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Martyn's Z4M Coupe
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Martyn's Z4M Coupe
2008 Z4MR Ruby Black, Sepang Hell, Carbon Weave
2006 Z4 3.0si Montego Blue, Imola/Black individual
NCS/ISTA diagnostics & coding in Midlands - pm me
2006 Z4 3.0si Montego Blue, Imola/Black individual
NCS/ISTA diagnostics & coding in Midlands - pm me
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- Member
- Posts: 944
- Joined: Sun Oct 06, 2019 12:12 am
Martyn's Z4M Coupe
Sterling work Martyn, acceleration must be brutal
I must not search for a dct gearbox and peripherals...
I must not search for a dct gearbox and peripherals...
I must not...
I must not search for a dct gearbox and peripherals...
I must not search for a dct gearbox and peripherals...
I must not...
2008 Z4MR Ruby Black, Sepang Hell, Carbon Weave
2006 Z4 3.0si Montego Blue, Imola/Black individual
NCS/ISTA diagnostics & coding in Midlands - pm me
2006 Z4 3.0si Montego Blue, Imola/Black individual
NCS/ISTA diagnostics & coding in Midlands - pm me
- Martyn
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- Joined: Mon Nov 25, 2013 9:41 pm
- Location: Poole, Dorset
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Martyn's Z4M Coupe
Small update, I've been super busy with my actual day job so not had much time to play but I did order a couple of Milltek 100 Cell cats, new mid section flanges and a bit more 2.5" stainless. I'm going to remove the resonators and add the cats in their place, hopefully this will reduce the whiff at idle.
The cats sleeve on to the 2.5" stainless so would pretty easy to fit up.
The cats sleeve on to the 2.5" stainless so would pretty easy to fit up.
- 1536Z4
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Martyn's Z4M Coupe
Was there any reason why you picked Milltek in particular as I have been looking at buying some 200 cel cats and was going to go for Jetex . Thanks.
Montego Blue E86 . MILV`s . Simpson Custom Manifold Race Exhaust . xHP transmission stage 3 . VT engine mounts . BC RA coilovers . H&R arbs . Adjustable rear camber arms . Ultra Racing front strut brace . Drexler LSD .
- Martyn
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Martyn's Z4M Coupe
Mainly because of the price, they were 175 quid each.
- 1536Z4
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Martyn's Z4M Coupe
Yes I see now they have a sale on . I am looking at the 200 cell but even on offer they are £356 each . I have seen it mentioned online they are made by HJS so worth it if thats true . You have bought 2.5 inch pipe for the cats is the rest of the exhaust 2.5 inch now ? Considering the BHP you are putting out I would think it would need to be ?
Montego Blue E86 . MILV`s . Simpson Custom Manifold Race Exhaust . xHP transmission stage 3 . VT engine mounts . BC RA coilovers . H&R arbs . Adjustable rear camber arms . Ultra Racing front strut brace . Drexler LSD .
- Martyn
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Martyn's Z4M Coupe
The cat section is made up of 2.5". The rest of the exhaust is stock, i've left it that way as I don't believe it to be a restriction.
I treated myself to a mid rise scissor lift for the garage, the quickjacks were great, but this is next level. It's so nice to have the car at a decent height.
I removed the decat pipes and got chopping. I extended the section before the cats to allow more clearance around the gearbox, then used 4 pipe cuts on each pipe to raise the pipes to allow a straight entry into the cats.
Not my finest work but they'll do the job.
I treated myself to a mid rise scissor lift for the garage, the quickjacks were great, but this is next level. It's so nice to have the car at a decent height.
I removed the decat pipes and got chopping. I extended the section before the cats to allow more clearance around the gearbox, then used 4 pipe cuts on each pipe to raise the pipes to allow a straight entry into the cats.
Not my finest work but they'll do the job.
