E53 4.4i N62 Muffler Retrofit

[aheckenast]

Just figured I'd put this up for the 3.0i guys. I installed & can conclude later e53 N62 4.4L mufflers are a direct fit for e53 3.0i. My X5 is a 2003 3.0i manual trans pre-facelift model, I knew pre-facelift M62 4.4/4.6i mufflers are direct fit but wasn't sure on later N62 4.4i, took the chance on them.

Very quiet though not much of a difference from stock & this is with headers(no cats) installed. Quad tips look nice though.

Might cut open the mufflers & remove baffling inside then weld them closed at a later date.

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[Overboost]

Looks great. Don't forget the cutout trim for quad tips to finish off the lower rear valance.

[aheckenast]

Originally Posted by Overboost

Looks great. Don't forget the cutout trim for quad tips to finish off the lower rear valance.

Thanks didn't know there was another piece to go with it. Might not bother though, this is a hard driven high mileage beater haha.

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[Bdc101]

Originally Posted by aheckenast

Thanks didn't know there was another piece to go with it. Might not bother though, this is a hard driven high mileage beater haha.

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I have had 4.6iS mufflers on my 2003 M54 for three years now and you honestly can't tell at all that the trim is missing. Though the tips on my mufflers might obscure the view since they are a lot bigger.



Great mod, thanks for posting. Are the pipes any bigger on yours thank the stock ones? Mine are 10mm bigger than stock, but the mufflers are exactly the same as far as Ican tell, just bigger tips.

[aheckenast]

Originally Posted by Bdc101

I have had 4.6iS mufflers on my 2003 M54 for three years now and you honestly can't tell at all that the trim is missing. Though the tips on my mufflers might obscure the view since they are a lot bigger.



Great mod, thanks for posting. Are the pipes any bigger on yours thank the stock ones? Mine are 10mm bigger than stock, but the mufflers are exactly the same as far as Ican tell, just bigger tips.

All 4.4i & 3.0i piping seems to be the same size, makes sense that both mufflers fit either center resonator. I know 4.8iS have larger diameter pipes with different angle flanges.

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[keysper]

It does look nice and smmoth send us clip of its note running

[aheckenast]

Originally Posted by keysper

It does look nice and smmoth send us clip of its note running

Doesn't sound like much at idle, very stock. Only real difference from original mufflers is a slightly more aggressive sound when you step on it, pretty low volume though.

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[Clavurion]

I also did this mod on my facelift 3.0d. I removed DPF and installed middle muffler on it's place. Moved exhaust pressure and temp sensors from DPF and installed them on the muffler pipe.

[aheckenast]

Originally Posted by Clavurion

I also did this mod on my facelift 3.0d. I removed DPF and installed middle muffler on it's place. Moved exhaust pressure and temp sensors from DPF and installed them on the muffler pipe.

Nice, wish we had the turbo diesel 6 here in Canada. Also interesting didn't know they had DPF system already back then.

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[wpoll]

Originally Posted by aheckenast

Nice, wish we had the turbo diesel 6 here in Canada. Also interesting didn't know they had DPF system already back then.

It existed but only in some Euro markets - pretty rare in the rest of the world.

Looks like there were factory fitted options, which included DPF monitoring etc. (DDE 6.0 I suppose...along with swirl-flaps?) and an OE retro-fit kit, which didn't include any sensors, monitoring etc (used regular DDE 5.0).

Clavurion is the expert on these matters - he's the only XO member I know of that has one of these cars.