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  1. barspen

    Cat's, O2 issue

    Hi All Went for a short mountain drive last weekend and threw a coil pack/ignition CEL. Then I noticed i was getting about 50-miles per 1/4 tank (much less than normal). Also had a rattle that I thought was a loose side pipe bolt. Finally, started pulling coil packs to replace them this...
  2. barspen

    6 Point harness lap\sub bracket for Sale

    Decided to go back to 'stock' safety setup on my 2011 GT500 after running a Watson roll bar for the past two track seasons (5 sessions). Loved the setup but turning the car more into a Daily Driver. Items below are for sale, boxed and ready to ship from AZ. Schroth Profi II 6H 6-point harness...
  3. barspen

    Hydraulics makeover

    After about a year of frustration with the ‘feel’ of my RXT clutch, I found a post by Lexustech48 about worn out the clutch master cylinders causing harshness such as noise, high engagement, rough feel, etc. I had many of the same issues and thought a swap of the master cycler wouldn’t hurt and...
  4. barspen

    Transmission mount bushings

    Car has been at the dealership getting a new clutch installed and my service advisor called to suggest I get a new transmission rear support mount because the bushing are worn. I've not heard of anyone needing this, but wanted to see if anyone else has. Also, if I can just replace the bushings...
  5. barspen

    Help - Clutch issue?

    Had an issue today driving to work. Had a hard shift into 1st gear in stop-and-go traffic. Afterward, the clutch felt very soft going to the floor and ‘sticky’ on the top end. Afterward, it sounded like small pebbles hitting the undercarriage. Car was still drivable, no warning lights, etc...
  6. barspen

    New suspension parts - Getting loud pop on quick turns

    Installed Koni Adjustable struts and a Eibach sway bar last weekend and now I'm getting a very loud popping noise when I make a tight turn with a fair amount of speed. It happens on both side of the car and it's pretty consistent. If I do a granny-style turn, I don't hear it. But when the...
  7. barspen

    Aero mods worth it?

    Any opinions on front or rear aero mod for road courses days? Debating on Boss302-style front splitter and/or rear wing. I need to make sure I can go back to stock (or close) since this is my car is a DD. Showing up to client meetings with a rear wing would not go over well (probably not...
  8. barspen

    FRPP Side Pipes - Thx Santa

    After debating my next move to find the right exhaust note, I decided to try out the Ford Racing side pipe kit to add a little dimension and volume to my sound. I picked this kit for a couple reason: 1) It’s kind of unique for a GT500 2) It wasn’t crazy expensive 3) Not looking for extra power...
  9. barspen

    UCA bushing on axle gone bad?

    Axle bushing gone bad? Started noticing some 'popping' at slow speed when shifting gears and hitting the accelerator. Suspected something in the rear suspension loosened up on me, so I raised the back to check it out. Everything seemed good (shocks, LCA, sway bar, panhard), but I noticed some...
  10. barspen

    How to ID leaking shock\strut??

    Had my car at the dealership a few weeks back for some unrelated work and the tech wrote up that I have a "leaking front left shock". Surprised they call it a "shock" when the front's are struts, but maybe Im too picky :). I asked for more specific from the service advisor, but he was no help...
  11. barspen

    Broken boot on driveshaft - Help

    Doing a transmission flush today, I noticed grease on the passenger side frame near the H-Pipe. After a closer look, the rubber boot between the 2-piece driveshaft is cracked (pictures later today). Headed to the dealership (still under warrantee) to see if they will cover it. Couple...
  12. barspen

    Coil slap - be gone!

    I don't see a much written up on Mustang forums about 'coil slap', but thought I'd share my experience since I'm guessing others have the issue and just put up with it. Coil slap is the rear 'creaking' sound when going over speed bumps or slated driveways. If you back out of a slated driveway...
  13. barspen

    Brake upgrade on a budget

    As much as I would like to sink a few thousand dollars into upgrading my brake system, it just wasn’t in the cards. So I opted to go with a modified setup in hopes of getting some additional stopping power on the street and track, cleaning up the ‘look’ and spending less than $1000. I wanted...
  14. barspen

    Help - New CAI, throwing codes

    Just installed my first performance mod - JTL 127mm CF CAI. After about 40 miles of driving it threw 'too lean' codes - P0171 & P0174. I have read a few threads and will be checking the connections, etc. later tonight. I datalogged and I'm working with my tuner to try and resolve, but wanted...
  15. barspen

    Oil on block, above valve covers...

    Oil above coil covers... I just noticed a thin film of oil above the passenger side coil covers. Haven't noticed it before, but may not have been paying attention. Spark plugs changed 13-month ago. No performance mods except a tune. I have a JTL oil separator installed that is getting a fair...
  16. barspen

    Starting performance mods - where to start?

    Spent the last year doing suspension upgrades, now I'm putting my list together for performance mods. I plan to get a new SCT tuner in the next month or so. Also planning on doing one mod at a time over the next year, verses buying\installing everything at once. After the tuner, should I...
  17. barspen

    FS Ford Racing GT500 Axle Back Exhaust ('11-'12) - Almost New

    Returned - Ford Racing GT500 Axle Back Exhaust ('11-'12) RETURNED Ford Racing M-5230-MSVTLA GT500 axle back exhaust in excellent condition. Fits '11-'12 GT500. These are similar to Borla S axle backs. I put about 250 miles on them. Like the deep tone, but miss some of the 'gurgle' on...
  18. barspen

    Loud 'clicking' noise showed up

    I just started hearing an annoying clicking noise that sounds like it coming from the front part of the car, somewhere between the front sway bar and H-Pipe. A few things I noticed: - I can only hear it at slow speed or idle. Haven't noticed it at all on the HWY - It seem more pronounced...
  19. barspen

    Car drifting after adjustable front end links installed

    I just installed a set of Stallion Suspension front sway bar adjustable end links. Install went fairly smooth (I'll posted about it later). During my first test drive, the car seems to drift to the right after a few seconds of lifting my hands from the wheel. Seem like its out of...

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