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I know this has to have been covered before, probably a few times. I did do a search, but I got so many returns that I couldn't find the info I wanted within the time I had. If someone could point me to an appropriate thread to answer my question, I'd appreciate it. That way, the same discussion doesn't have to be repeated...
What I want to know is if the Borla exhaust is significantly better then the stock SVT exhaust with resonator replaced with a high-flow muffler. Both are stainless, 2.25" pipe, with dual outlets, right? Where's the advantage?
Rick Barnes
Zexel Torsen Inc
'66 Ranchero
'72 Yamaha R5C
'84 EXP Turbo Coupe
'88 Mazda 323GTX
'99 Contour SVT
'02 Ranger FX4
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... likely in the mufflers and the rear split from single pipe to dual split - Borla may be more "Y" shape than stock "T". I'll be replacing my stock mufflers with Magnaflows and possibly fixing the "T" on my stock piping this weekend - hope to get to the dyno soon after that. I've been plateauing after 5500 and I think the stock mufflers are holding me back there - should hopefully increase my 174 HP by a few. Originally posted by Rick @ Torsen:
I know this has to have been covered before, probably a few times. I did do a search, but I got so many returns that I couldn't find the info I wanted within the time I had. If someone could point me to an appropriate thread to answer my question, I'd appreciate it. That way, the same discussion doesn't have to be repeated...
What I want to know is if the Borla exhaust is significantly better then the stock SVT exhaust with resonator replaced with a high-flow muffler. Both are stainless, 2.25" pipe, with dual outlets, right? Where's the advantage?
Black 98.5 SVT w/ KKM intake, 73mm MAF, ASP pulley, Optimized stock Y-Pipe, 24mm hollow rear sway bar, Magnaflow resonator, Magnaflow mufflers, Roush springs, KYB struts
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Joined: Jan 2001
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I have the Borla, and I love it. Haven't dynoed yet, but my butt dyno noticed a difference. The Borla, I know is all stainless and it also has the million mile warranty. It looks a lot nicer than the stock SVT exhaust. I am happy with mine, sorry if I couldn't answer all your questions?? Here is a link to a pic of the tips on the Borla.http://www.thinkingcapdesign.com/KeithsSVT/
99 SVT Green/Tan #44 TH-Fix, Aussie Pipe, PRO-M, SHO-Shop Y, Borla, and other Misc. 93 Tracer LTS Eibach, K&N, Misc (now my winter beater) email me: keith@thinkingcapdesign.com My Car: http://www.thinkingcapdesign.com/KeithsSVT/
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Joined: Sep 2000
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The stock SVT exhaust has 3 weak points.
2" resonator on 2.25" pipe (2 HP)
Rear Y split is crush fit (like the Y-pipe) (few HP!)
Rear mufflers are simple baffled design (2 HP)
So theoretically fix those weakness and you should make what the aftermarkets do...
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Joined: Jul 2000
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Originally posted by Rick @ Torsen:
I know this has to have been covered before, probably a few times. I did do a search, but I got so many returns that I couldn't find the info I wanted within the time I had. If someone could point me to an appropriate thread to answer my question, I'd appreciate it. That way, the same discussion doesn't have to be repeated...
What I want to know is if the Borla exhaust is significantly better then the stock SVT exhaust with resonator replaced with a high-flow muffler. Both are stainless, 2.25" pipe, with dual outlets, right? Where's the advantage? Rick Way back when, we saw a relatively stock SVT with a KKM gain 8hp when the Borla was added. One point to make is that his before runs were when his SVT was relatively new and his after runs were performed after a lot of miles were added to the car. Also the runs were done months apart, as seen by the temperatures. Forgot to mention that he did have the resonator removed and a glass pack installed on the before runs. Here is the graph. 
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Joined: Aug 2000
Posts: 206
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Thanks for the info. I guess I'm still on the fence as to whether that's worth the $$$ or not, although the bump in low end torque looks good. I'd probably be inclined to replace the y-pipe first anyway...
Rick Barnes
Zexel Torsen Inc
'66 Ranchero
'72 Yamaha R5C
'84 EXP Turbo Coupe
'88 Mazda 323GTX
'99 Contour SVT
'02 Ranger FX4
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Not sure about the svt, but My SE has crush bends instead of most aftermarket catbacks mandrell bends. So that should net an hp or two over stock, plus a little more as the mods continue.
98 SE
BAT Big Brake Kit "C", Throttle Hang Fix, B&M Shifter, Lightly Cracked Secondaries, BAT Euro Handling Kit, 20% tint, Removed Ding Strips, ES Motor Mount Inserts, Borla CatBack, Apexi SAFC, HighTower Rear Brace, BAT 19mm rear bar, MSDS Headers & Y, AFE 20-35008 filter, ClutchMasters Stage 1, Fidanza FlyWheel, SVT T.B.
====OnOrder====
svt uppers and lowers,
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Rick,
If the price is really the problem I have a brand new (still in the box from SPMotorsports) that I'm selling for $450 ($300 if you buy the car as well.)
Andy
Ace77seven77@yahoo.com
2000 SVT
#615 (11/30/99)
Silver Frost
17x7 OZ Superleggera, 215/45 SO-3 PP, BAT European Handling Kit
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