~2 HP if I remember correctly. That's why they mention that there are gains but won't mention the measly number.

I know the Flowmaster Force II I had on my V6 showed a before/after dyno chart of about that much.

Any performance gains you feel will be from the reduced weight of the Roush ABs vs. stock

 

Swapping any chambered muffler for a blow through will help flow! As far as getting any real gains out of them are extremely minimal and I know this!! I am asking if any one has any proof of the minimal gains on paper! I don't care if it is 1 or 2 hp for my informational purposes I'm asking this question. Not for anyone to make smart*** comments!

 

You can't get 2hp gains on paper. There is no dyno that offers that sort of resolution

 

I guess when u think about it there are so many variating factors u would not know if u really gained anything or not. I get it point taken

 

Hey guys... Blue oval had the Roush ABs for $380.00, but now they're back to $469.00.
Who's got the best price right now? I'm looking, but don't see any deals right now...

This thread helped convince me to buy them, but it would be nice to save a few bucks...

 

Your going to have to shop around prices are going up due to demand. Look on eBay and forum sales sections may find someone looking to sell. Other wise if I come across some good prices will let u know

 

Hey buddy go to gettorq.com they still have the roush axlebacks for 380$ order fast before they take it off the site for that price!!

 

I spoke to a couple retailers about that and it wasn't them, Roush raised the minimum advertised price. It was the big guys discounting them so much that hurt the smaller retailers. PM Steve from PureSpeedMotorsports, he's a vendor here and can probably offer you a good deal.

 

Thanks everybody!!!

 

Did u check out gettorq.com they still have the roush at a good price! Take advantage while u can!

 

the flowmaster site has dynos for there systems, they seem to make about 8hp

 

Those are for Catback systems, not axlebacks.

 

They sound great, so you will get a wonderful placebo effect.

I have no resonators and a 3 inch aftermarket X-pipe. I don't know if my exahust has made any huge differences, but it does seem to pull cleaner and harder. I also have the FRPP tune.

Mike