
Skyegtb, do you have part numbers of the flexis you used?
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Re: DIY to replace both exhaust downpipe flexi’s
Hey dude, it was this one: https://www.ebay.co.uk/itm/2-375-x-6-60 ... Sw5KFbPMj7
2003 RS6 MTM 568
Re: DIY to replace both exhaust downpipe flexi’s
Cheers. So did that ID of 60.3mm fit over the existing pipe??
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Re: DIY to replace both exhaust downpipe flexi’s
Yes, it was a perfect fit, but remember that I have Milltek downpipes not OEM
2003 RS6 MTM 568
Re: DIY to replace both exhaust downpipe flexi’s
Ah yes, sorry. Forgot that!
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Re: DIY to replace both exhaust downpipe flexi’s
The best advice I can give, if you were attempting this, would be to completely remove the old flexis, then accurately measure everything up - all lengths, diameters etc, then simply head over to eBay and you will find the correct flexis sold by one of the sellers there. 0.3mm is the standard oversize to allow fitting the new flexi over the existing pipe, but if that is not correct as per your measurements a lot of the companies will custom manufacture you a flexi very often for no extra cost.
2003 RS6 MTM 568
Re: DIY to replace both exhaust downpipe flexi’s
And, be really mindful that exhaust back pressure is a killer on a turbo motor. The 63mm flexis I got were a restriction, hence I used 76mm ones and sleeved the tubes down.
"not a professional engineer, mechanic and mechanist"
Re: DIY to replace both exhaust downpipe flexi’s
Good thinking.
Daytona RS6 C5 Avant. Viper'd, Billies, Waggers, MTM box brain, C6 stoppers, xcarlink, R8 coolant cap (woohoo)
///M3 E46 | XC90 (V8, natch) | Passat GTE | RR Classic V8 flapper
"The major difference between a thing that might go wrong and a thing that cannot possibly go wrong is that when a thing that cannot possibly go wrong goes wrong it usually turns out to be impossible to get at and repair."
///M3 E46 | XC90 (V8, natch) | Passat GTE | RR Classic V8 flapper
"The major difference between a thing that might go wrong and a thing that cannot possibly go wrong is that when a thing that cannot possibly go wrong goes wrong it usually turns out to be impossible to get at and repair."
Re: DIY to replace both exhaust downpipe flexi’s
The flexis I fitted were (internal diameter) the same as the Milltek originals. I didn't like the way they were fitted and the big step down to 60mm on the pipes, but at the time I was just happy to put it back as it originally was. I did wonder why they stepped it down so much, perhaps there were space issues?
2003 RS6 MTM 568
Re: DIY to replace both exhaust downpipe flexi’s
Unfortunately I don't have the luxury of being able to strip everything down and measure the necessary sizes before ordering. Ideally would need the new flexis to replace the old ones in one visit.skyegtb wrote:The best advice I can give, if you were attempting this, would be to completely remove the old flexis, then accurately measure everything up - all lengths, diameters etc, then simply head over to eBay and you will find the correct flexis sold by one of the sellers there. 0.3mm is the standard oversize to allow fitting the new flexi over the existing pipe, but if that is not correct as per your measurements a lot of the companies will custom manufacture you a flexi very often for no extra cost.
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