Do different G30's have exhaust tips point in vs out?

hatch-2810 · Today, 01:43 PM

When looking some of the ebay rear diffusers, I noticed that some show the diagonal edge of the exhaust tip (and the diffuser cutaway) pointed inwards (top picture) and some where the diagonal edge and cutaway point outwards.

Is this a matter of swapping the tips, or do different models have the tips pointed in different directions? I wanted to avoid the problem of buying a diffuser where the cutaway is in a different direction than the exhaust tip.

tjbuggy2b · Today, 02:21 PM

Top pic is the M550i. Bottom pic is the 540i.

hatch-2810 · Today, 03:18 PM

Thank you for the clarification, weird that vendors mixes the two up like that

tjbuggy2b · Today, 03:35 PM

Usually, the diffuser is styled to fit the M550i, which has larger exhaust openings. These diffusers will usually fit the 540i, as well but will have odd looking gaps between the tips and the diffuser. For the 540i, they are usually meant to be used with aftermarket exhausts with 4" quad tips. However, be careful. eBay/Amazon diffuser ads don't always specify exactly what they will work for, and don't necessarily always fit the tips you think they will.

Today, 01:43 PM	#1
hatch-2810 New Member 2 Rep 9 Posts Drives: 2021 530e Phytonic Blue Join Date: Feb 2024 Location: San Jose, CA iTrader: (0)	Do different G30's have exhaust tips point in vs out? When looking some of the ebay rear diffusers, I noticed that some show the diagonal edge of the exhaust tip (and the diffuser cutaway) pointed inwards (top picture) and some where the diagonal edge and cutaway point outwards. Is this a matter of swapping the tips, or do different models have the tips pointed in different directions? I wanted to avoid the problem of buying a diffuser where the cutaway is in a different direction than the exhaust tip.
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Today, 02:21 PM	#2
tjbuggy2b Lieutenant 177 Rep 410 Posts Drives: 2018 540i xDrive M Sport Join Date: Nov 2010 Location: Columbus, OH iTrader: (0)	Top pic is the M550i. Bottom pic is the 540i.
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Today, 03:18 PM	#3
hatch-2810 New Member 2 Rep 9 Posts Drives: 2021 530e Phytonic Blue Join Date: Feb 2024 Location: San Jose, CA iTrader: (0)	Thank you for the clarification, weird that vendors mixes the two up like that
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Today, 03:35 PM	#4
tjbuggy2b Lieutenant 177 Rep 410 Posts Drives: 2018 540i xDrive M Sport Join Date: Nov 2010 Location: Columbus, OH iTrader: (0)	Usually, the diffuser is styled to fit the M550i, which has larger exhaust openings. These diffusers will usually fit the 540i, as well but will have odd looking gaps between the tips and the diffuser. For the 540i, they are usually meant to be used with aftermarket exhausts with 4" quad tips. However, be careful. eBay/Amazon diffuser ads don't always specify exactly what they will work for, and don't necessarily always fit the tips you think they will.
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