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Well... all I know is that I get compliments on my Dr. Gas and Flowmaster cat-back everyday. Young people, old people, GIRLS... I don't know if it's just really loud or if it really sounds THAT good, but it sure is a crowd pleaser. Sounds about right from the driver's seat too :nice:

I just got the American Thunder cat-back, and I like it. I ran a best of [email protected] before with Dynomax Ultra flo's dumped... switched to the flows and installing a Steeda T/A at 15* and I ran a best of [email protected]. I'm sure the power gain was mostly from the T/A, but I definitely did not LOSE...

Dr Gas all the way! I thought it sounded good before, but I just installed my Flowmaster cat-back and OMG! I didn't think a stock 4.6 could sound like this...

I've only had one midpipe on my car besides the stock one, and I've never had longtubes on it but... I felt a BIG gain from the Dr. Gas X-pipe and would do it again in a heartbeat :nice:

I would go with 555R's in back and one of the other tires in front if you intend to do and drag racing with it. KD's are good, but so are the new Kumho Ecsta MX's and Goodyear Eagle GS-D3 are supposed to be very close in dry weather with a big advantage in the rain. It all depends on what you...

I only race V6's when they instigate... and sometimes I'll mistake one for an 8 if it has dual-exhaust and I'm not paying attention. Otherwise I try to stick to racing cars that are more of a fair match (no offense)... or ricers when their cars are reallly reallly ugly and I need some tire...

Has anyone ever tried this as an alternative to 4-cyl Fox springs? Would this even work?

I noticed that smoothing on the plot was set for 5... that can make the peak numbers more honest, but with smoothing off and a jagged plot, you could easily have a peak reading that's 3-5hp higher.

That's disappointing... but maybe with that much work done, the car would've needed a custom tune for the new intake? A/F ratio could have been thrown way off... maybe, who knows.

My favorite is the Pro 5.0 with the Pro 5.0 handle... I actually have a Steeda handle, but perfer the shorter one. Then again I'm 6', but have really long arms... sucks trying to find shirts that fit, lol

Great comparison... to be fair, the C&L is supposed to make 2-3 more horsepower with the 75mm TB than with the 70mm TB according to C&L, while Accufab says their plenum works the best with a 70mm. So my feeling is that the Accufab + 70 combo should be almost exactly the same as the C&L + 75 combo.

If you're doing everything else, I can't see skipping on the plenum. I went from a ported stock plenum to a C&L and Accufab 75mm TB and felt a very noticable gain. More than I did from my Dr. Gas X-pipe even...

My Dr. Gas X made a nice difference. I used to get beat consistently by my friend's camaro (89 IROC with a 400 CI small block, mild cam, Ford 9", etc.) by about 1-2 car lengths... he'd get me on the launch and then neither of us would pull. Now I pull him pretty hard through 2nd, 3rd and...