I recently added a SE 103 Stage 2 kit to my 08 RG. Prior to the upgrade it was a stock 96 stage 1 with SE A/C and Fatcat 2 to 1. I hope this will help those considering the SE 103 kit better understand what they may get in HP & torque. The attached chart was made from two separate dynos (one before and one after the upgrade) both with the Fatcats and SE A/C.

 

Thanks for the info. I went with e the stage III and I love it!

 

So about 20%-25% better acceleration?

 

Very nice, enjoy your new found 15 HP AND 22 TQ. You will have a big grin from ear to ear, ill bet.

 

That's a nice side by side comparison.

 

I recently had the stage 3 kit installed and was able to achieve 97hp and 103 ft/lbs of torque with a high flow air filter with stock cover and "Rush" slip-on mufflers.

 

Not to burst your bubble, but something just isn't right. 83 HP out of the 103"? Either a bad build or a bad tune. You should be in the mid 90's or higher with your set up. I'd like to see an air fuel line on that printout. I'm getting 89 H.P. out of a 96" stage II and only 6 or 7 TQ. less.

 

You are looking at the stage 1 TQ. His HP looks to be 90.

 

My 1st 103" build in my 2007 FXST was a Stage II....SE 255 cams, 103" flat top pistons. No headwork, V&H Big Radius exhaust, PCIII. Made 82 hp, 102 tq. Right in line with where it should've been, considering no headwork, and poor exhaust.

 

The peak HP is 90 and Torque at 104. This is with no headwork. It has a lot more get up and go; I thought it a good improvement for $1400.