Catback flat spot....

[M19TNR]

I know it's a topic that comes up time and time again, but I just wanted clarification on one thing (as the search didn't bring it up)....

Is it only a decat that exaggerates the flat spot?

Or

Will you feel it with just a catback?

As my exhaust is knocking like feck and doing my head in, so just going to buy the miltek....but just wanted to know cheers

 

[Willis]

It depends on the centre pipe too. Complete removal of the centre silencer will also create and increase the flatspot even if the Cat remains in place.

 

[welshtom1990]

yeah ive had my cat back on for 2 days now and got caught in 6th at 1500/2000 revs and i thought it was a bigger spot than when my standard system was on.

However the noise makes more than up for it :w00t:

 

[Willis]

I think sometimes too much is made of the flatspot issue, these engines aren't built to perform south of 4,500RPM.

 

[Raptor6767]

I think sometimes too much is made of the flatspot issue, these engines aren't built to perform south of 4,500RPM.

Sooooo true....however, I see a lot of MPG threads on the forum.

 

[Willis]

Sooooo true....however, I see a lot of MPG threads on the forum.

Hahaha!!!

The only time I talk about MPG is when I've got it nice and low!!! :thumbup:

 

[Raptor6767]

Hahaha!!!

The only time I talk about MPG is when I've got it nice and low!!! :thumbup:

BTW: I have 22MPG but I don't care. This car was ment to be driven @2500-3000rpm in the city.

 

[Ashton]

I had a mental flatspot issue today when I left work today for the 1st time in a year with my akrapovic evolution system

Spluttered a bit at 2k and then a monumental back fire

About 3 times louder than the firecracker bang I get at upshift.

That's the only time I have ever witnessed a flatspot in my car with my akrapovic and that has no main cat

 

[welshtom1990]

So basically what we are getting at is yes it does increase the flat spot... But drop the box and boot it and the smile will soon appear!!

 

[melvin1993]

I think sometimes too much is made of the flatspot issue, these engines aren't built to perform south of 4,500RPM.

Could not agree more! Haha

 

[Dean Mac]

Great thread, Martin. I wanted this question answeing too. Cheers people.