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BMW M140i JB4

Posted by Simon Newman on

BMW B58 JB4 supplied by Bolt On Mods. The new B58 engine platform is a real weapon once tuned. The M140i JB4 can produce approx 430bhp with only exhaust modifications such as a decat down pipe. Bolt On Mods can supply your JB4, offer fitting and life time support. This was the first time this customer had ever fitted a JB4 tuning box with no previous knowledge. Even still, this customer managed to fit in under an hour with no issues. The JB4 can be easily stacked with other tuning modifications such as meth injection. This allows the M140i to...

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BMW M140i JB4 with Boostane Octane booster. 

Posted by Simon Newman on

When running extra boost, making sure you have enough octane is vital. Without it you run real risks of catastrophic engine failure. Boostane Octane booster answers those questions and removes those risks. Simply add the right amount to meet your octane needs.  The BMW B58 found in the M140 is no exception to this. The M140i JB4 can increase power levels to approx 430bhp, up from approx 340bhp stock, so running more octane is highly recommended.  Half a can of Boostane octane booster to a full tank of 99ron SUL such as Tesco 99 or Shell V-power will give you...

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