Amazon: Simons Exhaust v Standard Exhaust

[classicswede]

If you already have the twin outlet manifold then the 4 branch only has minimal advantage. Its the rest of the system where the real gains are to be had.

As to what manifold to go for its a case of where in the engine range you want to make the power. Typicaly 4-1 manifolds are best for high RPM and 4-2-1 manifolds are best to low down.

[Derek UK]

Volvo used the twin out cast manifold with twin Solex for their 145bhp R kit so it can't be bad.

[TomTom]

Amazon69 reported on a very good system that he got made up by a firm in Gloucestershire. Could he give an update to say whether its still performing well? I remember that this was an alternative to the off the peg systems discussed here.

Tom

[amazon69]

Well yes, he could.
It is performing perfectly. It is a great improvement over the simons exhaust as far as I am concerned, but then it was a fair bit more cash. However, it is elegant, more muted but still gruff, indestructible and most importantly for me, does not ground anywhere. That last point is probably not an issue unless your car is lowered, but I always found the Simons back box ungainly and mine was always getting clouted and scraped. Here's the original link.

[Derek UK]

Excellent. We didn't get the pictures though..................

[tdz840]

Originally Posted by amazon69

Well yes, he could.
It is performing perfectly. It is a great improvement over the simons exhaust as far as I am concerned, but then it was a fair bit more cash. However, it is elegant, more muted but still gruff, indestructible and most importantly for me, does not ground anywhere. That last point is probably not an issue unless your car is lowered, but I always found the Simons back box ungainly and mine was always getting clouted and scraped. Here's the original link.

What was the cost if you don't mind me asking?
Russ

[123GT-AMAZON]

Originally Posted by amazon69

Hi all,

Just thought I'd let you know of a great exhaust maker/fitter down my neck of the woods.
I'd got sick to death of the wretched Simons 'sports' exhaust..it was noisy, ugly, and hit everything it could. Replacement options are limited however, as we know. So, I decided to have a stainless one made. I found Infinity exhausts, just off junction 18 of the M4 (Bath exit). Phil and his boys made, from scratch, the full exhaust from the downpipe back. They made and fitted a silencer before the axle, then went over the axle (we discussed under, but decided against), then put in another handmade, thin silencer where the original massive back box was. I got to choose the tailpipe. Very exciting...I went for one with an 8" diameter...only joking. The whole thing tucks up so tight under the car it's unbelievable...and not a single knock or touch anywhere. The pipe over the axle is somehow about half as long as the one that came off.... Power is easily as good as the simons, and noise levels much lower, but still sporty. No droning now either...apparently that's due to the weird 3' long pseudo 'silencer' in the Simons...
And I got them to weld me in a Lambda plug in the downpipe. All that for £300, with a lifetime guarantee. Got to be better than the other options, if you can afford it. For the first time in 3 years I got up my drive without scraping the exhaust..hooray
I have no affiliation with the company, I'm just a very happy customer.
http://www.infinity-exhausts.co.uk/
I'd post pictures but whenever I try I fail, so you'll just have to imagine..

in the original post which he had written up was this info

[tdz840]

Thanks
£300 isn't bad for a made to fit stainless system.
Only thing I would say is previous cars I fitted with a SS system had a 'ring' at certain revs.
Amazon69, does yours have this?
Russ

[amazon69]

No ring, and it's a much better sound than the simons.

[jimbo1593]

Piccys amazon69....PLeeeeaaaassseeee. :-)