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Old 03-28-2012, 05:50 PM   #36
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Re: Mac longtubes or pacesetters?

I had pacesetters with o/r h pipe no cats and flow master 40's on mine for a lil then went to mac longtube and an o/r h pipe no cats and flow master 40's not a huge dif just longtube headers you have to mess with the dipstick and some other little things to get them to fit right in my opinion pace setter shorty are easier to put on and sound close to the same just make sure you delete the cats and get the MIL eliminator plug from am. Well worth it!
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Old 03-28-2012, 09:30 PM   #37
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Re: Mac longtubes or pacesetters?

I went with Stainles Works (SW) high flow metallic cats because of size restraints. I think it worked out well and helped balance out the system keeping a great amount of low end torque. Worked out great for me anyways. But yeah, if you go the route you explained, it will turn out perfect with no problems or codes!
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Old 03-29-2012, 10:12 AM   #38
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Re: Mac longtubes or pacesetters?

A tune removes the codes anyways...
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Old 04-01-2012, 04:55 PM   #39
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It all depends on what you want. Shortys are known to get more HP outta your motor but long tubes give you better torque and bottom end. I think the absolute best route would be full tuned length headers. That way the exhaust savaging for all cylinders will be optimized. It would be easier to deal with the Shortys but if you think about it, all the drag cars and big motors run full length tuned headers. For the best set up I would do long tube to high flows to x pipe to magnaflows (or comparable straight through glass pack) to your choice of tips. I'm not a fan of flowmaster cuz the use chambers and angles to absorb sound and for tone where magnaflow is straight through (a better option for those of you wanting to run supers or turbos). I agree flowmaster is "louder" but magnaflow has a deep, sweet, smooth tone that gets louder over time as the fiber glass packing breaks down a little.
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Old 04-02-2012, 03:44 AM   #40
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Re: Mac longtubes or pacesetters?

I believe some of your information there is a little off. Check out this article and maybe re-think it a bit. I learned alot from reading it over a few times. 20+ years of testing resulted in this article.
Auto Exhaust Science
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Old 04-02-2012, 09:15 AM   #41
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Re: Mac longtubes or pacesetters?

good article... but even with a Blower and serious internal work, these v6 engines won't ever have the need for such detailed exhaust work. This article is meant for high output v8s that need every little bit of HP gains for the track... good, detailed article though
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Old 04-03-2012, 09:32 AM   #42
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Quote:
Originally Posted by robb15033

For the sake of the final product sound-wise, I suggest you at least put on high flow cats.
I have no cats on mine sounds amazing under 3200 rpm so deep heard one with high flow cats definitely quieter if you want a loud deep rumble definitely go without cats!
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Old 04-04-2012, 06:32 PM   #43
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Re: Mac longtubes or pacesetters?

I went outside and recorded this 10 minutes ago. A quick video. It has MAC LT headers, SW high flow cats, prochamber, and Flowmasters.
FYI:
SN95 V6 ProChamber Flowmaster Mustang - YouTube
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