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Racing Exhaust JL RST-RB for

Lambretta 125 LI/LIS/DL/GP/150
LI/LIS/SX/DL/GP/175 TV 2°-3°
/200 TV/SX/DL/GP
steel, black, right hand,
fits wide tyre, with BSAU mark,
with RB adapter piece
SPORT-TUNING, high-performance
& roadworthy

For race use only. Not admitted in the area of the German StVZO!

We at SIP Scootershop have enjoyed a very close friendship, over many years, with Jim Lomas who is responsible for the development and/or production of virtually every successful expansion chamber exhaust system developed in Europe. At the SIP opening day we discussed the marketing of his handmade LAMBRETTA pipes. The result of this meeting is that we can now offer 6 variations of the LAMBRETTA version of the SIP Performance pipes from the KRP1 Road use for everyday scootering through to the maximum performance orientated “JL Race” naturally in the usual high JL-quality. All pipes are mounted exactly using hard plastic spacers. This makes the whole system more flexible so avoiding unnecessary damage to the exhaust itself.

JL KRP1 “Road use” This system was designed especially for lower states of tune and fits on OE cylinders between 125-200cc as well as TS1 kits with the adapter included with this exhaust. This torque orientated version delivers power over the whole rev range and so enables easier gear changing at lower revs.

Conclusion: A very torquey touring exhaust due to the longer manifold assembly combined with a very satisfying sound.

JL KRP2 “Fast road use” Unlike the KRP1 this pipe has a shorter manifold assembly so making the motor noticeably more higher revving and throttle responsive. This pipe is ideal in combination with a TS1 or IMOLA cylinder and enables the magical 10000rpm to be reached (and even breached)

Conclusion: The quarter mile version for the more extreme port timing setups. True rpm monster, that can also function fine in everyday traffic situations.

JL KRP3 “fast road use/semirace use” Power and performance. The KRP3 represents an updated and performance enhanced replica of the legendary “TAFFSPEED MK3”. The extra horses allow an authentic race feeling in everyday road situations. The crowds favourite, it fits all motors from 125-200cc, as do all pipes in the KRP range, and delivers its power over the whole of the revrange.

Conclusion: High performance allrounder that is suitable for fast road tuning and maximum power motor setups. Harmonises and fits perfectly to TS1 cylinders due to the adapter included with this expansion chamber kit.

JL KRP3 “curly” An unobtrusive design with a pure power delivery. If you are looking for a pipe with restrained looks but unrestrained race power, then look no further. The classic “wolf-in-sheeps clothing”. A racing scooter sound and extra performance throughout the revrange.

Conclusion: A decent looking design with a power potential waiting to be exploited. Similar to the KRP3 it can be used in high end road tune setups, all the way through to maximum power racers and sprinters.

JL KRP “race use” Nomen est omen. We are talking about a pipe devoid of BSAU numbers or the like, a ruthless race pipe design with maximum power output included. This pipe is a replica of the famous TAFFSPEED RACE expansion chamber system and well deserved victor of the classic scooter exhaust comparison test.

Conclusion: Turns every well tuned motor setup into a fire breathing (dragon like) monster!


Performance expansion chamber/ steel construction/ black powder coated finish or unpainted/ stainless steel silencer/ curly right hand exit

Steel, black powder coated/ unpainted, multi segmented handweld, stainless steel silencer, right hand/ curly includes the TS1 adapter


SIP-TIP: To exploit the full potential of this exhaust system the use of a tuning cylinder such as the TS1 or the MONZA etc. is necessary. A carburettor of 30 mm or larger and a MEC EUR racing crankshaft completes the ideal performance setup. A larger main jet and an adjusted ignition timing are absolutely necessary for optimal and reliable use of this exhaust system.


exhaust-guru ‚Jim Lomas‘ on Art.-Nr. 2208000: „Real race-exhaust, huge power increase, nothing for Lambretta greenhorns. Incredible huge power increase. Astonishing that a scooter can go so fast!”


SIP Community user ‚Vaughan‘ on Art.-Nr. 22040000: „Top exhaust from a top builder! Jim Lomas is the star amoungst exhaust builders, this is a top exhaust and complements any conventinal road tune from 150cc to 225 stage 4/5 especially, gives a good even power spread throughout the rev range, I've had good results using KRP 2/3/4 on all barrel configurations including, SR, Mugello, Imola and TS1 and the price is unbeatable.”


CLASSIC SCOOTER magazine 01/04: “ absolute torque monster. revving at the top of the range with loads of power in reserve.”

15040200 589,00 €

incl. VAT  plus shipping.
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Racing Exhaust 125-200cc 2T

449,00 €
This item is in stock in sufficient quantity.

incl. VAT
plus shipping

5.200g / piece
Stock on hand   Amount
Free shipping

Product forums
icon scootermodels This product fits the following models
divider Producer/Model divider cc divider Type divider Engine divider Yr. of Const. divider Extra
LAMBRETTA DL/ GP 125 125 22/1 2T AC 1969-1971
LAMBRETTA DL/ GP 150 150 22/0 2T AC 1969-1971
LAMBRETTA DL/ GP 200 200 22/2 2T AC 1969-1971
LAMBRETTA GP 125 SIL 125 22/1 2T AC
LAMBRETTA GP 150 SIL 150 22/0 2T AC
LAMBRETTA GP 200 SIL 200 22/2 2T AC
LAMBRETTA Jet 200 SERVETA 200 200SX 2T AC 1967-1982
LAMBRETTA LI 125 Serie 1 125 125LI 2T AC 1958-1959
LAMBRETTA LI 125 Serie 2 125 125LI 2T AC 1959-1961
LAMBRETTA LI 125 Serie 3 125 125LI3 2T AC 1961-1967
LAMBRETTA LI 125 Serie 4 125 125LI4 2T AC
LAMBRETTA LI 125 SERVETA 125 125LI 2T AC 1961-1965
LAMBRETTA LI 125 Special Serie 3/LiS 125 125LIS 2T AC 1965-1969
LAMBRETTA LI 150 Serie 1 150 150LI 2T AC 1958-1959
LAMBRETTA LI 150 Serie 2 150 150LI 2T AC 1959-1961
LAMBRETTA LI 150 Serie 3 150 150LI3 2T AC 1962-1967
LAMBRETTA LI 150 SERVETA 150 150LI 2T AC 1960-1965
LAMBRETTA LI 150 Special Serie 3/ LiS 150 150LIS 2T AC 1963-1966
LAMBRETTA SX 150 Serie 3/ X 150 Special 150 150SX 2T AC 1966-1969
LAMBRETTA SX 200 Serie 3/ X 200 Special 200 200SX 2T AC 1966-1969
LAMBRETTA TV 175 Serie 1 175 175TV 2T AC 1957-1958
LAMBRETTA TV 175 Serie 2/ SS 175 175TV 2T AC 1959-1961
LAMBRETTA TV 175 Serie 3 175 175TV3 2T AC 1962-1965
LAMBRETTA TV 175 SERVETA 175 175TV 2T AC 1963-1965
LAMBRETTA TV 200 Serie 3 200 TV3 2T AC 1963-1965

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