MIVV for Husqvarna 701 Enduro/Supermoto
The STR-1 from Italian exhaust manufacturer MIVV has been designed by its in-house R&D department to "optimise the big single-cylinder that drives the two lightweight 701 versions (2021 - 2023) whilst remaining withing the Euro 5 regulations.
"Even as a Euro 5 exhaust, the STR-1 delivers a noteworthy increase in torque and power, a gratifying sound and refined compactness from all three of the available versions."
An easy-install direct replacement for heavier and larger OEM exhaust, it has a layout that has been designed to adapt to the spaces available on enduro bikes and "guarantees performance over the entire engine delivery range". There are two versions - an AISI 304 austenitic chromium-nickel stainless steel 18/8, and titanium with 3k twill carbon end cap and support arm and a silencer that is also available in black stainless steel.
The STR-1 is equipped with a special dB killer developed to reduce noise without penalising performance. MIVV uses the latest generation of easily replaceable sound-absorbing materials and says that the STR-1 does not require remapping - product development was completed without making any changes to the electronics. To comply with Euro 5 homologation, in addition to the muffler, the MIVV ACC.041.A1 catalyst must be purchased.
For the 701, MIVV also produces a racing header in stainless steel, intended for those who use the bike on tracks or on closed courses. This is also built in 304 stainless steel and offers diameters that guarantee competition performance.
The header adopts the standard position and can be used both with the MIVV STR-1 silencer and with the original - it is provided with a lambda probe connection for any intervention on the electronics and does not require the use of a catalyst. This type of set-up respects the rules related to off-road competitions, but is not Euro 5 compliant.
MIVV quotes a +4.30 hp gain max. at 8,000 rpm and +4.20 Nm max. at 6,700 rpm. The increase is well established along the entire engine delivery range, rising decisively from low revs and remaining constant up to 9,000 rpm. The weight reduction is -2.20 kg.
MIVV S.P.A.
