Ordered a Gibson sweptside from jcwhitney catalog 413-3j-10 and used the 15% 0ff coupon from catalog 631j for a total of 256.41 inc.the shipping to az.Does anyone have it installed on their 4.2 and how do you like it any noticeable improvement on the low end or any drone at highway speeds.Thanks for any replies.

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------------------------- 99 SILVER XLT/REG.CAB/4.2/5SPD/3.55/K&N Airbox Mod/Rhino muffler/Westin Black nerfs and now SuperChiped

 

Got good low end response and no drone. Not much (if any) louder than stock exhaust. Good power gain and well worth the money. Be sure and install muffler with scoops pointing toward the front if you want your power gain to be on the low end.

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'98 F150 XL Regular Cab, LWB, 4.2L V6, 5 Spd, 3.55 LS, Rhino Lining, factory heavy duty suspension, 3" Gibson Swept Side Cat Back, K&N filter, Oxford White minus the two tone garbage. BIG TIME FoMoCo p/u fan, not some fair weather hammerhead.

 

Thanks Ford man I saw on your signature you have the same set up as mine and did a search for your comments on the gibson but couldnt find any,so I was hoping to get a response from you.thanks again.

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------------------------- 99 SILVER XLT/REG.CAB/4.2/5SPD/3.55/K&N Airbox Mod/Rhino muffler/Westin Black nerfs and now SuperChiped



[This message has been edited by mike150 (edited 10-18-1999).]

 

Ford Man,
The 3" diameter didn't kill your low-end? I've heard that the increased size detracts from the bottom end torque, which is the reason I didn't install one yet. Is there really a noticable diference in power? Thanks in advance!! Doc

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1999 F-150 WS 4.2 5-speed, reg. cab, short bed, Sport Grill, Pioneer DEH-P4000 CD, Rockford's 5 1/4 in the corners, Tinted windows, more to come....

 

Ford man, Did you try the Gibson with the louvers pointed the other way and if so what was the difference?Also did you call Gibson and ask them if the 3" exahuast would be too large for the 4.2 since the sweptside is also used for the 5.4?Still getting the gibson just thought of some more questions since your the only one I have heard from that has the sweptside for the 4.2 and 5-speed.Thanks again

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------------------------- 99 SILVER XLT/REG.CAB/4.2/5SPD/3.55/K&N Airbox Mod/Rhino muffler/Westin Black nerfs and now SuperChiped

 

Ford man still out there ?

 

No, the 3" pipe did not hurt the low end torque at all. When used with the muffler provided by Gibson, back pressure is properly maintained. I did, in fact, discuss all of this at length with various Gibson personnel. And lastly, no, I did not try the muffler in both directions.

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'98 F150 XL Regular Cab, LWB, 4.2L V6, 5 Spd, 3.55 LS, Rhino Lining, factory heavy duty suspension, 3" Gibson Swept Side Cat Back, K&N filter, Oxford White minus the two tone garbage. BIG TIME FoMoCo p/u fan, not some fair weather hammerhead.

 

mike150,
where did you get the 15% off coupon at? I live just a little bit from one of their distribution centers, so i would not need to pay for shipping

 

I got the 15% off from catalog #631j it was to me from jc whitney.

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------------------------- 99 SILVER XLT/REG.CAB/4.2/5SPD/3.55/K&N Airbox Mod/Gibson Sweptside/Westin Black nerfs and now SuperChiped