Im going to be getting some Mac pro dumps for my 97 gt. I would like to know how this is gunna sound with the stock h pipe, and if it will be that LOUD im looking for, also will the 2.5 inch pro dumps bolt right up to my stock h-pipe?

 

they will bolt right up. they will make it louder and have a nice ruble inside. but with the stock h-pipe its not gonna be to loud no car with cats is gonna be wicked loud. I have an off road h-pipe with pro dumps its pretty sweet i love it its rubles at idle and then smooth outs when crusing till i go to WOT.

 

thanks for the reply man, yea i just want it to be alot louder than stock, and i gotta be louder than my bros SLP loudmouth camaro.........which i say the pro dumps will fulfill that.

 

well i had slp with my off road h-pipe and the slp was louder only at wot. other wise it wasnt much louder then my setup i have now. but the h-pipe with macs sounds alot smoother and cleanner, just rumlbes as it idles.

 

dumps and mac's are going to resonate the interior HARD. be prepared for that. I had flows with dumps on a bassani catted x and it was just too loud inside. I get the same outside sound now with Borla ProXS mufflers with dumps but the inside noise is waaaaaaay less. It's still uncomfortably with dumps anyway because the exhaust is pulsing against the floorboard and ricocheting off the ground but it's at least tolerable now.

I got LOTS of compliments on the exterior sound of dumped flowmasters with a bassani catted x, really sounded big block. I get a shout out now and again from a passer-by but not like I did with the flows.

Resonators like Mac and flowmaster and Loudmouth make more interior noise, mufflers like bassani muffs actually quiet sound but through bigger pipes so less backpressure, straight through muffs like cherry bombs, Borla ProXS, glass packs,etc... are quieter but have less big block sound.

 

thanks for the reply, im pretty used to being inside a loud car, since my bro has the slp loudmouth on his Z28, im sure it will probbly be even louder inside but, i like my cars loud and the pro dumps are in my price range, and im sure they will give me that big muscle sound im looking for, i can always weld the stock tailpipes onto the mufflers if i dont like them turned down. thanks to everyone who replied

 

what is pro dump?

and what would the mac exaust with an catted xpipe sound like?
would it still have muscle car sound/rumble?

 

these are MAC Pro Dumps,

 

so they arent streetable

i want the mac catback exhaust here

 

yes they are streetable but unless you dont want the nice deep rumble of an oldschool muscle car dont bother with these.

 

I thought about having my Magnapacks dumped but I don't like the look of the GT bumper without the pipes.

 

then do what I did and find some V6 driver in your town with aftermarket dual exhaust sticking out of a V6 bumper and trade them. I never planned on using tail pipes... they look dumb to me, so I traded with another True Blue 99+ in town. The swap takes maybe 5 minutes and it's hella easy.

 

Yea I've been looking for a DSG V6 to do just that

 

i have been looking for a v6 MG sdtang that wants to trade for over 8 months sadly.

 

my friend has mac catback on his cobra and I think it sounds like **** no offense..but I just think if your getting aftermarket exhaust that you would want it to be alot louder then your stock, and personally his stock exhaust sounded almost the same as his aftermarket mac..go with magnapacks or SLP LM I or even the SLP LM II

 

how big in inches is the stock mid pipe

if i got a 2.5 in cat back exhaust would it work with the stock h pipe
or should i get the 3 in one

 

The stock mid pipe is fine.Don't go with a 3 inch unless you have some major mod's.You will lose power if you do.

 

The stock mid is 2 1/4.

 

Macs quiet? you need to hear my car they are not quiet.