A computer chip is always our first recommended upgrade to almost every BMW. Bonneville Motorwerks tuned engine performance chips, developed by Motronic expert Jim Conforti, provide the ultimate in performance. The modified Motronic software, which requires 91 or higher octane gasoline, adjusts the ignition timing and fuel curves which results in increased performance. We have dynoed Jim Conforti chips and compared them to all other brands and found they provide the best performance throughout the entire rpm range, while still providing the safety margin needed when running a performance engine. Along with performance increases in both torque and horsepower, Jim Conforti chips provide the maximum competitive advantage through raised engine rev-limits and removed top speed limiters.
Application | HP Stock/New | Peak HP Gains | Torque Stock/New | Peak Trq Gain | New Rev Limit |
---|
90-91 318 | 134 / 144 | 12 @ 5500 | 125 / 136 | 15 @ 2500 | 7000 |
92-95 318 | 138 / 148 | 11 @ 5500 | 134 / 147 | 19 @ 2500 | 6900 |
85-87 325e | 121 / 141 | 24 @ 4500 | 174 / 192 | 28 @ 4500 | 5300 |
87-91 325i | 167 / 177 | 15 @ 5000 | 164 / 177 | 15 @ 5000 | 6900 |
92 325i | 189 / 204 | 20 @ 6000 | 188 / 201 | 13 @ 4500 | 7000 |
93-95 325i | 189 / 211 | 22 @ 6000 | 193 / 210 | 20 @ 4000 | 7000 |
88-91 M3 | 187 / 202 | 22 @ 6250 | 176 / 186 | 19 @ 6000 | 7800 |
95 M3 | 240 / 250 | 19 @ 5000 | 238 / 254 | 16 @ 3500 | 7000 |
85-87 528e | 121 / 141 | 24 @ 4500 | 174 / 192 | 28 @ 4500 | 5300 |
89-90 525 | 167 / 179 | 15 @ 5000 | 164 / 177 | 15 @ 5000 | 6900 |
92 525 | 189 / 204 | 20 @ 6000 | 188 / 201 | 13 @ 4500 | 7000 |
93-95 530 | 215 / 238 | 23 @ 6000 | 222 / 228 | 23 @ 3000 | 7000 |
93-95 525 | 189 / 211 | 22 @ 6000 | 193 / 210 | 20 @ 4000 | 7000 |
85-88 535 | 182 / 206 | 24 @ 5000 | 214 / 243 | 29 @ 2000 | 6600 |
89-92 535 | 208 / 222 | 43 / 6250 | 223 / 237 | 21 @ 2000 | 6800 |
93-95 540 | 282 / 296 | 19 @ 3000 | 277 / 292 | 33 @ 3000 | 7000 |
87-88 M5 (US) | 256 / 294 | 48 @ 6000 | 250 / 280 | 32 @ 5000 | 7200 |
91-93 M5 | 311 / 343 | 39 @ 7000 | 282 / 294 | 38 @ 3500 | stock |
85-87 635 | 182 / 206 | 24 @ 5000 | 214 / 243 | 29 @ 2000 | 6600 |
88-89 635 | 208 / 222 | 43 @ 6250 | 223 / 237 | 21 @ 2000 | 6800 |
87-88 M6 (US) | 256 / 294 | 48 @ 6000 | 250 / 280 | 32 @ 5000 | 7200 |
85-87 735 | 182 / 206 | 24 @ 5000 | 214 / 243 | 29 @ 2000 | 6600 |
88-92 735 | 208 / 222 | 43 @ 6250 | 223 / 237 | 21 @ 2000 | 6800 |
Please note: due to global supply chain interruptions, older EPROM chips may be in short supply. Please contact us with your ECU number and we can better advise you on availability.
Notice of Emissions Non-Compliance. This software was developed and tuned on vehicles that retained all emissions controls. It is intended for vehicles with stock and fully functional emissions equipment. However, it has not been submitted nor tested for approval in California. Therefore, it is not legal for sale or use in California on any pollution controlled motor vehicle. Not legal for installation or use on any pollution controlled motor vehicle in any state, province, or jurisdiction governed by, or which has adopted, CARB or EPA regulations.
BMW Fitments: 3 SeriesE30 (84-91) > 325i
E30 (84-91) > 325is
E30 (84-91) > 325ix
3 SeriesE36 (92-99) > 318i M42
E36 (92-99) > 318ic M42
E36 (92-99) > 318is M42
E36 (92-99) > M3 (1995)
3 SeriesE36/5 (95-99) > 318ti M42
5 SeriesE34 (89-95) > 525i M20
E34 (89-95) > 525i M50
E34 (89-95) > 530i
E34 (89-95) > 540i
E34 (89-95) > M5 (91-95)
6 SeriesE24 (77-89) > 635CSi
7 SeriesE32 (88-94) > 735i
E32 (88-94) > 735iL