So I bought new JBA headers, magnaflow Y pipe, and flowermasters american thunder cat back system and everything is currenty in transit. My question is if I keep my stock catalytic converter will I lose performance? is the stock catalytic converter really restrictive? If so Id rather get everything all done at once. as my wife says, If your down there might as well put it all in LOL.
how big a collector is coming off the headers? My pacesetter's were 3" so i had my muffler guy do all 3" piping from the headers back. What he did was cut the cats back a little bit so the openings on ether end were 3" dia....
-fast freddie- one quick 05 hemi qc...with over 280k miles on odo... on the 5.7, stoker 6.4 now...Inertia Motorsports 392 stroker
5.7 e.t.'s: 1/8 - email@example.com, 1/4 - firstname.lastname@example.org juice - 12.96 NA... 6.4 e.t. 12.54@107 NA 2005 Dodge Ram 1500 QC SLT: 12.107 @ 113.960 MPH