RC40 REAR BOX AND PIPE FROM CATALYST BACK
C-STR811

£61.00 exc vat

£73.20 inc vat

In stockIn stock
Rear RC-40 fitted with a pipe to bolt straight on to the catalyst for cars built late 1991 onwards (not early carb coopers). It has the hanger rods fited for mounting onto the rubber type straps. This makes it a single box system with a little throatier pleasing note, but a much better flowing more efficient system.

A less expensive alternative without the hanger rods is C-STR809 rear box and AN181T pipe. A twin silencer catalyst type free flowing exhaust is available as C-STR812, original Rover types have all been replaced by a common exhaust which is quite restrictive.

£61.00 exc vat

£73.20 inc vat

In stockIn stock

Recommended usage 1 x C-STR811 to fit one mini.
Exhaust RC40 1275GT / Cooper S - Qty 1
Exhausts for 998cc with HS4 and Cooper 1275 cc wit - Qty 1
1275cc with HIF38 carburettor and open loop cataly - Qty 1
Exhausts for all injection cars - Qty 1

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2 reqd but sold seperately-From 1990 rover started fitting the hanging rubber exhaust mounting straps which push onto rods on the exhaust and rear subframe similar to the old metro. These were used right to the end of production on minis.

Metal gasket for the catalyst and is the same both ends for Cooper 1275CC RSP early cars, but only fitted on the front to later cars. If you cannot fit this gasket on the rear your car does not need one.

Alternative products

Rear RC-40 twin box system to fit catalyst for cars built late 1991 on SPI(not early carb coopers). It has the hanger rods fited for mounting onto the rubber type straps. This makes it a twin box system with a little throatier pleasing note, but a mu...

Kit products

This kit uses the race quality valves and alloy roller tipped rockers but for a cheaper version but identical in power see C-STN21BUDGET. Both kits give more or

less the same gains which is a true 20-25%

This kit gives the same power as the C-STN21 but uses forged 1.5 rockers as opposed to alloy roller tipped type and has road spec valves rather than race type. This makes the kit a little cheaper

This is more or less exactly the same in terms of performance as the C-STN20

performance kit but uses 1.5 forged rockers instead of roller tipped alloy

rockers and the cylinder head uses top grade road type valves. A gtrue ain of 20...

20% - 22% power increase plus better pulling power and smoother. Also noticable gains at the top end and runs perfect with existing ECU. Keith Dodd has now done 11,000 trouble free miles in his car. Exhaust is finished in Mild Steel.

if your front downpipe or exhaust needes replacing this conversion will give you extra power for little more. A new better flowing downpipe with a flexible knuckle plus our super RC40 single box rear silencer for that slightly sporty sou...

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Rear RC-40 twin box system to fit catalyst for cars built late 1991 on SPI(not early carb coopers). It has the hanger rods fited for mounting onto the rubber type straps. This makes it a twin box system with a little throatier pleasing note, but a mu...

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Rear RC40 mild steel silencer with stainless steel tailpipe. Can be used as a single box system with down pipe number AN180V for a little throatier note.

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This is the pipe to fit to the catalyst to enable fitment of the single rear box C-STR809. A ready assembled single box unit from the catalyst back is available as C-STR811 but this has the later type hanger bracket mounts t...

A more robust cast version on GEX7801.



Twin Down pipe clamp for Carb Coopers 1990 on wards, and Metro's.

Also used as a single clamp on manifold for cars fitted with HIF38 carb cars from 1991 on.

Identical to RV8009 catalytic converter however this has been type approved for use in the EU, TUV approved.



Will fit all mini models with a cat, if you require new bolts the part numbers is FB110351 and ...

1.75" Bore centre exit twin tail pipe maniflow rear box with adaptor to sleeve down to the standard mini 998cc type exhaust system.

The very rear bobbin type mounting rubber on every mini made until the introduction of a rubber hanger strap in 1992. When the RC40 or similar systems are fitted, 2 will be required. This is a stronger poly version.

1.75" bore single box, centre exit exhaust system. This exhaust system by Maniflow is straighter and louder than our RC40 system. Very high quality with a skid plate on the bottom of the silencer and a polished stainless tip. Suitable for use with an...

Blanking plug to blank of the Lambda sensor hole on all SPI/MPI models.

M10 metric flanged bolt 35mm long for catalytic converter. (4 required per unit)

This sleeve will allow an 1"3/4 rear box to fit a standard bore front pipe of a 998cc mini. The large end fits into the RC40 and the smaller end accepts the 1.25" diameter as standard 850/998 exhaust pipe bore