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Firebrand Exhaust 4" Grand Prix Slip-On Muffler For Harley Street 2015-2018

Item: P315395

The Grand Prix Slip-On is a great way to amplify the sporty features of the Harley-Davidson Street 500 and 750. Inspired by the MotoGP race circuit, t… Read More

$292.46
$324.95
Save $32.49 (10%)

This product is vehicle specific. Please to ensure fitment.

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Firebrand Exhaust 4" Grand Prix Slip-On Muffler For Harley Street

The Grand Prix Slip-On is a great way to amplify the sporty features of the Harley-Davidson Street 500 and 750. Inspired by the MotoGP race circuit, the Grand Prix Slip-On is guaranteed to stand out with its chrome hex end treatment nesting inside a contrasting black ceramic coated billet end cap. Don’t be fooled by its good looks, the Grand Prix Slip-On is not just for show. Inside the 4” muffler body is a free flowing, stainless core baffle wrapped in dual-density packing. Engineered to bring the Street’s potent power plant to life, the Grand Prix Slip-On delivers increased performance, and a sound so deep you can feel it.

Features:

  • 4” muffler body with billet aluminum MotoGP inspired end cap
  • Race-inspired high performance baffle with dual density muffler packing
  • Increases performance and replaces the timid stock sound with a deep roar
  • Black ceramic finish
  • Made in the USA
  • Sold each
Made in the USA
Product Style RevZilla Item # MFR. Product # Availability
Product Style Black RevZilla Item #1066469 MFR. Product #14-1004 AvailabilityIn Stock: Ships within 24 hours

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Related Video

Exhaust Sound Comparison for Harley

Reviews & Questions

5.0 / 5.0
7 Reviews
5 Stars
4 Stars
3 Stars
2 Stars
1 Star
7
0
0
0
0
Bang For The Buck
5.0 / 5
Features
4.8 / 5
Style
5.0 / 5
Ease Of Install
5.0 / 5
Fit & Finish
5.0 / 5
Durability
4.8 / 5
Bang For The Buck
5 / 5
My Street 750 sounds like a Harley Now!!!
Hi all. Just installed my Firebrand grand Prix Muffler today. On a 2015 HD Street 750. All I can say is WOW!!! Night and Day sound difference. Along with the K&N Air Filter (Stock replacement) I know I will be in trouble with some of the small towns. Especially when I go into work at 6 am. Wish I could post a video. Took about 20 minutes. Mostly fighting the stock muffler off. Ran for a few minutes. let cool. Then checked all Torqued bolts, Clamps.
October 23, 2015
Purchased
over 2 years ago
Ride:
2015 Harley Davidson Street 750 XG750
Bang For The Buck
5 / 5
EXCELLENT CHOICE!
I purchase this wanting to make my bike louder, Lets just say I am impressed and got more than I bargained for... I was comparing this (firebrand grand prix) and the bassani megaphone trying to make up my mind I finally pulled the trigger on this one!

It's super loud and actually sounds like a harley now!
July 14, 2016
Ride:
2016 Harley Davidson Street 750 XG750
Bang For The Buck
5 / 5
my 750 does not sound like a sewing machine anymore
only took a few minutes to install and the sound on this is great makes the bike sound good and turns heads when you ride by a group of people. i would recomend this to anyone that has a street 750
July 30, 2016
Ride:
2015 Harley Davidson Street 750 XG750
Bang For The Buck
5 / 5
Features
5 / 5
Style
5 / 5
Ease Of Install
5 / 5
Fit & Finish
5 / 5
Durability
4 / 5
Deafening.
I started the bike up pipeless after putting the new pipes on the volume was equal but added in was a nasty growl that I had been looking for. Best for your money hands down.
May 1, 2017
Purchased
1 year ago
Bang For The Buck
5 / 5
Features
4 / 5
Style
5 / 5
Ease Of Install
5 / 5
Fit & Finish
5 / 5
Durability
5 / 5
The Perfect sound for a street 750 with great looks
The sound!!!! perfect,it will turn your street 750 into an excellent sounding machine, deep bass, and at throttle pull, it will turn the heads.

Installation was really easy, perfectly fits in, actually looks pretty good on bike.

Great value for money. My bike's ready to roll with a brand new sound, made for it :-)
September 15, 2016
Purchased
1 year ago
Bang For The Buck
5 / 5
Features
5 / 5
Style
5 / 5
Ease Of Install
5 / 5
Fit & Finish
5 / 5
Durability
5 / 5
Firebrand Grand Prix for Harley Street
I purchased this muffler 3 Had the stock on there we all know that sounds like a blender, then I bought the screaming Eagle was not happy with the sound, even bought the KN Filter still the sound sucked so I started to listen to sound clips guys were saying get the Speed Merchant its the loudest for the Harley street and I almost did until I ran across the sound clip for Firebrand Grand Prix it was amazing and the sound I was looking for throaty, raspy feel in your chest. It arrived today 9 minutes later I turned the key. Man its loud, raspy, throaty and you can feel the roar. Anyone that has the street this muffler ROCKS. The sound clip does not do it justice until you hear it in person you will feel that roar in your chest. I am very happy with Firebrand and my purchase. worth the money. I paid 400.00 for screaming eagle. listen to all the clips on you-tube.
June 1, 2018
Purchased
1 month ago
Bang For The Buck
5 / 5
Features
5 / 5
Style
5 / 5
Ease Of Install
5 / 5
Fit & Finish
5 / 5
Durability
5 / 5
What a real harley should sound like
If u own a street model u need to replace the muffler with this one it is definitely worth the money makes ur bike sound lile a motorcycle and not a sewing machine.
July 31, 2017
Purchased
1 year ago
7 Customer Reviews
7 5/5
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4 Questions & 4 Answers
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