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I'm going to have my Thermal from my SH and getting a base model so I can't use the entire thing. However I have two questions...not really related. First could I use just the pipe from the cat to the axle back section if the muffler shop cut off the flange and used a slip joint to the new custom rear section?
Next but also an exhaust question, at what point does it make more sense to go 2.5" instead of 2.25"? Initially I'm going to wait on the header but I'm going to put my CAI, and AEM pulleys on right away and do the new exhaust. If I get the entire cat back replaced custom I'd like to think ahead and do the piping accordingly. I'm not sure how far I'll go after I/H/E & pulleys but most likely a little further down the line I'll do some more work. However I'm not going so far as to do cams, head work, or new pistons. Is there any formula for how much hp you can put out before the 2.25" exhaust becomes too restrictive?
Thanks
Next but also an exhaust question, at what point does it make more sense to go 2.5" instead of 2.25"? Initially I'm going to wait on the header but I'm going to put my CAI, and AEM pulleys on right away and do the new exhaust. If I get the entire cat back replaced custom I'd like to think ahead and do the piping accordingly. I'm not sure how far I'll go after I/H/E & pulleys but most likely a little further down the line I'll do some more work. However I'm not going so far as to do cams, head work, or new pistons. Is there any formula for how much hp you can put out before the 2.25" exhaust becomes too restrictive?
Thanks