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Join Date: Apr 2008
No - With it being a 1.4 it will rely on torque to get it moving. If you de-cat the car you will loose a small amount. Unless you are keeping the car at high rpm, revving the knackers off it and drive it like a tw@t all of the time, you will not notice a benefit. It may have a placebo effect on you because the noise is louder and so you think you are going faster, but put it on a dyno and you will see that it has suffered and adverse affect, especially with no further modifications.
My Rebuilt 2.0 TS engine has a decat and middle boxes removed. It also has an induction kit, port and polished head and throttle body and a balanced bottom end. When I removed the boxes (so it now only has 1) I noticed that there wasn't as much torque at the bottom end, but for me that doesn't really mater as the car is striped out and built for sprinting and so in the high rpm range.
'97 Alfa Romeo 145 Cloverleaf in Black.
Fully Rebuilt 2.0 TS Engine - Port and Polished Cylinder Head - K&N Panel Filter - Aftermarket Exhaust System with Oval Tip Back Box - 284mm EBC Turbo Grooved and Dimpled Discs - Smoked Side Repeaters - KYB Stiffer Gas Shocks - Ebiach Prokit Springs - Rear Seats & Sound Deadening Removed - 4 Point Sparco Harness - Goodridge Braided Hoses Coated in Blue PVC - Corbeau Forza Sport 2000 Bucket Seats with custom made subframes