header help
I'm looking for a set of headers that will go good with my 1998 grand marquis. And suggestions?
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Headers On A Grand Marquis !??
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Originally Posted by grandmarquis98
(Post 16483)
I'm looking for a set of headers that will go good with my 1998 grand marquis. And suggestions?
The stock exhaust manifolds can handle all the power that you can get out of the 4.6 V-8 without extensive modifications to the engine. To get the most from your stock Grand Marquis exhaust system, invest in a set of dual exhausts -- Walker H-pipe, 2" x 3.5" x 21" Magnaflow Glasspacks, and Walker Tailpipes. Part numbers for the 1998 Grand Marquis = H-Pipe = Walker #50412 Gaskets (2)= Fel-Pro #60924 Mufflers = MagnaFlow #18134 MagnaFlow #18134. Aluminized steel construction prevents rust-out. Proprietary "RockWool" packing resists blow-out. Overall length - 26". Muffler body - 22". Muffler overall diameter - 3.5". 2" center inlet. 2", straight-through, perforated core. 2" center outlet. Perforated core with NO LOUVERS that restrict exhaust flow. Reversible - non-directional - flows equally in both directions. Mufflers are very well made, with perfect welds and solid construction. Once installed on a 4.6 Liter FOMOCO V8, the sound is excellent, with a powerful rumble when accelerating, and a smooth tone at highway speeds. Never noisy or objectionable -- just a mellow, powerful tone from idle to wide open throttle. 80mph = 2000 rpm on the 4.6 Liter V8 -- and the sound inside the car allows for normal conversation. Outside of the car, the sound was measured with a Sound Meter: With the Meter at same height as the pipe tips - centered between pipe tips - 3 feet back. 88.7db @ start-up -- 84 db @ warmed-up idle. Not too loud - not too quiet - just a pleasant tone from the V-8 engine When compared to other glasspacks and performance mufflers, the MagnaFlows meet all of my requirements for design, construction, and performance -- and the PRICE/PERFORMANCE ratio is outstanding ! Left Side Tailpipe = Walker #56007 Right Side Tailpipe = Walker #55155 This combo will yield 22 hp over the stock exhaust, as tested with a G-Tech Pro. |
https://cimg3.ibsrv.net/gimg/www.mer...7606bab416.jpg
Walker H-Pipe; MagnaFlow #18134 Glasspacks; Walker Tailpipes; Superior Tips. https://cimg2.ibsrv.net/gimg/www.mer...6b41ebbd19.jpg Custom Dual Exhaust Exits; Superior Tips Checked out those Grand Marquis headers at that website -- COOL headers, but ELEVEN HUNDRED DOLLARS per set !! NOT a good idea, OR a wise investment. A well-made, street-legal, high-performance cat-back system = 20-24 HP = about $300, installed. |
Thanks
I was wanting to know the same thing....you answer was very helpful. Thanks !
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Here's a pic of the dual exhausts on the 95 MERC;
https://cimg0.ibsrv.net/gimg/www.mer...f5d66ee606.jpg Walker H-Pipe; MagnaFlow Glasspax; Walker Tailpipes. I got all of the parts at Amazon.com -- Installed the H-Pipe myself, then had the rest welded up at MufflerMasters, Avondale, AZ. Strong rumble, smooth tone; no droning. |
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