We've certainly had our hands full staying abreast of upgrade hotness. And, of course, with Coyote-powered Ponies being all the rage, the lion's share of new bolt-ons being produced these days is dedicated to '11-'13 Mustang GTs. While most of the components we've studied thus far have been legitimate performance enhancers, occasionally we hear about bits that are more superficially appealing.
Ford Racing Performance Parts recently hipped us to its new exhaust setup for '11-up Mustang GTs, a bolt-on replica of the side-exit tubes that are factory installed on Boss 302s, and we found the concept cool enough for us to put one on. The stainless-steel exhaust (PN M-5220-MB; $795) joins FRPP's other Boss pieces, which are making their way onto standard GTs. The Boss 302 upgrades bring back fond memories of the days when cloning specialty Mustangs (such as '93 Cobras) was popular.
While we're not out to fool anyone with this effort, we have to say right now that the new Boss 302 exhaust adds a distinct and unique rumble to a Coyote's exhaust note, especially once the attenuation disc/restrictor plates are removed.
Here we cover the exhaust exchange performed by Ricardo Topete and Eddie Zapata of GTR High Performance. While this exercise certainly can be performed by do-it-yourself-minded (and capable) enthusiasts, we suggest putting the job in the hands of professional installers, as shops typically are better equipped for below-chassis efforts.
Horse Sense: As '13 Mustangs hit the lots, we really have to be thankful that even when times were tight--only a few short years ago, as a matter of fact--aftermarket manufacturers like the folks at Ford Racing Performance Parts pushed forward with a bevy of cool bolt-on upgrades for Coyote-powered 'Stangs.
On the Dyno
Baseline and dyno runs for this effort were performed largely for grins and curiosity satisfaction. However, when it was all said and done, GTR's Dynojet presented data that confirms adding Ford Racing Performance Parts' Boss 302 side-exhaust and mufflers actually does increase rear-wheel horsepower and torque on a bone-stock Mustang GT.
As you can see in the accompanying graph and chart, this is not a bolt-on that increases performance by leaps and bounds. However, when it comes to sound differences, the system (with accentuation discs removed) definitely will set apart the '11-up GTs that it's installed on.
Here is a final look at the bone-stock exhaust equipment on Salvador's 'Stang. Of course,
Ford engineers created this quad exhaust system (a traditional H-pipe with secondary disch
This is a closer look at the side-exit (we call them "kicker") pipes that sit just before
True to OEM form, kickers in the Ford Racing pipe also feature the same step-down/step-up
The Boss 302 side pipes feature polished stainless tips that are contoured downward. Unfor
Just beyond the block plates lie Ford's attenuation discs on each kicker and thin stainles
Factory H-pipe clamps are reused; a few swings of a rubber mallet may be necessary for dis
The Boss 302 pipe features 1/4-inch-thick steel-block plates that allow the system to be u
When installing the side pipes, the hard-plastic skid plates below each seat well must be
The super-restrictive discs feature holes for exhaust gas and sound discharge. From a soun
We honestly had no expectations of how the Ford Racing Performance Parts' Boss 302 side ex
Here is a graphic look at the Mustang's stock performance and the gains, if you will, with
While the FRPP Boss 302 side exhaust doesn't install in minutes, it isn't too daunting an
Installing the Ford Racing upgrade mufflers requires removing clamps from the OEM cans. Ta
There really isn't much to bolting the cans in place, as fitment is spot on.
The FRPP mufflers are installed using OEM hangers and aforementioned clamps.
Each muffler is nicely finished with a polished Ford Racing-embossed stainless tip. Aligni