M4 GP2 Slip-On Exhaust
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$
434.00
$457.00
Save $23.00 (5% Off)
M4 GP2 Slip-On Exhaust, Standard slip-on system with GP2 muffler.
This slip-on mounts to the stock catalytic converter to improve the looks of your R1.
These systems utilize the stock header assembly.
Slip-ons replace the stock restricted muffler resulting in better sound and an increase in power.
M4 silencers look as good as they perform.
Note: M4 recommends re-flashing your stock ECU to unleash the full potential of all M4 products.
Note: All M4 systems are designed and intended for closed-course competition use ONLY.