Exhaust Advice Please For a Newbie

Papa Paul

Newbie
British Zeds
Joined
Jul 15, 2025
Points
3
Location
Warwickshire
Model of Z
Z4 E85 3.0i
Hi. I'm new to the forum, and to Z4's. Had my 2005 E85 3.0i for 3 weeks and haven't stopped smiling!
When I bought it I knew the exhaust had been butchered many times and had been poorly welded, so I'm planning on a new catback exhaust. I don't want anything that will drone excessively on long runs, or doesn't cost the earth (unfortunately the wife is keeping half an eye on my spending). I think I've decided on a Gravitiy Performance system, but I would be very appreciative of any and all comments.
Cheers.
 

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Depends where you're located, but if you're up here in the 'grim' north I'd suggest Tony Banks at Leeds. He did my E85 , I told him I didn't want a loud boy racer, just a nice deep burble and it sounded great.
 
Welcome Paul
 
Thank you for the warm welcome. I'm very likely to ask some very stupid questions in the future, so I feel I should offer my apologies in advance. Sorry.
On the exhaust front I have decided to fit the Gravity Performance (cost was a big factor at this point) if it turns out to be a dud then I'll have to fork out for a better system down the line.
 
Hi Paul and :welcome: to the forum from me too in Stafford. Where are you based?
 
Thank you for the warm welcome. I'm very likely to ask some very stupid questions in the future, so I feel I should offer my apologies in advance. Sorry.
On the exhaust front I have decided to fit the Gravity Performance (cost was a big factor at this point) if it turns out to be a dud then I'll have to fork out for a better system down the line.

Hi Paul, i live close by in the Cotswolds and also need a cat back system for my 2.8. How does the gravity sound and what was the total cost?
 
Hi Dean.
Gravity performance store on EBay £322, but currently £370ish. I had a friend with a garage fit it for me, he said it was easy to fit.
Sound is great, very throaty when accelerating, but doesn’t seem too loud when cruising on the motorway (although I always have the roof down, so might resonate more in the cabin with roof up).
Hope that helps.
 
Hi Paul, yes that’s very helpful. I will give them a call on Monday. Thanks very much.
 
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