I have the bassani high flow cats,81mm amf power pipe.The high flow cats are worth 6 to 8hp at the rear wheels.The power pipe and 81mm are worth another 8 to10hp.together they help each other so i gained 21hp at the rear wheels..hope this help..the cats came from www.paulshp.com..the power pipe and 81mm is from www.andersonfordmotosport.com..
Eric, thanks for the info. I'm anxious to see what increases you receive. I've had a bassani xpipe w/cats on my vorteched 98 Cobra for akmost three years. I love it and the car passes inspection quite easily here in Texas (500+hp to boot).
You will pick some power/tq up from just the break-in. I dynoed 236hp/272tq at 480 miles, 239hp/275tq at 2200 miles, and 241hp/280tq at 6700 miles. So, it looks like the break-in was good for around 5hp and 8tq at the wheels.
A forum community dedicated to Mustang Bullitt owners and enthusiasts. Come join the discussion about performance, production numbers, restoration, modifications, classifieds, troubleshooting, maintenance, and more!