# Tuning EPROM chip Cali 1100
**URL:** https://forum.motoguzziclub.co.uk/t/tuning-eprom-chip-cali-1100/788
**Category:** Big Block Tonti and Loop Frame models
**Created:** [17 August 2013 13:40 UTC](https://forum.motoguzziclub.co.uk/t/tuning-eprom-chip-cali-1100/788 "2013-08-17T13:40:34Z")
**Posts on this page:** 3
**Page:** 1
### Author:  [@francjul](https://forum.motoguzziclub.co.uk/u/francjul)
#### Post date: [17 August 2013 13:40 UTC](https://forum.motoguzziclub.co.uk/t/tuning-eprom-chip-cali-1100/788/1 "2013-08-17T13:40:34Z")
Hello,
Does anybody have experience of using a performance chip? Which type offers best results in a non cat Cali (Stone) 1100 2003 model? I have used these on K series BMW’s with good results for performance AND fuel economy.
Various vendors on ebay from £40-£140.
All the best.
Julian
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### Author:  [@Exmembers](https://forum.motoguzziclub.co.uk/u/Exmembers)
#### Post date: [17 August 2013 14:04 UTC](https://forum.motoguzziclub.co.uk/t/tuning-eprom-chip-cali-1100/788/2 "2013-08-17T14:04:23Z")
There is no chip on a Cali Stone. Best bet is to get custom map for a PC111 USB or get programmeable ECU. Guzzirider2013-08-17 14:05:25
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### Author:  [@Exmembers](https://forum.motoguzziclub.co.uk/u/Exmembers)
#### Post date: [18 August 2013 07:28 UTC](https://forum.motoguzziclub.co.uk/t/tuning-eprom-chip-cali-1100/788/3 "2013-08-18T07:28:02Z")
I have a PC111 with K&N filter and open pipes (not offensive) on my Stone. I chose a map from guzzitech that most closely matched my set-up. I reckon I have lost a little top speed ( \>100 mph is no fun on a stone ) but gained a lot in midrange. I get a good 55 mpg solo or fully loaded and two up, makes no difference. Worthwhile IMHO.