- 1536Z4
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Martyn's Z4M Coupe
Ok thanks . Have ordered my cats now . I am having my exhaust made up as I don`t have your skills . Nice lift not jealous , not a bit jealous , definitely not jealous . Ok I`m jealous
Montego Blue E86 . MILV`s . Simpson Custom Manifold Race Exhaust . xHP transmission stage 3 . VT engine mounts . BC RA coilovers . H&R arbs . Adjustable rear camber arms . Ultra Racing front strut brace . Drexler LSD .
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Martyn's Z4M Coupe
The cell matrix on the HJS cats appears to be different than the Milltek. I'm not sure Milltek's are made by HJS.1536Z4 wrote: ↑Sat Jun 24, 2023 11:20 amYes I see now they have a sale on . I am looking at the 200 cell but even on offer they are £356 each . I have seen it mentioned online they are made by HJS so worth it if thats true . You have bought 2.5 inch pipe for the cats is the rest of the exhaust 2.5 inch now ? Considering the BHP you are putting out I would think it would need to be ?
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Martyn's Z4M Coupe
A lift is on my wish lift - which one did you go with, Automotech ?Martyn wrote: ↑Mon Jun 26, 2023 2:51 pm The cat section is made up of 2.5". The rest of the exhaust is stock, i've left it that way as I don't believe it to be a restriction.
I treated myself to a mid rise scissor lift for the garage, the quickjacks were great, but this is next level. It's so nice to have the car at a decent height.
2008 Z4MR Silver Grey
2017 Audi A6 Avant Quattro 3.0 BiTdi
2003 Clio 172 Cup
2017 Audi A6 Avant Quattro 3.0 BiTdi
2003 Clio 172 Cup
- 1536Z4
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Martyn's Z4M Coupe
Thats a shame but hopefully still a decent cat . I have just searched Milltek and HJS and they do sell downpipes with HJS cats so that is probably where it came from .
https://www.demon-tweeks.com/uk/milltek ... fd211-akn/
https://www.akstuning.co.uk/shop/home/1 ... -tfsi.html
Montego Blue E86 . MILV`s . Simpson Custom Manifold Race Exhaust . xHP transmission stage 3 . VT engine mounts . BC RA coilovers . H&R arbs . Adjustable rear camber arms . Ultra Racing front strut brace . Drexler LSD .
- Martyn
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- Posts: 203
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- Location: Poole, Dorset
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Martyn's Z4M Coupe
Yeah. I bought the additional lead on ramps too as my cars are quite low.
Ive done a few miles with the cats on, they certainly reduce the smell but they've introduced a little bit of rasp that I didn't have with the Fabco resonators.
- Vanne
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Martyn's Z4M Coupe
Love that lift mate
2007 EuroSpec Z4///MC Building/Developing Z4 GT3
Powered by Severn Tuning
Powered by Severn Tuning
- Martyn
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- Posts: 203
- Joined: Mon Nov 25, 2013 9:41 pm
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Martyn's Z4M Coupe
Managed to pop out with the VBOX to do a quick 100-200 kph test.
Not bad, but I think there are still some improvements to be made. Keep in mind that there's 3 gear changes in a 100 to 200 kph run with the DCT box.
For comparison here's a 100-200 I did in my ~370bhp E46 M3 before switching out the diff for a 4.10. Spot the gear change lol.
Not bad, but I think there are still some improvements to be made. Keep in mind that there's 3 gear changes in a 100 to 200 kph run with the DCT box.
For comparison here's a 100-200 I did in my ~370bhp E46 M3 before switching out the diff for a 4.10. Spot the gear change lol.
- Ed Doe
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Martyn's Z4M Coupe
That's mental, both the difference in time between the two, and the smoothness of the shifts in the DCT Z4M! Very tidy work Martyn
Carbon Black '07 M Coupe: Intrax 1k2 Coilovers, AP-Racing, Raybestos ST45s, Tillets, Schroth, Vibratechnic, Apex EC7, Strongstrut, Eventuri, H&S, RTD, 4.1FD
Silver Grey '06 3.0si Coupe - SOLD
Silver Grey '06 3.0si Coupe - SOLD