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what is the maximum dimension of a muffler fitting for the speed6. the magnaflow 2.5 system uses a 4x9 oval 20 inch muffler. how much bigger can you go?

is anyone able to make a list of safe numbers our cars should be running in ie: afr, kr, ltft, boost temps fuel psi etc. just a cushion of minimums and maximums for a stock-mildly tuned car? scouring this forum is getting me multiple different people giving all different kinds of numbers.

can anyone verify if K&N brand filter cleaner and recharger oil is sufficient for the Cobb brand intake system as the filters are interchangable...?

this is your chance to switch to a custom FMIC that everyone is raving about! by selling your ETS TMIC to me! I have paypal and have already made multiple immediate payment transactions on this forum! you could order your FMIC tomorrow! what are you waiting for! what am I waiting for! rahhhhh...

ok, so i finally got some damn cash money, and have gotten a quote of 175-250$ from my mechanic shop to custom pipe me with a single exit. I am interested in magnaflow mufflers as i dont feel their sound and quality/warrantees can be beat. (had the sickest magnaflow custom headerback on my...

can anyone with a lot of experience with all the bolt ons make a list of which makes you run lean, and which makes you run rich. i had a dream that all the engines were blowing because too many people were modding only rich mods or only lean mods at a time and it was tipping the boat. it was...

lookin for a set of boost tubes for an '07 speed6, must be blue or black preferably blue to go with the cobb scheme not willing to pay store prices for less than a foot of hose.

did a search but didnt find anything, how would 17inch wheels with beefier tires work with this car vs 18inch, i read the whole size chart sticky thread but still couldnt find reveiws of 17s.

I had the opportunity, during my compressor surge problem, to switch out my Turbosmart Dual Port, stock BPV, and a Forge BPV. Also I tested out the TSDPBOV in full recirc as well. As I guessed since the begining, the Dual Port function of the Turbosmart, is by far the best performing, sounding...

okay, so the dealership installed spark plugs and a boost guage for me, now the car is ****** up, naturally, after they left me the message on my phone "everything works great!" i am getting compressor surge during every shift with no turbosmart noise whatsoever, but more like chattering of the...

did a search online and couldn't find a driver side defroster gauge pod. looking to buy one. 52mm for a prosport electronic boost gauge.

i want to know who out here has blown thier turbo in correlation to the oil they were running PRIOR to any problems. this car does not come with synthetic oil stock. i have only done oil changes at the dealer so far every 4-6k miles and i have had to ask them and MAKE SURE that they gave me...

been thinking of the cheapest exhaust i can think of to get done at a shop and i want to ask everyones opinion on: a 3inch dump pipe maybe 2 feet long from the cat, so its basically a muffler delete, but keeps both cats and a 1-2 foot pipe bent downward. besides noise, what would be BAD about...

if you live in the tristate area and are afraid that your factory or secondary warrantee may be voided because of mods, i have found a high volume very freindly and enthusiastic group of service people and dealership in Northern NJ. they said as long as the mods did not directly contribute to...

did a search but couldnt find the lug pattern for speed6. front tire blew out bent my rim, cant wait to drop 5 hunj on another damn mazda rim, ******* lug key also didnt work, and shredded itself so my rim is now stuck on the damn car. Pirelli, its time to pay the piper you ******* rubber...

found a cheap set of 4 LTR7IX-11 NGK Laser Iridium Spark Plugs gapped to .44 is this what should be in my car?

anyone know of any gas stations in North NJ that offer 94 or higher? there are no sunocos or shells around that have it anymore.

what are literally the BEST autotunning shops in the area? i live in North Jersey, and i have never had a single idea of where to take my cars around here to shops that specialize in import sports cars. If this was Fast and Furious 6 The Big Apple Autocross, where would they be getting their...

which 3 gauges would be your top choice for a dashpod if in the future you planned on also having an accessport and an msd dashhawk running. what would you display once all of them are in place? and why?

car is in the shop now, after 40k miles of driving all regular like i will give an accurate review within the week. included in the shop work is also Street Unit brand shifter bushings, and EBC Red Stuff brake pads.