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35i Exhaust tips

Specific discussion about the E89 2009 Z4 (sDrive35is, sDrive35i, sDrive30i, sDrive23i)
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Nick9one1
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35i Exhaust tips

Post by Nick9one1 » Tue Mar 20, 2018 12:17 pm

Has anyone replaced the exhaust tips on the 35i? Mine are looking a bit tired and pitted.

It seems the 35i tips are welded on, so not as simple to replace as other models in the range.
There are quite a few universal tips available that at first glance would fit, both weld on and clamp on.

Unfortunately it also looks like the left and right exhaust tips are different diameters where they exit the backbox, so a simple 60 to 80mm would work on the left tip, but not the right.
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Z4 35i Space Gray, Red Leather
Stepped Intercooler
De-Cat Downpipes
HKS SSQV
MHD 98RON Stage 2+
395 BHP :driving:

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Bombardino
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35i Exhaust tips

Post by Bombardino » Tue Mar 20, 2018 1:18 pm


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Nick9one1
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35i Exhaust tips

Post by Nick9one1 » Thu Mar 22, 2018 12:45 pm

I've done some measurements...

Left exhaust is 60mm and flares to 80mm at the tip.
Right exhaust is 70mm and flares to 80mm.

There are loads of stainless 63mm to 102mm tips available pretty cheap. the left exhaust should be easy, but the right exhaust will be a little more tricky.
I've got welding equipment and I'm pretty competent at fabrication so it shouldn't be too much trouble.


Now I just need to choose a style. Do I go slash cut (OEM look) or straight cut. Polished stainless, burnt blue, or dark chrome.
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Z4 35i Space Gray, Red Leather
Stepped Intercooler
De-Cat Downpipes
HKS SSQV
MHD 98RON Stage 2+
395 BHP :driving:

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mr wilks
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35i Exhaust tips

Post by mr wilks » Thu Mar 22, 2018 12:47 pm

Not a fan of the burnt look , I just don't get that at all :cry:
I wanted rid of the oe ones as I thought they lacked enough visual presence for the flagship twin turbo models :(
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3 ZMRs
3 E89s
5 Si coupes
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997 C4
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Nick9one1
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35i Exhaust tips

Post by Nick9one1 » Thu Mar 22, 2018 12:58 pm

I was of the same opinion. When I started looking I definitely wanted polished stainless. Now I think I prefer the blue tips.. hmm not sure.
Z4 35i Space Gray, Red Leather
Stepped Intercooler
De-Cat Downpipes
HKS SSQV
MHD 98RON Stage 2+
395 BHP :driving:

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35i Exhaust tips

Post by Philly_Sweden » Thu Mar 22, 2018 1:10 pm

it NEEDS to follow the lines/curves of the rear bumper = Slash cut. Straigt cut just looks weird imo :thumbsdown:

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Nick9one1
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35i Exhaust tips

Post by Nick9one1 » Thu Mar 22, 2018 1:31 pm

Philly_Sweden wrote: Thu Mar 22, 2018 1:10 pm it NEEDS to follow the lines/curves of the rear bumper = Slash cut. Straigt cut just looks weird imo :thumbsdown:
:thumbsup: I agree.
I don't think straight cut looks bad, but as the rear bumper is quite curved the slash cut flows nicely.
Z4 35i Space Gray, Red Leather
Stepped Intercooler
De-Cat Downpipes
HKS SSQV
MHD 98RON Stage 2+
395 BHP :driving:

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35i Exhaust tips

Post by Philly_Sweden » Thu Mar 22, 2018 1:41 pm

Nick9one1 wrote: Thu Mar 22, 2018 1:31 pm
Philly_Sweden wrote: Thu Mar 22, 2018 1:10 pm it NEEDS to follow the lines/curves of the rear bumper = Slash cut. Straigt cut just looks weird imo :thumbsdown:
:thumbsup: I agree.
I don't think straight cut looks bad, but as the rear bumper is quite curved the slash cut flows nicely.
Spot on :)

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Nick9one1
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35i Exhaust tips

Post by Nick9one1 » Thu Mar 22, 2018 2:51 pm

I may have been tempted to go for a full custom exhaust, but I recently fitted stainless decat down pipes and the sound/volume is about right. I definitely wouldn't want it any louder.
Z4 35i Space Gray, Red Leather
Stepped Intercooler
De-Cat Downpipes
HKS SSQV
MHD 98RON Stage 2+
395 BHP :driving:

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Nick9one1
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35i Exhaust tips

Post by Nick9one1 » Thu Mar 22, 2018 2:54 pm

I think this is what I've decided on. £60 for a pair delivered.
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Z4 35i Space Gray, Red Leather
Stepped Intercooler
De-Cat Downpipes
HKS SSQV
MHD 98RON Stage 2+
395 BHP :driving:

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mr wilks
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35i Exhaust tips

Post by mr wilks » Thu Mar 22, 2018 3:14 pm

I tried 100mm in the cut outs & they looked "big" :cry: as in a 90s Nissan skyline big :D
Depends what look you are wanting I guess . I went 90mm
3 ZMRs
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997 C4
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Nick9one1
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35i Exhaust tips

Post by Nick9one1 » Fri Mar 30, 2018 3:42 pm

They arrived yesterday! Extremely fast delivery.

I think I made the right choice - Burnt slash cut 102mm. They're pretty big but perfectly fill the factory exhaust cut out in the bumper.

I've just finished fitting them. Took me about 1.5 hours, I didn't have to remove the exhaust fortunately.
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Z4 35i Space Gray, Red Leather
Stepped Intercooler
De-Cat Downpipes
HKS SSQV
MHD 98RON Stage 2+
395 BHP :driving:

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Nick9one1
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Posts: 299
Joined: Thu Dec 28, 2017 12:48 am
Location: Newark, Nottinghamshire

35i Exhaust tips

Post by Nick9one1 » Fri Mar 30, 2018 3:51 pm

I dont think there's an audible difference, but this is what the car sounds like now.

Z4 35i Space Gray, Red Leather
Stepped Intercooler
De-Cat Downpipes
HKS SSQV
MHD 98RON Stage 2+
395 BHP :driving:

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