Discuss 2008 Mustang GT...Should I install new spark plugs and if yes, which ones are best? on AllFordMustangs.com, the place for Mustang enthusiasts.
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#1 permalink
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Bullard
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2008 Mustang GT...Should I install new spark plugs and if yes, which ones are best? I am taking my
Stang to my dealership to have some warranty work done on it and my UDP's installed. Should I go ahead and upgrade my spark plugs? Or if it ain't broke, don't fix it. Second, which spark plugs have you all found to be the absolute best? Iridium?
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2008 GT Mustang 4.6L, K&N CAI w/ Brenspeed 93 tune, Steeda UDPs, Flowmaster, Royal Purple Oil, and Shorty antenna, 3.55 gear ratio
#2 permalink
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Cut Off
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No need for new plugs rightnow if it's not misfiring.
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2006 GT black (AUTO)IUP Saleen supercharger:Saleen Super Shaker 3.2 pulley: GT500 fuel pump: Roush tensioner:XCAL2 :JBA Long tube headers:JBA O/R H-pipe:JBA axle back exhaust:
YNOMAX Resonaters:Strange3:90 gears:TCI 3000:BMR upper and lower control arms with relocation brackets:Power house drive shaft:cervini ducktail wing: cervini side scoops
#3 permalink
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Agree. The stockers are fine. When you do change, the HT1s are best for a N/A application.
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Bullard
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Sweeeeeet. Thanks guys!
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2008 GT Mustang 4.6L, K&N CAI w/ Brenspeed 93 tune, Steeda UDPs, Flowmaster, Royal Purple Oil, and Shorty antenna, 3.55 gear ratio
#5 permalink
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I thought the HT1's were the stocker's. If not, what comes stock?
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07 GT premium in Grabber Orange. 5spd. manual w/IUP, plenum cover,3.55's, Roush scoop, 14" antenna, C&L CAI, Bamachips 93 Predator tune, Steeda U/D pulleys, Hurst shifter, FRPP GTA's, CDC chin spoiler, CHE LCA, BMR panhard bar, Eibach Pro Kit. FRPP 17" black bullitts and 255R45 Firestones, Spydershaft aluminum driveshaft, MSD coils, D-Specs, Prothane motor mounts, BMR LCA brace, Steeda panhard brace, BMR adj. UCA, Webelectric sequentials, Mikronited FRPP 4.10's.
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Quote:
Originally Posted by
jgard07 I thought the HT1's were the stocker's. If not, what comes stock?
HT1 are the stock plugs. HT0 are for forced injection and nitrous.
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2005 Mustang GT with 04 Cobra iron block, 300 ci, Kenne Bell 2.6l twin screw, P&P S3 Heads, SS valves, Comp S3 cams, Currie 9+ 9" rear end and DS (coming soon), Hurst shifter, BMR K-member, A-arms, LCAs & UCA, JBA long tubes & mid-pipe, Accel COPs, GT500 fuel pumps, much more...659 RWHP, 598 Tq @ 12 psi & 5800 RPM
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Quote:
Originally Posted by
5twenty HT1 are the stock plugs. HT0 are for forced injection and nitrous.
That's what I thought too.
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07 GT premium in Grabber Orange. 5spd. manual w/IUP, plenum cover,3.55's, Roush scoop, 14" antenna, C&L CAI, Bamachips 93 Predator tune, Steeda U/D pulleys, Hurst shifter, FRPP GTA's, CDC chin spoiler, CHE LCA, BMR panhard bar, Eibach Pro Kit. FRPP 17" black bullitts and 255R45 Firestones, Spydershaft aluminum driveshaft, MSD coils, D-Specs, Prothane motor mounts, BMR LCA brace, Steeda panhard brace, BMR adj. UCA, Webelectric sequentials, Mikronited FRPP 4.10's.
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hmm, what about a performance plug?
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05' GT Premium, Triple Black, Hurst Short Throw Shifter, DiabloSport Performance Tune for 93 Octane, FRPP Spring Lowering Kit, Auto Meter Gauges and Tach. Light, White 10" Rally Stripes, K & N CAI, White Faced Steeda Gauges, 8" Shortie Ant., 18" Chrome Deep Dish Rims with Toyo TS-1S's, Strut Tower Brace, Borla Catback Exhaust System, Red Line Tuning Hood Lift Kit, Eclipse AVN 5500 Nav. System, 6.5" kappa speakers, 12" Subwoofer, 500w Kicker Amp., 3.73 Yukon Gears
#9 permalink
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The stock plugs are Motorcraft. HTs are Autolite. Same design and same heat range.
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Quote:
Originally Posted by
HazMatLadder26 hmm, what about a performance plug?
Your performance plug is the HT0, but is not needed on N/A. One heat range colder, and as others had stated, is meant for FI, Turbo, or Nos. If you wanted to upgrade that area I would consider:
Granatelli Coil on Plug Connection Kit [28-1812S] - $205.00 from Modern Speed Machines
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05 Mustang GT Coupe "Black Betty"
FRPP "hotrod" cams,C&L "racer" cai,Steeda UDP's/Delete plates,SLP LT headers/X-pipe(catted)/Loudmouths,Hurst shifter,Powerhouse DS w/Loop,Spec-2 clutch,FRPP 4.10 gears,Eibach "prokit" springs,CHE upper/lower arms w/brackets,18x9-255/45,18x10-295/45 Nitto 555,Shaker hood,CDC-classic spoiler/sequential lights/trunk pouch,Street Scene louvers,Head light/tail light covers,Upper/Lower Billet grill,Interior "bling"
Dyno tuned by Mustang Motorsports
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Bullard
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I like the performance now...it's just usually the aftermarket stuff squeezes more energy outta the engine!
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2008 GT Mustang 4.6L, K&N CAI w/ Brenspeed 93 tune, Steeda UDPs, Flowmaster, Royal Purple Oil, and Shorty antenna, 3.55 gear ratio
#12 permalink
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I went to that website and darn YOU 05FlStangGT! Ha, ha, ha. Now I have another thing I want for my Mustang!
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2008 GT Mustang 4.6L, K&N CAI w/ Brenspeed 93 tune, Steeda UDPs, Flowmaster, Royal Purple Oil, and Shorty antenna, 3.55 gear ratio
#13 permalink
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Just went to the site, those COP's (Coil On Plug)
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2008 Mustang GT Premium 5 speed, 3.55 gears, black-on-black, IUP, 18in polished aluminum wheels, FRPP GTA Axle Backs, JLT II CAI w/SCT X-Cal 2. 296HP & 311TQ
#14 permalink
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Bullard
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That is true....dyno's are the biblical truth of all claims!
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2008 GT Mustang 4.6L, K&N CAI w/ Brenspeed 93 tune, Steeda UDPs, Flowmaster, Royal Purple Oil, and Shorty antenna, 3.55 gear ratio
#15 permalink
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Houston
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Quote:
Originally Posted by
thomasusmc Just went to the site, those COP's (Coil On Plug)
We went through this on the Marauder boards... and it was disproved by a couple of members.
And no, I'm not looking up the links, 'cos I'm a Mustang owner now
2008 Mustang GT...Should I install new spark plugs and if yes, which ones are best? 
YNOMAX Resonaters:Strange3:90 gears:TCI 3000:BMR upper and lower control arms with relocation brackets:Power house drive shaft:cervini ducktail wing: cervini side scoops
