Anybody know how much you stand to gain, if any, with the 3.5" over the 3.25"?

- NCSU

 

I thought the AF1 was a 3" or 3.25". Is there a 3.5" available now?

 

There has been a 3.5" available, but not readily. Also, 3" and 3.25" are available, too. Currently, Troyer did not have any 3.25", so I ordered the 3.5". UPS says it will be here Monday. Oh, joy (sarcastic). I can't do much with it until the tunes come. Then, watch out!

 

Same problem I have mine should be shipped today or monday

 

I'm in the same boat with you guys. Mine just got here today, but the good thing is theres a dyno day soon so I'll have Mike tune me on the dyno I hope to gain 5-10 I guess

 

I got my new tunes for the 3.50 AF1 I'll post tomorrow how it works out

 

Well, the 3.5" AF1 offers about 3-5 more peak HP over the 3.25 at most - it's not a lot - it's primary advantage is in the lower rpm power.

Now for those who have the 3.25 and want to upgrade, we can do that - but unless you are looking for every last HP, I would say just stick with the 3.25" unit, which works very nicely, and put that mod money towards a different mod. That's just MHO.

Now for those who do not have an intake yet, then sure, go with the 3.5" - and the 3.5" is relatively new - over time we will probably phase out the 3.25" entirely, and simply offer it in 3.0 & 3.5" sizes - one size for those who want to be able to run the intake on their stock tuning (3,0"), and then the 3.5" for those who want maximum power.