2003-04 Mach 1 Registry Owners Club - View Single Post

muzman · 09-20-2004, 02:05 AM

Hi Mach1Canuck and others

Yesterday finally got to get my K&N drop in air filter in and the Donathan made Mach1Canuck Special IAC restrictor plate with 11/32 hole. Took about 5 minutes to do both mods. We were at our annual club mustang show. I had a 45 minute drive home after this. Well gotta say the car sounded gruntier and seemed to have a bit more pick up and go from a seat of the pants feel.

I noticed that when I got home when free reving when deaccelerating there is a burble and crackle, almost a back fire coming from the exhaust, which wasn't there before. Has anyone else noticed this and is it normal after these mods?

I also noticed a vey slight hesitation on accelerating while driving, before it took off like a rocket.

Should I be worried about any of these differences?

Any feed back will be appreciated.

09-20-2004, 02:05 AM	#84
muzman Mach 1 enthusiast Join Date: Mar 2004 Location: Auckland New Zealand Posts: 1,540	Hi Mach1Canuck and others Yesterday finally got to get my K&N drop in air filter in and the Donathan made Mach1Canuck Special IAC restrictor plate with 11/32 hole. Took about 5 minutes to do both mods. We were at our annual club mustang show. I had a 45 minute drive home after this. Well gotta say the car sounded gruntier and seemed to have a bit more pick up and go from a seat of the pants feel. I noticed that when I got home when free reving when deaccelerating there is a burble and crackle, almost a back fire coming from the exhaust, which wasn't there before. Has anyone else noticed this and is it normal after these mods? I also noticed a vey slight hesitation on accelerating while driving, before it took off like a rocket. Should I be worried about any of these differences? Any feed back will be appreciated. __________________ muzman,Red 03 Mach1,5 speed IUP,Born: 14 May 2003, K&N Drop In Air filter, Mach1Canuck Special IAC restrictor plate, Black Bumper mustang letters, MRT H Pipe and magnaflow cat back, MRT Chrome exhaust extensions,Mach 1 Floor Matts, bought new 2003 first registered for road use in 2010. ___________________ 1969 351w 4v Mach 1, Red, 4 speed toploader SOLD Feb 2007 2000GT Red , Auto Right Hand Drive sold 2004.