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Hi I have had a problem with my car for a while now. It’s very strange i could be driving the car from cold for two hours and it’s running ok but it feels like it missing something power wise. only to stop and switch of the car for 30 mins come back and it’s like a different car. Really...

Hi All As the title says, will a 3 inch H pipe resonator delete make any difference sound wise than a 2.5 H pipe. Bearing in mind that the rest of the exhaust is also stock 2.5inch. would the 3 inch have any advantages?. thanks

Hi Just a quick question. does anyone know if the active exhaust actuators are side specific?. does their need to be a left and right side, or either can go any side ?. Cheers

Hi I was wondering if anyone has installed the MBRP race catback on a Mustang that has active exhaust?. As the race doesn’t have valves it removes the active exhaust function. How do you set this up without the ECU throwing a code that the valves are not connected ?. are you supposed to leave...

Hi All Quick question will an S650 axle back active exhaust (aftermarket) fit an S550. I would like to purchase the mbrp race exhaust for my 2020 Bullitt but don’t want to lose the active exhaust function. the s650 race has active exhaust. Just wanted to know if anyone has experience if this...

Just wondered if it’s worth the money buying the MBRP catback with active exhaust when just an H Pipe with our stock exhaust would sound the same ?. has anyone tried an MBRP on the Bullitt?. cheers

Hi So I’ve had this issue for ages where the car runs great and you stop the engine and restart a runs sluggish. I did a dtc reset with no codes and the engine runs great again. but obviously nothing is reset except the rediness monitors. would this narrow my problem to potentially being the...

Hi All what should the FP and FPM pids be reading in Forscan?. mine reads FP - 22% FPM - 40% This is at idle as well as WOT. Fuel pressures are good just trying to locate a hesitation surge issue and I’m thinking it’s the fuel pump. thanks

Hi I can’t really explain why at the moment but if I were to drill a small hole say 1cm in the valve of the active exhaust valves would this make quiet mode slightly louder with the hole ? thanks

Just wondered if anyone out there has modified their Borla Stype mufflers so that quiet mode pipe is louder ?. what I mean is that when the flap is closed the exhaust is bypassed to the quieter pipe. Anyone modified that ? cheers

Hi All my car has a conditions for about 4 years where one week it will run smooth and have great power, then suddenly it will run a little off. Surges a little and the exhaust sounds a little off. no error codes and I have checked absolutely everything except the low and high pressure fuel...

Hey guys I’ve had an intermittent problem with my 2020 Bullitt for a while now. Sometimes runs ok but feels a little underpowered and kinda stumbles a little. Other times it’s amazingly quick. I’ve checked everything and I’m now starting to question the fuel pump… what’s a decent fuel pump at...

Hi Im going to change my brake pads today and I just wondered where these metal plates go in the picture I’ve sent. do they go between the outside of the pad and the pistons ?. thanks

So I’ve been complaining for a while now that my car intermittently sounds like crap and the exhaust will sometimes sound crisp and other times strange but still loud. decided to pull the fuse on the active exhaust while in normal mode and the exhaust seems great. I don’t have any issues with...

Hi All Quick question if I have a premium fuel tune and I add fuel which may either be slightly contaminated or less octane. Will this affect my Long term Fuel trims into negative 12%?. also it’s 36 degrees centigrade here at the moment and the IAT temps are through the roof. I asked because...

Hi I don’t think I have the 2k rattle but is it normal to hear what I think are vct solenoids rattling a low rpms. Normally it’s when accelerating at low rpm from about 2-2.5k rpm. it’s not the 2k rattle because that sounds different. Just wondered if anyone has this ??

Hey I tried the steeda clutch spring a while ago and although it made the clutch more linear it was killing my knee in traffic holding it down all the time and went back to stock. the problem is the return of the clutch. It literally just springs your foot up. are their any products or ideas...

Hey Just ordered a flowmaster 40 and 44 and will be placing as a mid pipe resonator with my Stype catback for my 2020 Bullitt. Will try the 40 and then the 44 and see how it sounds on the Bullitt will send a video once fitted.

Am I reading too much into this ?. Car runs amazing and smooth, new spark plugs filters etc. but after a 30 min drive I’m logging 56 misfires but no error codes or anything. Is this normal ?. Thanks

Hi Guys Just wanted your opinion before I buy it. I have an Stype catback on my Bullitt and it’s sounds great but I’m looking to get that old school chambered sound: Some people have mid mounted a dual in-out flowmaster super 44 as a mid pipe. just a bit worried it will significantly drop the...