Bcs exhaust

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S7mon
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Bcs exhaust

Post by S7mon » Tue Apr 04, 2017 4:58 pm

So ordered my BCS full cat back system today for M135i lci who else is running 1 on theirs?

Bmw_ire_2012
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Re: Bcs exhaust

Post by Bmw_ire_2012 » Tue Apr 04, 2017 5:24 pm

I'm running a full sports cat system, sounds amazing. However having issues with the jb4 playing ball with the system which is a pain.
M240i Loaded With Options & M Performance Parts. Jb4 / Led M Performance Wheel / Bcs Full System - Sports Cat / BMW M Performance 624 Wheels :evil:

Swinglowesweetchariot
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Re: Bcs exhaust

Post by Swinglowesweetchariot » Tue Apr 04, 2017 5:27 pm


Mines on order. 140i cat back. Is it he cat or the system you suspect of issues with the JB4 and what's the details? Was planning on doing that after its fitted

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AndyKnight
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Re: Bcs exhaust

Post by AndyKnight » Tue Apr 04, 2017 6:38 pm

Got the cat back on mine but running it with the valve wide open.
MG M135i 5 door, Sports Auto, Adaptive Suspension, Coral Red Interior, Comfort Pack, BCS Cat Back System, JB1, Eibach Pro Kit, 3 Door Tension Struts

L30NNM
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Re: Bcs exhaust

Post by L30NNM » Tue Apr 04, 2017 7:50 pm

Anyone care to post any videos of their cars with the bcs system on here? I'm very tempted by this exhaust but I can't put my finger on what is holding me back...

S7mon
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Re: Bcs exhaust

Post by S7mon » Tue Apr 04, 2017 7:59 pm

Andy how do you full open the valve?

stevoox
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Re: Bcs exhaust

Post by stevoox » Tue Apr 04, 2017 8:10 pm

Does it remove both mid silencers on the cat back system?
MW M240i with full M performance pack

Bmw_ire_2012
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Re: Bcs exhaust

Post by Bmw_ire_2012 » Tue Apr 04, 2017 8:17 pm

Swinglowesweetchariot wrote:
Tue Apr 04, 2017 5:27 pm
Mines on order. 140i cat back. Is it he cat or the system you suspect of issues with the JB4 and what's the details? Was planning on doing that after its fitted

Sent from my SM-G903F using Tapatalk
Its not the exhaust system, it's the jb4 running in conjunction with the exhaust. I've stopped using the jb4 until its fixed. The two together don't play ball, the jb4 was fine before the exhaust system was added. It's something to do with not liking the downpipe.
M240i Loaded With Options & M Performance Parts. Jb4 / Led M Performance Wheel / Bcs Full System - Sports Cat / BMW M Performance 624 Wheels :evil:

KR15
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Re: Bcs exhaust

Post by KR15 » Tue Apr 04, 2017 8:42 pm

stevoox wrote:Does it remove both mid silencers on the cat back system?
Yep.

BCS pipe on the left.

Image
Current - BMW M140i, BCS Powervalve Cat Back :twisted:
Prev - Focus ST-3 Mk3.5 :D

KR15
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Re: Bcs exhaust

Post by KR15 » Tue Apr 04, 2017 8:44 pm

L30NNM wrote:Anyone care to post any videos of their cars with the bcs system on here? Image I'm very tempted by this exhaust but I can't put my finger on what is holding me back...
£950 maybe?? ;)
Current - BMW M140i, BCS Powervalve Cat Back :twisted:
Prev - Focus ST-3 Mk3.5 :D

S7mon
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Re: Bcs exhaust

Post by S7mon » Tue Apr 04, 2017 8:47 pm

£965 fully fitted £1040

kylemacca01
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Re: Bcs exhaust

Post by kylemacca01 » Tue Apr 04, 2017 8:48 pm

KR15 wrote:
Tue Apr 04, 2017 8:42 pm
stevoox wrote:Does it remove both mid silencers on the cat back system?
Yep.

BCS pipe on the left.

Image
Is it a 3" midpipe or a 2.5"? Looks a bit smaller than the stock one.

L30NNM
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Re: Bcs exhaust

Post by L30NNM » Tue Apr 04, 2017 9:13 pm

KR15 wrote:
L30NNM wrote:Anyone care to post any videos of their cars with the bcs system on here? Image I'm very tempted by this exhaust but I can't put my finger on what is holding me back...
£950 maybe?? ;)
Either that or having to explain to the Mrs where £950 has gone and why the car "sounds different"

KR15
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Re: Bcs exhaust

Post by KR15 » Tue Apr 04, 2017 9:23 pm

kylemacca01 wrote:
KR15 wrote:
Tue Apr 04, 2017 8:42 pm
stevoox wrote:Does it remove both mid silencers on the cat back system?
Yep.

BCS pipe on the left.

Image
Is it a 3" midpipe or a 2.5"? Looks a bit smaller than the stock one.
3" and it's much better than quality than the standard pipe which is bent and squashed all over.
Current - BMW M140i, BCS Powervalve Cat Back :twisted:
Prev - Focus ST-3 Mk3.5 :D

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NISFAN
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Re: Bcs exhaust

Post by NISFAN » Tue Apr 04, 2017 9:46 pm

Would that pass a track day noise test?

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