Page 16 - July 2025 Edition.cdr
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LHR MOTORCYCLE MAGAZINE                            16                             PRODUCTS REVIEW


     Budget Throttle: Testing Temu Slip-On


     Performance Exhausts for Motorcycles




                                             However, internal baffle packing           Temu Slip-On ONLY (no tune):
     By Ian van der Merwe
                                             and soundproofing material vary
     INTRODUCTION                                                                        ·  Peak Power: 75.1 hp
                                             wildly  between  units—some
     If you've spent any time in online      rattle loose after a few hundred            ·  Peak Torque: 69.2 Nm
     rider forums or motorcycle TikTok                                                   ·  AFR leaned out to ~15:1
                                             kilometers.
     lately,  you've  probably  seen         F I R S T   I M P R E S S I O N S :
     them: unbelievably cheap slip-on        INSTALL AND STARTUP                      Temu  Slip-On  WITH  Custom
     exhausts for sale on Temu. They                                                  Tune (Power Commander V):
     promise  performance,  sound,           Installation is straightforward for         ·  Peak  Power:  79.3  hp  @
     and  universal  fitment  for  a          most naked bikes, dual-sports, or               9,100 rpm
     fraction  of  the  price  of  name-     small ADV machines. We tested               ·  Peak Torque: 71.5 Nm @
     brand  systems.  Most  of  them         on:                                             7,200 rpm
     hover  around  the  R500–R1500              ·  2021  Yamaha  MT-07
     mark  and  are  shipped  straight              (stock headers)                   The results confirm that on some
     f r o m   C h i n a .   T h e y   l o o k                                        bikes, a Temu pipe can add 4–5
     slick—often  carbon-fiber-                   ·  KTM Duke 390                      hp when paired with proper fuel
     wrapped  or  satin  black—and               ·  Suzuki DR-Z400                    tuning. But without a tune, AFR
     claim to enhance both aesthetics        In all cases, the slip-on mounted        r a t i o s   m a y   l e a n   o u t
     and performance.                        easily  to  the  stock  midpipe.         dangerously—raising  engine
                                                                                      temperatures  and  risking  long-
     So how do they hold up in the real      H o w e v e r,   m i n o r   b r a c k e t   term damage.
     world?  Are  they  just  cosmetic       fabrication  or  adapter  sleeves
     bolt-ons  or  can  they  actually       were necessary in two instances.         PERFORMANCE NOTES
     deliver horsepower, torque, and         No  major  modifications  were               ·   Low  RPM  Response:
     sound  upgrades?  And  what             required,  and  each  install  took             M o d e s t   i n c r e a s e   i n
     happens when you slap one on a          less than an hour.                              responsiveness;  more
     modern  motorcycle  and  roll  it       Startup sound: noticeable bass.                 throaty roll-on
     onto a dyno?                            Idle  tone  deepens  significantly           ·   Midrange:  Small  boost,

                                             compared  to  stock  exhausts,                  especially  with  DB  killer
                                             even with the DB killer installed.              removed
     WHAT  YOU  GET  FOR  R600:
     INSIDE THE BOX                          Revving  without  the  DB  killer           ·   Top-End:  Slightly  louder
                                             yields a snappy, raspy bark—not
     Most  Temu  exhaust  listings           Akrapovič  quality,  but  not                   and  freer-revving  with
     include:                                obnoxious either.                               tune; no loss of power
         ·  A  stainless  steel  or          "It  sounded  way  better  than  I       Throttle response also improved
                                                                                      slightly after tuning—though not
            a l u m i n u m   m u ffl e r      thought it would," said one DR-Z         dramatically.
            (carbon-look  or  plain          rider  in  Cape  Town  who  tested       SAFETY AND LEGALITY
            steel)                           the pipe on gravel roads.
                                                                                      Te m u   e x h a u s t s   a r e   n o t
         ·  Universal  51mm  inlet                                                    homologated  or  ECE-certified.
            ( s t a n d a r d   o n   m o s t   DYNO  TUNING:  DOES  IT               They may exceed noise limits for
            midpipes)                        ACTUALLY MAKE POWER?                     public road use. Riders in Europe
         ·  S p r i n g   r e t a i n e r s ,   We partnered with a local dyno        a n d   s o m e   S o u t h   A f r i c a n
            mounting  clamps,  and           tuning shop in the Western Cape          municipalities risk fines for non-
            generic brackets                 to  test  the  Temu  slip-on  on  a      compliant pipes.
                                             Yamaha MT-07.
         ·  Removable  DB  killer                                                     Some options include:
            (silencer insert)                Baseline (stock muffler):
                                                                                         ·   Reinstalling  DB  killer  for
     Despite no recognizable brand or            ·  Peak  Power:  74.5  hp  @                road use
     warranty,  these  pipes  offer                  8,900 rpm                            ·   Repacking  the  muffler
     surprising  build  quality.  Welds          ·  Peak  Torque:  68  Nm  @                 with fiberglass wool
     are decent, the finish is smooth,               6,800 rpm
     and the DB killer slots in snugly.                                                  ·   Using only for track days
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