Minor exhaust mod

Specific discussion about the E89 2009 Z4 (sDrive35is, sDrive35i, sDrive30i, sDrive23i)
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enuff_zed
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Minor exhaust mod

Post by enuff_zed » Thu Sep 19, 2019 1:56 pm

gwatson wrote:
Thu Sep 19, 2019 1:52 pm
chilistrucker wrote:
Thu Sep 19, 2019 1:50 pm
Right bear with me as I’m useless.

He said 2 inch as that ‘Slides’ in just perfect for the weld.

He said you could go 2 and a 1/4 but would have to drop the exhaust for the welding.

Hope that helps?
Perfect, really appreciate that. I'll take a look online, probably need 50cm i'm guessing...
I hope you mean 50 mm?
Unless you're jacking the car up a bit :)

OK, so re-read it, and maybe you mean 50cm length? In which case I'll bog off :)
E89 20iS M Sport - Valencia Orange

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gwatson
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Minor exhaust mod

Post by gwatson » Thu Sep 19, 2019 1:59 pm

enuff_zed wrote:
Thu Sep 19, 2019 1:56 pm
gwatson wrote:
Thu Sep 19, 2019 1:52 pm
chilistrucker wrote:
Thu Sep 19, 2019 1:50 pm
Right bear with me as I’m useless.

He said 2 inch as that ‘Slides’ in just perfect for the weld.

He said you could go 2 and a 1/4 but would have to drop the exhaust for the welding.

Hope that helps?
Perfect, really appreciate that. I'll take a look online, probably need 50cm i'm guessing...
I hope you mean 50 mm?
Unless you're jacking the car up a bit :)

OK, so re-read it, and maybe you mean 50cm length? In which case I'll bog off :)
Length yes sorry 😁
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chilistrucker
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Minor exhaust mod

Post by chilistrucker » Thu Sep 19, 2019 8:20 pm

gwatson wrote:
Thu Sep 19, 2019 1:52 pm
chilistrucker wrote:
Thu Sep 19, 2019 1:50 pm
Right bear with me as I’m useless.

He said 2 inch as that ‘Slides’ in just perfect for the weld.

He said you could go 2 and a 1/4 but would have to drop the exhaust for the welding.

Hope that helps?
Perfect, really appreciate that. I'll take a look online, probably need 50cm i'm guessing...
No worries :thumbsup:

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Minor exhaust mod

Post by zedwheels » Thu Sep 19, 2019 8:59 pm

I had a little alteration to my 23i too, had the dual pipes diverted from twin on L/H side to a single each side then had double mufflers fitted.
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Minor exhaust mod

Post by Mavster » Fri Sep 20, 2019 6:20 am

Nice. :thumbsup:
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flybobbie
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Minor exhaust mod

Post by flybobbie » Fri Sep 20, 2019 7:41 am

zedwheels why bother splitting the exhaust, i just made up a mock tail pipe on the right.
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greg81
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Minor exhaust mod

Post by greg81 » Fri Sep 20, 2019 7:57 am

Won't that look a bit odd in winter when you've only got smoke coming out one side?

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Minor exhaust mod

Post by keving1 » Fri Sep 20, 2019 8:47 am

flybobbie wrote:
Fri Sep 20, 2019 7:41 am
zedwheels why bother splitting the exhaust, i just made up a mock tail pipe on the right.
Looks nice, did you just cut the rear bumper to fit and did you do anything extra with the cut ends or did you buy a diffuser or similar?

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flybobbie
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Minor exhaust mod

Post by flybobbie » Fri Sep 20, 2019 8:33 pm

greg81 wrote:
Fri Sep 20, 2019 7:57 am
Won't that look a bit odd in winter when you've only got smoke coming out one side?
I'll panic if smoke comes out.

Does anyone care.

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Minor exhaust mod

Post by zedwheels » Fri Sep 20, 2019 8:36 pm

flybobbie wrote:
Fri Sep 20, 2019 8:33 pm
greg81 wrote:
Fri Sep 20, 2019 7:57 am
Won't that look a bit odd in winter when you've only got smoke coming out one side?
I'll panic if smoke comes out.

Does anyone care.
:rofl: :rofl:

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flybobbie
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Minor exhaust mod

Post by flybobbie » Fri Sep 20, 2019 8:36 pm

keving1 wrote:
Fri Sep 20, 2019 8:47 am
flybobbie wrote:
Fri Sep 20, 2019 7:41 am
zedwheels why bother splitting the exhaust, i just made up a mock tail pipe on the right.
Looks nice, did you just cut the rear bumper to fit and did you do anything extra with the cut ends or did you buy a diffuser or similar?
Just cut the bumper to match, made a bracket that bolts onto existing bumper mount. Welded two lengths of exhaust tube to bracket.
At least it now looks balanced.

zedwheels
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Minor exhaust mod

Post by zedwheels » Fri Sep 20, 2019 8:41 pm

flybobbie wrote:
Fri Sep 20, 2019 8:36 pm
keving1 wrote:
Fri Sep 20, 2019 8:47 am
flybobbie wrote:
Fri Sep 20, 2019 7:41 am
zedwheels why bother splitting the exhaust, i just made up a mock tail pipe on the right.
Looks nice, did you just cut the rear bumper to fit and did you do anything extra with the cut ends or did you buy a diffuser or similar?
Just cut the bumper to match, made a bracket that bolts onto existing bumper mount. Welded two lengths of exhaust tube to bracket.
At least it now looks balanced.
Agree that's why I like the look, Its Balanced the rear end. :thumbsup: That way would have saved me £600. :roll:

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flybobbie
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Minor exhaust mod

Post by flybobbie » Fri Sep 20, 2019 8:42 pm

Fasten to this bolt and nut.
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scootr
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Minor exhaust mod

Post by scootr » Wed Sep 25, 2019 2:57 pm

This sounds like a good starting point. Has anyone posted before and after sound video of this mod?
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