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Seriously considering the RPI Exhaust

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Sjz4m
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Seriously considering the RPI Exhaust

Post by Sjz4m » Mon Jul 12, 2021 5:42 pm

I recently got my z4mc and just want a deeper exhaust note…. So many different ideas floating round..
But until I can got for a full system.. is there an easy option for now?

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RedUn
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Seriously considering the RPI Exhaust

Post by RedUn » Mon Jul 12, 2021 10:02 pm

Not really no, back boxes are the way forward just a few quid :thumbsup:
IMOLA Z4///MR

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ga41
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Seriously considering the RPI Exhaust

Post by ga41 » Tue Jul 13, 2021 6:42 am

Sjz4m wrote: Mon Jul 12, 2021 5:42 pm I recently got my z4mc and just want a deeper exhaust note…. So many different ideas floating round..
But until I can got for a full system.. is there an easy option for now?
You could open up the stock boxes, gut them and put in an S pipe to direct the flow: viewtopic.php?f=9&t=67242

Others do the "bypass" mod on the stock exhausts: viewtopic.php?p=1382992#p1382992
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Attilio
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Seriously considering the RPI Exhaust

Post by Attilio » Mon Jul 19, 2021 2:28 pm

Bombardino wrote: Mon Jul 12, 2021 11:06 am As mentioned by Iggy Powervalve come highly rated, It just so happens I have a set in my garage if your interested.
Hi,

only catching up with this thread today ... I might be tempted by your BCS boxes. What sort of money do you have in mind?

Thanks
A
Z4M Coupe, Interlagos blue, black leather, piano black, stubby, OEM CSLs, evolve intake, cup holders...pretty much stock
2019 Toyota Corolla hybrid 2.0L - new daily drive

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Bombardino
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Seriously considering the RPI Exhaust

Post by Bombardino » Mon Jul 19, 2021 5:57 pm

Attilio wrote: Mon Jul 19, 2021 2:28 pm
Bombardino wrote: Mon Jul 12, 2021 11:06 am As mentioned by Iggy Powervalve come highly rated, It just so happens I have a set in my garage if your interested.
Hi,

only catching up with this thread today ... I might be tempted by your BCS boxes. What sort of money do you have in mind?

Thanks
A
My quote is a bit misleading, they are in my garage but still attached to the car 😄 my intention was to remove them last week, however I’ve done a few more miles with them but still can’t 100% if there for me or not. I think I’ll give them a bit longer and see if they grow on me.
If I do sell them I would like what I paid for them in May £600.

Bigpow
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Seriously considering the RPI Exhaust

Post by Bigpow » Fri Jul 23, 2021 2:12 pm

You could fit bypass pipes with valves 👍🏻
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Z4MR - Sapphire black.imola.carbon.19" csl's.

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wspohn
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Seriously considering the RPI Exhaust

Post by wspohn » Sat Aug 14, 2021 8:40 pm

I have the RPI back boxes and love them. Yes, they are fairly throaty, but you can alleviate any steady speed drone on the highway by shifting up. Note that I have a coupe, which may experience more drone than a convert.
Vancouver BC, Canada
2007 Z4MC
2009 Solstice GXP coupe
1962 MGA Coupe
1956 MGA (rebody+re-engined)
1958 MGA Twin Cam race car
1972 Jensen Interceptor

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