2005 u/c 88",, slip ons ,stg 1 a/c,,stock,,,, if i put andrews 26 cams does it have to be retuned??

 

For best results, yes

 

My Stage II 95" Big Bore from the Factory came with S/E 203 cams. So when I went to the Andrews 26's, there wasn't enough difference in the cam profiles to warrant a tuner at all. Just the original Stage II download was sufficient apparently, ( 2 years and 42,000 miles ago.)

So I'm pretty certain that on a stock 88", you'll need a tuner / re-tune. The difference in those cams is pretty significant by comparison.

 

Yes it will have to be re-tuned or it will run odd