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Hell yeah I did. The car idled smoother, had better throttle response, pulled harder all the way to redline (especially 6000rpm+), and ran a bit cooler on the ol' "NORMAL" temp guage. Find a weekend, grab a buddy, some beer (only if you're 21+ kids :) ), the shop manual, and get to work!

My 98 currently has 76,000 miles on it and I got it when it had 54,000. The first day/weekend I brought it home from the dealer here is what I did: 1) Coolant flush/replace (water wetter added) 2) Tranny oil change 3) Engine oil/filter change 4) New PCV valve 5) New accessory belt 6) New...

I have an N/A '98 Cobra with 4.30s. I too struggled for a while trying to figure out which gear to put it. After talking to many Cobra owners the general thought seemed to be, "These cars love to rev, so don't fear the gear." So I crossed my fingers, threw in the 4.30s, and have never looked...

A buddy of mine with a '00 GT picked up 29 RWHP with just BBK long tubes alone. On the nitrous (100 shot tnt wet) the BBK long tubes netted him 51 RWHP. Lots of people don't believe it but I saw the dyno sheets! :) He does have a bunch of other stuff done to the car, but he dynoed just before...

He has a densecharger intake. But remember he picked up 31 RWHP with just the headers. He actually had the prochamber, dumps, and intake on before the headers. So yeah, he picked up 31 RWHP with just headers... on a GT! My guess since you are going from completely stock exhaust (right?) to...

A friend of mine has a '00 GT and installed BBK longtubes, MAC prochamber, and MAC catback (dumped actually) and picked up: 31 RWHP N/A 54 RWHP 100 shot of nitrous (tnt wet kit) I just installed MAC longtubes, MAC O/R H, and dumps on my '98 Cobra but I have yet to dyno as I'm breaking...

I've got a full MAC system on my 98 Cobra... LTs, O/R H, Dumps... works perfectly! Loud and mean. The MAC LTs I've seen ruin the 4v motors are the ones whos owners get 'em and bolt 'em right up. Granted you should be able to do that with any part, but I never install any part on my car...

What are "MAC LT CC?" Does the CC denote something different than the normal MAC longtubes? Oh oops... ceramic coated... my bad... I got my MAC LTs JetHot coated inside and out for $250.

I have a 98 Cobra with 4.30s. Here are the vibration results before and after the gears: ----------------------- Stock gears/driveshaft: ----------------------- 000 - 150mph = no vibration. --------------------------- 4.30 gears/stock driveshaft: --------------------------- 000 -...

Should I just re-use the factory bolts when installing my longtubes? Or are there some type of special locking bolts?

BBK LTs fit to MAC H Anyone know if BBK long tubes will bolt up to a MAC o/r 2.5" H?

Anyone know if the mac o/r h (shortie) will fit with the bbk LTs?

I picked up LTs + O/R pipe and need some MIL eliminators. Don't I need a total of 4 elminators? All MIL elminator kits I've seen for sale seem to have 2 in the kit... but the LT headers + O/R have a total of 4 O2 sensors...

I also have a 98 Cobra and wanted a prochamber for it. I called MAC twice and spoke to two different people; both immediately said NO they do not make a prochamber for the 98 Cobra and then went on to explain the reason they don't make it is that something on the car got in the way blah blah...

I haven't purchased the BBK LTs yet but if they'll fit my MAC H I'll buy them over MAC LTs...

Is there a MAC prochamber avaliable for the 98 cobra? I was on the MAC website but couldn't find it. I saw it for the 96-98 GT and the 99-03 GT/Cobra. Thanks in advance.