SLEEPER MODE Mufflers

What is Sleeper Mode?

Sleeper Mode lets you change the sound of your car using a valved exhaust system. Choose more sound when you want it, or enjoy a quieter ride when you don't.

Shop Sleeper Mode by Type

Muffler Pairs
Single Mufflers
T Mufflers
Dump Valves

SLEEPER MODE V2 Mufflers (L&R Pair)
SLEEPER MODE V2 Mufflers (L&R Pair)
$950
View
SLEEPER MODE Mufflers (L&R Pair)
SLEEPER MODE Mufflers (L&R Pair)
$899
View
SLEEPER MODE Muffler (Single)
SLEEPER MODE Muffler (Single)
$500
View
SLEEPER MODE Muffler (Double TT V2)
SLEEPER MODE Muffler (Double TT V2)
$750
View
SLEEPER MODE Muffler (Single T V2)
SLEEPER MODE Muffler (Single T V2)
$675
View
SLEEPER MODE Muffler (Single T)
SLEEPER MODE Muffler (Single T)
$599.99
View
SLEEPER MODE Muffler (Double TT)
SLEEPER MODE Muffler (Double TT)
$675
View
UNIVERSAL SLEEPER MODE DUMP VALVE
UNIVERSAL SLEEPER MODE DUMP VALVE
From $159.99
View
UNIVERSAL SLEEPER MODE DUMP VALVE (V2)
UNIVERSAL SLEEPER MODE DUMP VALVE (V2)
$229.99
View
SLEEPER MODE Muffler (Single V2)
SLEEPER MODE Muffler (Single V2)
$500
View
SLEEPER MODE Muffler (Single V3)
SLEEPER MODE Muffler (Single V3)
$500
View