GTC

So I'm seriously wanting to purchase the Ford Racing Touring Axle-Back Exhaust.

I know they sound great, but while many sellers have "unleashes power" kind of statements, I can't find any real information/numbers on what it means for increased power?

Any help would be appreciated. Thank you

maxmustang

Most axle-backs are just meant for looks and sound. If you are looking for real power/performance I would look into a different exhaust setup

Siber Express

Don't know about unleashing any power, but hit the throttle and you get a bit bigger smile on your face.
The only thing that really was a big difference on my exhaust was the Short tube headers, they brought in low to mid range power.

shinerttu

Anyone know why this is? I got something like 15-20hp when I added nismo cat back exhaust on my Nissan.

Mike1Six

With the axle-back you are still retaining the factory exhaust pipes from the cats to the muffler. Thus, there is more restriction with a smaller diameter pipe. When you replaced your exhaust on the Z-car you replaced the piping and mufflers, i'm betting with larger diameter piping which in turn provided better exhaust flow.

I just wanted to add to this...

Even with a "Cat-back" you will still have restrictive elements that impede exhaust flow. Headers and cat for example.

To maximize performance (flow) you would need to replace pretty much everything(Headers, Cats, exhaust piping, and mufflers) Keep in mind too, it may not just be the size of the piping but also how it's the different elements are caste/finished (Google mandrel exhaust or polished headers). A smoother surface flows more efficiently.

Matt's 95 Stang

What he said. With AB's you are still running 2.25 in piping from the engine back. Now if you were to open that up and run BBK headers (short or LT), with the FRPP cut and clamp "X" pipe (2.5in) with a catback (2.5in) then you will breath better and get flow equaling more power. This is why I dont have exhaust yet. ATAK catback comes with a 1K price tag that I just can not swing right now.

Matthew