X-pipe?
http://www.magnaflow.com/02product/s...rtnumber=15166
my car was used as Magnaflows prototype car. The car gained 12RWHP with the x pipe and cat back.

my car was used as Magnaflows prototype car. The car gained 12RWHP with the x pipe and cat back.

offroad x pipe and tune is worth more than 25 rwhp on a Mustang dyno...search sometime April last year when Evo installed the Maggy x pipe, JLT intake, and Lund tuned the very first Boss 
...hehe, mine!!!
On topic........ according to a Ford powertrain engineer I had spoken with the cat delete is the VERY best mod as far as bang for the buck on the Boss!!!

...hehe, mine!!!
On topic........ according to a Ford powertrain engineer I had spoken with the cat delete is the VERY best mod as far as bang for the buck on the Boss!!!
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MRGTX
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