Performance >
Exhaust Systems
The Big Bore 4x4 Exhaust System is an ideal replacement product that will provide increased engine efficiency over the standard OE equipment supplied with the vehicle, extracting the exhaust gases rather than the turbo or motor having to push them out
Most new 4WD vehicles have a fuel system that is electronically controlled. There are now several modules available to allow you to retune these vehicles. Vehicles with manual pumps have the cost factor greatly reduced
Whilst the Big Bore 4x4 Exhaust system by itself will provide increased performance, it is recommended that to obtain maximum benefit the vehicle (either electronic or manual) be retuned after fitting

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Big Bore Exhaust System - Bravo
Complete system supplied boxed, no welding, all flange joints gaskets, bolts & fitting instructions supplied
Bravo B2500 1999 - 2006 WL-T 4 Cyl Cab Chassis Manual 4X4 & 4X2
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Big Bore Exhaust System - BT50 - Auto
Complete system supplied boxed, no welding, all flange joints gaskets, bolts & fitting instructions supplied
BT-50 DX 2006 - Current WLAT 4 Cyl Cab Chassis Auto 4X2 2985
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Big Bore Exhaust System - BT50 - Manual
Complete system supplied boxed, no welding, all flange joints gaskets, bolts & fitting instructions supplied
BT-50 DX 2006 - Current WLAT 4 Cyl Cab Chassis Manual 4X2 2985
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Big Bore Exhaust System - Colorado
Complete system supplied boxed, no welding, all flange joints gaskets, bolts & fitting instructions supplied
Colorado RC 2008 - Current 4JH1TC 4 Cyl Crew Cab Ute Only Not the Cab Chassis 4X4 & 4X2 3050
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Big Bore Exhaust System - Colorado
Complete system supplied boxed, no welding, all flange joints gaskets, bolts & fitting instructions supplied
Colorado RC 2008 - Current 4JH1TC 4 Cyl Cab Chassis Only Not the Crew Cab 4X4 & 4X2 3200
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Big Bore Exhaust System - Courier
Complete system supplied boxed, no welding, all flange joints gaskets, bolts & fitting instructions supplied
Courier 1999 - 2006 WL 4 Cyl UTE PD to PH Upgrade
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Big Bore Exhaust System - D-max
Complete system supplied boxed, no welding, all flange joints gaskets, bolts & fitting instructions supplied
D-max RC 2008 - Current 4JH1TC 4 Cyl Crew Cab Ute Only Not the Cab Chassis 4X4 & 4X2 3050
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Big Bore Exhaust System - D-max
Complete system supplied boxed, no welding, all flange joints gaskets, bolts & fitting instructions supplied
D-max RC 2008 - Current 4JH1TC 4 Cyl Cab Chassis Only Not the Crew Cab 4X4 & 4X2 3200
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Big Bore Exhaust System - Hilux
Complete system supplied boxed, no welding, all flange joints gaskets, bolts & fitting instructions supplied
Hilux KUN16R KUN25R KUN26R 2005 - Current 1KD-FTV 4 Cyl UTE/Cab Chassis/Duel Cab Auto & Manual 4X4 & 4X2 3085
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Big Bore Exhaust System - Hilux
Complete system supplied boxed, no welding, all flange joints gaskets, bolts & fitting instructions supplied
Hilux KUN165R 1999 - 2005 1KZ-TE 4 Cyl UTE/Cab Chassis/Duel Cab Manuel 4X4 2850
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