The standard exhaust was terrible quality. Fitted the rs192 years ago & it's been brilliant since they sorted the centre section to cat join. It's got a great sound too, not too boomy.
https://www.rs192.co.uk/
I had similar a few years back. Replaced coil pack, injectors, lamba sensor none worked. Eventually tracked down the (I think it's called this) MAF sensor, the one at the top of the engine. It had a very slight split in the plug rubber and cost about a tenner to fix!
Fronts:
Mark - x 2
Paul Morris
MarcB
Patrick Bateman
JJ55
CS1969
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Hughie
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IRK
evilandy
MC1
Mariner 55
Kelvin123820003 - x 2
Wiggy
BenG
Marc N Smith
Gazza
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Michael D
Fish 2
Highfield
Richard
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Rears:
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Same for me about 18 months ago, started with the MAF sensor (the one just above the oil filler cap on the left of the inlet manifold). No better. Then went through all the usual; coil pack, injectors, plugs, lambda sensor. Loads of labor time, loads of cost, back & forth to the garage & no...
I went 3M too a couple weeks ago & then put some of this sealant on after https://www.amazon.co.uk/gp/product/B00A3S1RGU/?tag=ctphy-21
Came up almost as good as new. Definitely cheaper than a new set & all being well wont fail the MOT (on that....)
For info 3M kit -...
Morning all, had the new 'group buy sachs' fitted a couple of weeks ago (thanks again everyone involved!) & since then had an odd knocking that I hope is knackered anti roll bar bushes - fresh powerflex to be fitted later this week. Also had an odd intermittent grinding type noise when moving or...